HP 621 Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo
HP 621 - Notebook PC Manual
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- HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 1
Compaq 320 Notebook PC Compaq 321 Notebook PC Compaq 420 Notebook PC Compaq 421 Notebook PC Compaq 620 Notebook PC Compaq 621 Notebook PC HP 420 Notebook PC HP 620 Notebook PC Maintenance and Service Guide - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 2
are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. First Edition: April 2010 Document Part Number - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 3
MSG revision history Revision A Publication date October 2010 Description Updated AC adapter part numbers: ● 613149-001-65-W AC adapter for use with computers with UMA graphics ● 613150-001-90-W AC adapter for use with computers with discrete graphics iii - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 4
iv MSG revision history - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 5
or obstruct the computer air vents. Use the computer only on a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact the skin or - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 6
vi Safety warning notice - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 7
components ...16 Multimedia components ...17 Wireless antennas (select models only 19 Additional hardware components ...20 3 Illustrated parts catalog ...21 Service tag ...21 Computer major components ...23 Display assembly components ...29 Plastics Kit ...30 Cables ...31 Mass storage devices ...33 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 8
damage 44 Packaging and transporting guidelines 45 Workstation guidelines 45 Equipment guidelines 46 Component replacement procedures 47 Service tag ...47 Computer feet ...48 Battery ...49 Service door ...49 Hard drive ...52 Memory module ...55 WLAN module ...57 Optical drive ...58 Fan ...60 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 9
Using Computer Setup ...112 Navigating and selecting in Computer Setup 112 Restoring factory settings in Computer Setup 112 Computer Setup menus 113 File menu ...113 Security menu 114 Diagnostics menu 114 System Configuration menu 115 6 Specifications ...117 Computer specifications ...117 39 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 10
External monitor ...135 HDMI ...136 RJ-11 (modem) ...137 RJ-45 (network) ...138 Universal Serial Bus ...138 9 Power cord set requirements ...139 Requirements for all countries and regions 139 Requirements for specific countries and regions 140 10 Recycling ...141 Battery ...141 Display ...141 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 11
1 Product description Category Product Name Processors Description Compaq 320 Notebook PC Compaq 321 Notebook PC Compaq 420 Notebook PC Compaq 421 Notebook PC Compaq 620 Notebook PC Compaq 621 Notebook PC HP 420 Notebook PC HP 620 Notebook PC Intel® Celeron® processors T3300, 2.00-GHz, 800-MHz FSB - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 12
UMA) graphics subsystem integrated with shared video memory (dynamically allocated) ATI Mobility Radeon HD 530v with 512-MB memory All display assemblies support privacy filter 33.8-cm (13.3-in) HD LED backlight panel: ● 1366×768 AntiGlare ● 1366×768 AntiGlare for webcam ● 1366×768 BrightView ● 1366 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 13
5400-rpm ● 250-GB, 7200-rpm ● 250-GB, 5400-rpm ● 160-GB, 7200-rpm ● 160-GB, 5400-rpm HP DriveGuard (not available on Linux) Fixed, no modular requirements SATA 12.7-mm tray load Supports option of no optical drive UMA graphics, UMA graphics, Discrete GL40 chipset GM45 chipset graphics, PM45 chipset - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 14
√ √ (select models only) 56K V.92 3.8 cm (1.5-in) data/fax modem √ √ √ Supports no modem option √ √ √ For use in all countries and regions (WPAN) options by way of Bluetooth® module: Support option for no-WPAN √ √ √ Bluetooth 2.1 √ √ √ One ExpressCard/33-mm √ √ √ 4 Chapter 1 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 15
out (stereo headphone) √ √ √ RJ-11 (modem) √ √ √ RJ-45 (Ethernet, includes link and activity √ √ √ lights) USB 2.0 (3) √ √ √ HP non-Smart adapter √ √ √ VGA (Dsub 15-pin) supporting 1600 × 1200 √ √ √ external resolution at 75-GHz (hot plug/ unplug with auto-detect) Multi-pin - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 16
Category Description UMA graphics, UMA graphics, Discrete GL40 chipset GM45 chipset graphics, PM45 chipset Windows 7 Professional with Office 2007 √ √ √ Personal (Japan only) Windows 7 Professional with Office 2007 √ √ √ Personal with PowerPoint (Japan only) Windows 7 Professional with - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 17
's Republic of China √ √ √ only) DRDVD Windows Vista √ √ √ DRDVD Windows XP Pro √ √ √ Windows Vista Office Ready DVD √ √ √ Certified: Microsoft® WHQL √ √ √ SuSE Linux √ √ √ Web Support: All Windows Vista 64 versions √ √ √ Windows 7 Professional 64 versions √ √ √ 7 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 18
Category Serviceability Description SuSE Linux End-user replaceable parts: AC adapter Battery (system) Hard drive Memory module Keyboard Optical drive WLAN module UMA graphics, UMA graphics, Discrete - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 19
2 External component identification Top Components TouchPad Component (1) TouchPad * (2) TouchPad button (3) TouchPad scroll zone Description Moves the pointer and selects or activates items on the screen. The left and right sides of the single button function like the left and right buttons on an - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 20
Lights NOTE: Refer to the illustration that most closely matches your computer. Component (1) Caps lock light (2) Power light (3) Wireless light 10 Chapter 2 External component identification Description On: Caps lock is on. ● On: The computer is on. ● Blinking: The computer is in the Suspend - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 21
Buttons, switch, and speaker Component (1) Speaker (2) Internal display switch (3) Power button Description Produces sound. Turns off the display if the panel lid is closed while the power is on. ● When the computer is off, press the button to turn on the computer. ● When the computer is on, press - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 22
Keys Component (1) esc key (2) fn key (3) Wireless key (4) Function keys (5) Embedded numeric keypad keys Description Displays system information when pressed in combination with the fn key. Executes frequently used system functions when pressed in combination with a function key, the num lk key, - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 23
Component (1) esc key (2) fn key (3) Function keys (4) Embedded numeric keypad keys (5) Wireless key Description Displays system information when pressed in combination with the fn key. Executes frequently used system functions when pressed in combination with a function key, the num lk key, or the - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 24
Front components Component (1) SD Card Reader (2) Audio-out (headphone) jack (3) Audio-in (microphone) jack Right-side components Description Supports the following optional digital card formats: ● MultiMediaCard (MMC) ● MultiMediaCard 4.2 (MMC Plus, including MMC Plus HC) ● Secure Digital (SD) - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 25
cable slot (3) Vent (4) External monitor port (5) Battery light (6) Power connector (7) RJ-45 (network) jack (8) HDMI port (9) USB port (1) Description Supports optional ExpressCards. Attaches an optional security cable to the computer. NOTE: The security cable is designed to act as a deterrent - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 26
Bottom components Component (1) Battery release latches (2) (2) Battery bay Description Release the battery from the battery bay. Holds the battery. 16 Chapter 2 External component identification - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 27
country. If you replace the module and then receive a warning message, remove the module to restore computer functionality, and then contact technical support. Holds the hard drive. Component (1) Webcam light (select models only) (2) Webcam (select models only) Description On: The webcam is in use - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 28
Component (3) Integrated microphone (4) Audio-in (microphone) jack (5) Audio-out (headphone) jack (6) Speaker Description Records sound. Connects an optional computer headset microphone, stereo array microphone, or monaural microphone. Produces sound when connected to optional powered stereo - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 29
select computer models, at least 2 antennas send and receive signals from one or more wireless devices. These antennas are not visible from outside of to your country or region. These notices are located in Help and Support. Component Description (1) WWAN antennas (2)* (select models only) Send - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 30
Additional hardware components Component Description (1) Power cord* Connects an AC adapter to an AC outlet. (2) Battery* Powers the computer when the computer is not plugged into external power. (3) AC adapter Converts AC power to DC power. *Batteries and power cords vary in appearance by - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 31
the product's hardware components. The part number helps a service technician to determine what components and parts are needed. (4) Model description: This is the alphanumeric identifier used to locate documents, drivers, and support for your computer. (5) Warranty period: This number describes - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 32
22 Chapter 3 Illustrated parts catalog - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 33
Computer major components Computer major components 23 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 34
TouchPad but not TouchPad board and cables) For use in Compaq 33.8-cm (13.3-in) computers 605779-001 For use in HP 35.6-cm (14.0-in) computers 605780-001 For use in Compaq 35.6-cm (14.0-in) computers 605781-001 For use in HP 39.6-cm (15.6-in) computers 605782-001 For use in - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 35
) Description Top cover for Compaq 35.6-cm (14.0-in) computers 605776-001 Top cover for HP 39.6-cm (15.6-in) computers 605777-001 Top cover for Compaq 39.6-cm (15.6-in board with cable 605796-001 Bluetooth module 537921-001 HP Integrated module with Bluetooth 2.1 wireless technology For use - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 36
Item (17) (18) (19) (20) (21) (22) Description Celeron® T3300, 2.0-GHz, 800 MHz FSB, 1-MB cache Pentium T4500, 2.3-GHz, 800 MHz FSB, 1-MB cache Celeron® T1600, 1.66-GHz, 800 MHz FSB, 1-MB cache Celeron® T1700, 1.83-GHz, 800 MHz FSB, 1-MB cache Celeron® T3100, 1.9-GHz, 800 MHz FSB, 1-MB cache - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 37
Item (23) Description ● For use in Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, 504593-004 Argentina, Armenia, Aruba, Australia, Austria, Azerbaijan, the Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bermuda, Bhutan, Bolivia, Bosnia and - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 38
Item (24) (25) Description Optical drive (includes bezel) DVD-ROM Drive DVD±RW Double-Layer Drive with LightScribe Access door For use in 33.8-cm (13.3-in) and 35.6-cm (14.0-in) computers For use in 39.6-cm (15.6-in) computers 608140-001 608141-001 605784-001 605785-001 28 Chapter 3 Illustrated - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 39
.0-in) LCD bezel with webcam Compaq 35.6-cm (14.0-in) LCD bezel without webcam Compaq 35.6-cm (14.0-in) LCD bezel with webcam HP 39.6-cm (15.6-in) LCD bezel without webcam HP 39.6-cm (15.6-in) LCD bezel with webcam Compaq 39.6-cm (15.6-in) LCD bezel without webcam Compaq 39.6-cm (15.6-in) LCD - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 40
without webcam Microphone cable Display enclosure For use in Compaq 33.8-cm (13.3-in) computers For use in HP 35.6-cm (14.0-in) computers For use in Compaq 35.6-cm (14.0-in) computers For use in HP 39.6-cm (15.6-in) computers For use in Compaq 39.6-cm (15.6-in) computers Spare part number 608146 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 41
Item (1) (2) Description Dummy ExpressCard Dummy optical drive Cables Spare part number Item Description Cable Kit , includes: (1) Bluetooth cable (2) RJ-11 cable (3) Main battery connector Spare part number 605793-001 Cables 31 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 42
Item Description (1) WLAN transceiver with cable (2) Microphone cable (3) LCD Cable Kit LCD Cable without webcam ( not shown) LCD Cable with webcam cable (4) USB cable Spare part number spared with display assembly spared with display assembly 605766-001 605767-001 605796-001 32 Chapter 3 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 43
Mass storage devices Item Description (1) Hard drive (includes bracket) 500-GB, 7200-rpm 500-GB, 7200-rpm for use in 39.6-cm (15.6-in) computers 320-GB, 7200-rpm 320-GB, 7200-rpm for use in 39.6-cm (15.6-in) computers 250-GB, 7200-rpm 250-GB, 7200-rpm for use in 39.6-cm (15.6-in) computers 250-GB, - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 44
Miscellaneous parts Description AC adapters 65-W AC adapter for use with computers with UMA graphics 90-W AC adapter for use with computers with discrete graphics Power cords For use in Argentina For use in Australia and New Zealand For use in Brazil For use in Denmark For use in Europe, the Middle - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 45
Sequential part number listing Spare part number 449137-001 490371-001 490371-021 490371-031 490371-061 490371-081 490371-111 490371-201 490371-291 490371-AR1 490371-BB1 490371-D01 504593-003 504593-004 507966-001 510100-001 510100-011 513598-001 513599-001 532324-001 Description RTC battery Power - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 46
for use in computers with UMA graphics subsystems Heat sink for use in computers with discrete graphics subsystems Compaq 33.8-cm (13.3-in) LCD bezel without webcam Compaq 33.8-cm (13.3-in) LCD bezel with webcam HP 35.6-cm (14.0-in) LCD bezel without webcam 36 Chapter 3 Illustrated parts catalog - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 47
not include TouchPad board and cable) Palm rest with TouchPad for HP 39.6-cm (15.6-in) computers (does not include TouchPad board and cable) Palm rest with TouchPad for Compaq 39.6-cm (15.6-in) computers (does not include TouchPad board and cable) Service door for 33.8-cm (13.3-in) and 35.6-cm (14 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 48
Spare part number 605789-001 605790-001 605791-001 605792-001 605793-001 605794-001 605795-001 605796-001 605797-001 605798-001 605799-001 605800-001 605801-001 605802-001 605803-001 605804-001 605805-001 605806-001 605807-001 605808-001 605809-001 605810-001 605811-001 605812-001 605813-001 605813- - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 49
Spare part number Description 605813-051 Keyboard for 35.6-cm (14.0-in) and 33.8-cm (13.3-in) computers for use in France 605813-061 Keyboard for 35.6-cm (14.0-in) and 33.8-cm (13.3-in) computers for use in Italy 605813-071 Keyboard for 35.6-cm (14.0-in) and 33.8-cm (13.3-in) computers for use - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 50
Spare part number Description 605814-081 Keyboard for 39.6-cm (15.6-in) computers for use in Denmark 605814-091 Keyboard for 39.6-cm (15.6-in) computers for use in Norway 605814-121 Keyboard for 39.6-cm (15.6-in) computers for use in French Canada 605814-131 Keyboard for 39.6-cm (15.6-in) - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 51
Spare part number 608146-001 608147-001 608148-001 608149-001 608931-001 611026-001 611027-001 611028-001 611029-001 613149-001 613150-001 Description Display panel AntiGlare without webcam for use in 35.6-cm (14-in) computers Display panel AntiGlare with webcam for use in 35.6-cm (14-in) computers - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 52
● Magnetic screwdriver ● Phillips P0 and P1 screwdrivers ● Torx T8 screwdriver Service considerations The following sections include some of the considerations that you must keep pressure only at the points designated in the maintenance instructions. 42 Chapter 4 Removal and replacement procedures - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 53
Cables and connectors CAUTION: When servicing the computer, be sure that cables are placed in and be sure that the optical drive tray is closed. Handle drives on surfaces covered with at least one inch of shock-proof foam. Avoid dropping drives from any height onto any surface. After removing a hard - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 54
Grounding guidelines Electrostatic discharge damage Electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the degree of sensitivity. Networks built into many integrated circuits provide some protection, but in many cases, ESD contains enough - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 55
material. ● Use a wrist strap connected to a properly grounded work surface and use properly grounded tools and equipment. ● Use conductive field service tools, such as cutters, screwdrivers, and vacuums. ● When fixtures must directly contact dissipative surfaces, use fixtures made only of static - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 56
or soldering aids ● Nonconductive foam ● Conductive tabletop workstations with ground cords of one megohm resistance ● Static-dissipative tables or floor mats with hard ties to the ground ● Field service kits ● Static awareness labels ● Material-handling packages ● Nonconductive plastic bags, tubes - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 57
the product's hardware components. The part number helps a service technician to determine what components and parts are needed. (4) Model description: This is the alphanumeric identifier used to locate documents, drivers, and support for the computer. (5) Warranty period: This number describes - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 58
Computer feet The computer feet are adhesive-backed rubber pads. The feet are included in the Rubber Kit, spare part number 605789-001 for 33.8-cm (13.3-in) and 35.6-cm (14.0-in) computers and in Rubber Kit 608931-001 for 39.6-cm (15.6-in) computers. There are 4 rubber feet that attach to the base - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 59
latches (1) to release the battery. 3. Remove the battery (2) from the computer. Install the battery by inserting it into the battery bay until you hear a click. Service door Description For use in computers with 39.6-cm (15.6-in) displays For use in computers with 35.6-cm (14-in) and 33.8-cm (13 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 60
door on a 39.6-cm (15.6-in) computer: 1. Remove four Phillips PM2.0×3.0 screws (1) that secure the service door to the computer. 2. Slide the service door (2) away from the computer. Remove the service door on a 35.6-cm (14-in) or 33.8-cm (13.3-in) computer: 1. Remove two Phillips PM2.0×3.0 screws - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 61
2. Slide the service door (2) away from the computer. Reverse this procedure to install the switch cover. Component replacement procedures 51 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 62
power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). Remove the hard drive from a 39.6-cm (15.6-in) computer: 1. Position the computer right-side up with the front - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 63
4. Remove the hard drive (4) from the hard drive bay. Remove the hard drive from a 35.6-cm (14-in) or 33.8-cm (13.3-in) computer: 1. Position the computer right-side up with the front toward you. 2. Remove the two Phillips PM2.5×6.0 screws (1) and the Phillips PM2.5×4.0 screw (2) that secure the - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 64
To remove the hard drive bracket, follow these steps: 1. If it is necessary to replace the hard drive bracket, remove the two Phillips PM3.0×4.0 hard drive bracket screws (1) from each side of the hard drive. 2. Lift the bracket (2) straight up to remove it from the hard drive. Reverse this - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 65
from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). Remove the memory module: 1. Position the computer right-side up with the front toward you. 2. Spread the retaining tabs - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 66
Reverse this procedure to install a memory module. 56 Chapter 4 Removal and replacement procedures - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 67
WLAN module Description Spare part number Broadcom 4312 802.11b/g WLAN modules ● For use in Antigua and Barbuda, Barbados, Belize, Canada, the Cayman Islands, Guam, Puerto Rico, Trinidad and Tobago, the U.S. Virgin Islands, and the United States 504593-003 ● For use in Afghanistan, Albania, - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 68
to restore computer functionality, and then contact technical support through Help and Support. Before removing the WLAN module, follow these steps Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). Remove the WLAN module: 1. Disconnect the WLAN - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 69
from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). Remove the optical drive: 1. Position the computer with the right side toward you. 2. Remove the Phillips PM2.5×6.0 screw - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 70
from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). Remove the fan: 1. Position the computer upside down with the front toward you. 2. Disconnect the fan cable (1) from the - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 71
cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the fan (see Fan on page 60). Remove the heat sink on computers with UMA graphics subsystems: 1. Position - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 72
3. Raise the end of the heat sink (3) to free it from the system board components and then remove the heat sink (4) from the system board. Remove the heat sink on computers with discrete graphics subsystems: 1. Position the computer right-side up with the front facing you. 2. Following the sequence - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 73
(see Service door on page 49). 6. Remove the fan (see Fan on page 60). 7. Remove the heat sink (see Heat sink on page 61). Remove the processor: 1. Position the computer right-side up with the front toward you. 2. Use a flat-bladed screwdriver to turn the processor locking screw (1) one-half turn - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 74
with 39.6-cm (15.6-in) displays (includes TouchPad) Palm rest for Compaq brand units with 35.6-cm (14-in) displays (includes TouchPad) Palm rest for Compaq brand units with 33.8-cm (13.3-in) displays (includes TouchPad) Palm rest for HP brand units with 39.6-cm (15.6-in) displays (includes TouchPad - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 75
4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). Remove the palm rest on 39.6-cm (15.6-in) computers: 1. Position the computer upside down with the front toward you. 2. Remove - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 76
(14-in) or 33.8-cm (13.3-in) computers: 1. Position the computer upside down with the front toward you. 2. Remove the two Torx M2.5×6.0 screws (1) and one Philllips PM2.25×2.5 broadhead screw (2) that secure the palm rest to the computer. 66 Chapter 4 Removal and replacement procedures - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 77
3. Turn the computer over, rotate the palm rest up (1) and slide the palm rest to the right (2) to release it from the computer. 4. Release the ZIF connector (1) to which the TouchPad cable is connected, and then disconnect the cable (2) from the system board. 5. Remove the palm rest. Remove the - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 78
3. Remove the single screw (1) that secures the TouchPad board to the palm rest and lift the TouchPad board (2) from the palm rest. Reverse this procedure to install the TouchPad board. Reverse this procedure to install the palm rest. 68 Chapter 4 Removal and replacement procedures - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 79
cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the palm rest (see Palm rest on page 64). Remove the keyboard on 39.6-cm (15.6-in) computers: 1. Position - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 80
3. Turn the unit over, lift the top edge of the keyboard (1) and slide it (2) towards the display. 4. Rest the keyboard on its edge and slide the keyboard back toward the display then, release the ZIF connector (1) to which the keyboard cable is attached, and disconnect the keyboard cable (2) from - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 81
2. Remove two Phillips PM2.5×3.0 broadhead black screws (1), one Phillips PM2.5×3.0 broadhead silver screw (2), and two Torx M2.5×6.0 screws (3) that secure the keyboard. 3. Turn the unit over, lift the top edge of the keyboard (1) - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 82
4. Rest the keyboard on its edge and slide the keyboard back toward the display then, release the ZIF connector (1) to which the keyboard cable is attached, and disconnect the keyboard cable (2) from the system board. Reverse this procedure to install the switch cover and keyboard. 72 Chapter 4 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 83
Compaq brand computers with 33.8-cm (13.3-in) displays Top cover for use in HP brand computers with 39.6-cm (15.6-in) displays Top cover for use in HP . 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the palm rest (see Palm rest on - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 84
3. Remove the nine Torx M2.5×6.0 screws (1), three Phillips PM2.5×3.0 black broadhead screws (2), and three Phillips PM2.0×3.0 screws (3). 4. Turn the computer over so it is right-side up and remove four Torx M2.5×6.0 screws. 74 Chapter 4 Removal and replacement procedures - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 85
5. Release the ZIF connector (1) and remove the power switch cable (2). 6. Rotate the top cover up (1) and remove it from the base enclosure (2). Component replacement procedures 75 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 86
Remove the top cover on a 35.6-cm (14.0-in) and 33.8-cm (13.3-in) computer: 1. With the display panel in the open position, press in (1) of the ExpressCard to release it and then pull the card (2) from the computer. 2. Position the computer upside down with the front toward you. 3. Remove the two - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 87
4. Turn the computer over so it is right-side up and remove five Torx M2.5×6.0 screws. 5. Release the ZIF connector (1) and disconnect the power switch cable (2). Component replacement procedures 77 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 88
power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the keyboard (see Keyboard on page 69). 78 Chapter 4 Removal and replacement procedures - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 89
Remove the power switch board: 1. Release the ZIF connector (1) and disconnect the ribbon cable (2) from the system board. 2. Remove the Phillips M2.5×3.0 broadhead screw (1) that secures the board to the base pan, raise the end of the board (2), and then slide the board out of the retainer (3). - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 90
Bluetooth module NOTE: The Bluetooth module spare part number is 537921-002 and is used in all countries and regions except Japan and Asia Pacific countries and regions. The Bluetooth module cable is included in the Cable Kit, spare part number 605793-001. See Cables on page 31 for more Cable Kit - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 91
2. Disconnect the Bluetooth cable (1) from the system board and remove the antenna (2) from the base enclosure. The antenna is held to the base enclosure with adhesive. Reverse this procedure to install the Bluetooth module. USB connector assembly The spare part number for the USB connector assembly - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 92
3. Remove the Torx M2.5×6.0 screw (3) then, lift the USB connector assembly (4) from the base enclosure. Remove the USB connector assembly on 35.6-cm (14.0-in) and 33.8-cm (13.3-in) computers: 1. Position the computer right-side up with the right side toward you. 2. Release the ZIF connector (1) and - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 93
cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the palm rest (see Palm rest on page 64). 7. Remove the keyboard (see Keyboard on page 69). 8. Remove the - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 94
cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the palm rest (see Palm rest on page 64). 7. Remove the keyboard (see Keyboard on page 69). 8. Remove the - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 95
as it will comfortably go. CAUTION: Support the display assembly when removing the retaining screws. Failure to support the display assembly can result in damage Be careful of the grounding cable (2) that is secured by one of the hinge retaining screws. 5. Lift the display assembly (3) from the - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 96
it will comfortably go. CAUTION: Support the display assembly when removing the retaining screws. Failure to support the display assembly can result enclosure. Be careful of the grounding cable (2) that is secured by one of the hinge retaining screws. 5. Lift the display assembly (3) from - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 97
Remove the display assembly: 1. If it is necessary to replace the display bezel, display enclosure, or display hinges, remove the two mylar screw covers (1) and the 2 Phillips PM2.5×4.0 screws (2) that secure the display bezel to the display assembly. The screw covers are available in the Rubber Kit - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 98
4. If it is necessary to replace the webcam module, disconnect the webcam cable from the module (1), and pull the webcam module (2) that is attached with adhesive off the display enclosure. The webcam module can be ordered by using spare part number 611026-001. NOTE: To replace the webcam module in - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 99
2. Remove the display hinges (2) by pulling them away from the display panel. The left and right display hinges are available in the Hinge Kit, spare part number 605769-001. Remove the display hinges from 35.6-cm (14.0-in) or 33.8-cm (13.3-in) computers: 1. Remove the six Phillips PM2.0×3.0 screws - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 100
2. Remove the microphone cable from the raceway (2) in the display enclosure. To replace the display cable assembly: 1. Place the display panel face down on a protected soft surface and remove the clear protector (1) that covers the cable connector on the back of the panel. 2. Remove the display - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 101
2. Peel the WLAN antenna receivers (2) from the enclosure Reverse this procedure to assemble the display assembly. Component replacement procedures 91 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 102
cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the hard drive (see Hard drive on page 52). 7. Remove the optical drive (see Optical drive on page 58 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 103
3. Remove the two Phillips M2.0×3.0 screws (3) that secure the system board to the base enclosure. 4. Remove the optical drive extender by first removing the Phillips PM2.0×3.0 screw (1) that secures the extender to the base enclosure. 5. Lift the system board slightly and then pull the extender - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 104
7. Pull the extender out (2) of the system board and lift it from the base enclosure. 8. Release the RJ-11 cable from the cable routing area, lift the connector from the base enclosure (1), and disconnect the cable (2) from the system board. 9. Disconnect the main battery cable (3) from the bottom - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 105
2. Remove the Phillips PM2.0×3.0 screw (1) that secures the board to the base enclosure, disconnect the audio ZIF connector and remove the flat-ribbon cable (2) from the system board. 3. Remove the optical drive extender on the 35.6-cm (14.0-in) computer by first removing the Phillips PM2.0×3.0 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 106
cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the hard drive (see Hard drive on page 52). 7. Remove the optical drive (see Optical drive on page 58 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 107
2. Lift the connector up (2) and out of the base enclosure. Reverse the procedure to install the main battery connector. Component replacement procedures 97 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 108
cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the hard drive (see Hard drive on page 52). 7. Remove the optical drive (see Optical drive on page 58 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 109
cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the hard drive (see Hard drive on page 52). 7. Remove the optical drive (see Optical drive on page 58 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 110
3. Lift the modem module (2) straight up from the system board. 4. With the modem raised, disconnect the RJ-11 cable (1) from beneath the modem. 5. Remove the tape (2) that secures the cable to the system board and then, remove the cable (3). Reverse this procedure to install the modem module. Audio - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 111
cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the hard drive (see Hard drive on page 52). 7. Remove the optical drive (see Optical drive on page 58 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 112
2. Lift the audio board (2) from the base enclosure. Reverse this procedure to install the audio board. 102 Chapter 4 Removal and replacement procedures - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 113
working or will not load. NOTE: Some of the Computer Setup menu items listed in this guide may not be supported by your computer. NOTE: An external keyboard or mouse connected to a USB port can be Setup screen, press esc, and then follow the on-screen instructions. Computer Setup in Windows 103 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 114
Security, or System Configuration menu. To exit Computer Setup menus, choose one of the following methods: ● To exit Computer Setup menus without saving your in the lower-left corner of the screen, and then follow the on-screen instructions. - or - Use the tab key and the arrow keys to select File - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 115
Some of the Computer Setup menu items listed in this guide may not be supported by your computer. File menu Select System Information Set System on any batteries installed in the computer. ● Error Log-Displays a log file if any errors have occurred. Replace the configuration settings in Computer - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 116
section may not be supported by your computer. Select Setup BIOS Administrator Password User Management > Create a New BIOS User Account (requires a BIOS administrator password) Password Policy (requires a BIOS administrator password) HP SpareKey Always Prompt for HP SpareKey Enrollment Fingerprint - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 117
legacy boot order. ● Enable/disable USB legacy support (enabled by default). When enabled, USB legacy support allows the following: ◦ Use of a USB select models only). When enabled, the processor can disable some virus code execution, which helps to improve computer security (enabled by default). - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 118
fast charge (enabled by default). ● Enable/disable HP QuickLook 2 (enabled by default). ● Enable/disable preboot authentication on HP QuickLock boot (enabled by default). ● Enable/disable HP QuickWeb (enabled by default). ● Enable/disable HP QuickWeb write protect (disabled by default). ● Enable - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 119
Boot to Network (set by default) ◦ Follow Boot Order ● Enable/disable the ambient light sensor (enabled by default). ● Enable/disable the notebook upgrade bay device (enabled by default). ● Enable/disable the fingerprint device (enabled by default). ● Enable/disable the integrated camera (enabled by - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 120
on next boot. ● Select terminal emulation mode. Options include the following: ◦ ANSI (default setting) ◦ VT100 ● Enable/disable firmware progress event support. ● Enable/disable initiate Intel CIRA. Change, view, or hide security levels for all BIOS menu items. Restore the default security settings - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 121
is not working or will not load. NOTE: Some of the Computer Setup menu items listed in this guide may not be supported by your computer or your operating system. NOTE: Pointing devices are not supported in Computer Setup. You must use the keyboard to navigate and make selections. NOTE: An external - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 122
Setup is not operating system based, it does not support the TouchPad. Navigation and selection are by keystroke: ● one of the following methods: ● To exit Computer Setup without saving your preferences, use the arrow keys to select File > Ignore Changes And Exit. Then follow the instructions - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 123
by your computer or your operating system. File menu NOTE: Some of the menu items listed in this section may not be supported by your computer or your operating system. Select System information Restore Defaults Ignore Changes And Exit Save Changes And Exit To do this ● View identification - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 124
, the data on the primary hard drive is destroyed permanently. Diagnostics menu NOTE: Some of the menu items listed in this section may not be supported by your computer or your operating system. Select HDD Self-Test Options Memory Check To do this Run a comprehensive self-test on any hard drive - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 125
boot device: USB floppy ◦ 3rd boot device: USB SuperDisk ◦ 4th boot device: Notebook hard drive ◦ 5th boot device: USB hard disk ◦ 6th boot device: Network controller left ctrl key. ● Enable/disable USB legacy support. When enabled, USB legacy support allows the following: ◦ Use of a USB keyboard - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 126
Select Built-in device options Port options To do this ● Enable/disable embedded WLAN Device Radio. ● Enable/disable embedded Bluetooth Device Radio. ● Enable/disable Network Interface Controller (NIC) ● Enable/disable LAN/WLAN Switching. ● Enable/disable Wake on LAN. ● Enable/disable the - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 127
6 Specifications Computer specifications Metric Dimensions - 39.6-cm (15.6-in) Depth 24.96 cm Width 37.18 cm Height (front to rear) 2.75 to 3.55 cm Dimensions - 35.6-cm (14.0-in) Depth 22.8 cm Width 32.3 cm Height (front to rear) 2.68 to 3.48 cm Dimensions - 33.8-cm (13.3-in) Depth - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 128
Metric U.S. Relative humidity Operating 10% to 90% Nonoperating 5% to 95% Maximum altitude (unpressurized) Operating -15 m to 3,048 m -50 ft to 10,000 ft Nonoperating -15 m to 12,192 m -50 ft to 40,000 ft Shock Operating 125 g, 2 ms, half-sine Nonoperating 200 g, 2 ms, half-sine - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 129
35.6-cm (14.0-in) display specifications Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Format Configuration Backlight Response Time Total power consumption Viewing angle @ CR>10 Metric U.S. 17.40 cm 6.9 in 30.94 cm 12.2 in 35.50 cm 14.0 in 262 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 130
33.8-cm (13.3-in) display specifications Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Format Configuration Backlight Response Time Total power consumption Viewing angle @ CR>10 Metric U.S. 16.50 cm 6.5 in 29.34 cm 11.5 in 33.66 cm 13.3 in 262 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 131
referring to hard drive storage capacity. Actual accessible capacity is less. Actual drive specifications may differ slightly. NOTE: Certain restrictions and exclusions apply. Contact technical support for details. Hard drive specifications 121 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 132
DVD-ROM Drive specifications Applicable disc Access time Random Cache buffer Data transfer rate CD-R (24X) CD-RW (10X) CD-ROM (24X) DVD (8X) Multiword DMA mode 2 DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18, CD-ROM (Mode 1 and 2), CD Digital Audio, CD-XA ready (Mode 2, Form 1 and Form 2), CD-I (Mode 2, - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 133
DVD±RW Double-Layer Combo Drive specifications Applicable disc Access time Random Cache buffer Data transfer rate 24X CD-ROM 8X DVD-ROM 24X CD-R 16X CD-RW 8X DVD+R 4X DVD+RW 8X DVD-R 4X DVD-RW 2.4X DVD+R(9) 5X DVD-RAM Transfer mode Read: Write: CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CDROM, CD-ROM XA, - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 134
the computer to a previous state ● Recovering information using recovery tools NOTE: For detailed instructions, perform a search for these topics in Help and Support. NOTE: In case of system instability, HP recommends that you print the recovery procedures and save them for later use. Backing up - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 135
in your computer. NOTE: DVDs and DVDs with double-layer (DL) support store more information than CDs, so using them for backup reduces the number All Programs > Maintenance > Backup and Restore. 2. Follow the on-screen instructions to set up your backup, create a system image (select models only), - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 136
Repair to fix problems that might Support as the drivers, software, guide. 3. If the Windows partition and the HP Recovery partition are listed, restart the computer, and then press f8 before the Windows operating system loads. 4. Select Repair your computer. 5. Follow the on-screen instructions - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 137
accessible. To order a Windows 7 operating system DVD, go to http://www.hp.com/support, select your country or region, and follow the on-screen instructions. You can also order the DVD by calling technical support. For contact information, refer to the Worldwide Telephone Numbers booklet included - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 138
the computer to a previous state ● Recovering information using recovery tools NOTE: For detailed instructions, perform a search for these topics in Help and Support. NOTE: In case of system instability, HP recommends that you print the recovery procedures and save them for later use. Backing up - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 139
DVDs and DVDs with double-layer (DL) support store more information than CDs, so using Restore. 2. Follow the on-screen instructions to back up your entire computer (select use Windows Startup Repair to fix problems that might prevent Windows from guide. Backup and recovery in Windows Vista 129 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 140
and Support. Using f11 CAUTION: Using f11 completely erases hard drive contents and reformats the hard drive. All files you have created and any software installed on the computer are permanently removed. The f11 recovery tool reinstalls the operating system and HP programs and drivers that were - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 141
://www.hp.com/support, select your country or region, and follow the on-screen instructions. You can also order the DVD by calling technical support. For recovery process helps you restore the operating system, as well as drivers, software, and utilities. To initiate recovery using a Windows Vista - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 142
and folders ● Scheduling automatic backups ● Creating recovery points ● Recovering information NOTE: For detailed instructions, perform a search for these topics in Help and Support. NOTE: In case of system instability, HP recommends that you print the recovery procedures and save them for later use - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 143
screen instructions. NOTE: For additional information on initiating a recovery in Windows, perform a search for this topic in Help and Support. operating system, software, and drivers. Software, drivers, and updates not installed by HP must be manually reinstalled. To recover your operating - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 144
8 Connector pin assignments Audio-in (microphone) Pin Signal 1 Audio signal in 2 Audio signal in 3 Ground Audio-out (headphone) Pin Signal 1 Audio out, left channel 2 Audio out, right channel 3 Ground 134 Chapter 8 Connector pin assignments - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 145
External monitor Pin Signal 1 Red analog 2 Green analog 3 Blue analog 4 Not connected 5 Ground 6 Ground analog 7 Ground analog 8 Ground analog 9 +5 VDC 10 Ground 11 Monitor detect 12 DDC 2B data 13 Horizontal sync 14 Vertical sync 15 DDC 2B clock External monitor 135 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 146
HDMI Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Signal Transition minimized differential signal (TMDS) data 2+ TMDS data 2 shield TMDS data 2- TMDS data 1+ TMDS data 1 shield TMDS data 1- TMDS data 0+ TMDS data 0 shield TMDS data 0- TMDS clock+ TMDS clock shield TMDS clockConsumer - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 147
RJ-11 (modem) Pin Signal 1 Unused 2 Tip 3 Ring 4 Unused 5 Unused 6 Unused RJ-11 (modem) 137 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 148
RJ-45 (network) Pin Signal 1 Transmit + 2 Transmit - 3 Receive + 4 Unused 5 Unused 6 Receive - 7 Unused 8 Unused Universal Serial Bus Pin Signal 1 +5 VDC 2 Data - 3 Data + 4 Ground 138 Chapter 8 Connector pin assignments - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 149
9 Power cord set requirements The wide range input feature of the computer permits it to operate from any line voltage from 100 to 120 volts AC or from 220 to 240 volts AC. The 3-conductor power cord set included with the computer meets the requirements for use in the country or region where the - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 150
Requirements for specific countries and regions Country/region Accredited agency Applicable note number Australia EANSW 1 Austria OVE 1 Belgium CEBC 1 Canada CSA 2 Denmark DEMKO 1 Finland FIMKO 1 France UTE 1 Germany VDE 1 Italy IMQ 1 Japan METI 3 The Netherlands - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 151
them carefully. NOTE: Materials Disposal. This HP product contains mercury in the backlight in the .eiae.org. This section provides disassembly instructions for the display assembly. The display provided in this chapter are general disassembly instructions. Specific details, such as screw sizes, - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 152
Perform the following steps to disassemble the display assembly: 1. Remove all screw covers (1) and screws (2) that secure the display bezel to the display assembly. 2. Lift up and out on the left and right inside edges (1) and the top and bottom inside edges (2) of the display bezel until the bezel - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 153
4. Disconnect all display panel cables (1) from the display inverter and remove the inverter (2). 5. Remove all screws (1) that secure the display panel assembly to the display enclosure. 6. Remove the display panel assembly (2) from the display enclosure. 7. Turn the display panel assembly upside- - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 154
10. Remove the display panel frame (2) from the display panel. 11. Remove the screws (1) that secure the backlight cover to the display panel. 12. Lift the top edge of the backlight cover (2) and swing it outward. 13. Remove the backlight cover. 14. Turn the display panel right-side up. 144 Chapter - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 155
15. Remove the backlight cables (1) from the clip (2) in the display panel. 16. Turn the display panel upside-down. WARNING! The backlight contains mercury. Exercise caution when removing and handling the backlight to avoid damaging this component and causing exposure to the mercury. 17. Remove the - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 156
18. Remove the backlight from the backlight frame. 19. Disconnect the display panel cable (1) from the LCD panel. 20. Remove the screws (2) that secure the LCD panel to the display rear panel. 21. Release the LCD panel (3) from the display rear panel. 22. Release the tape (4) that secures the LCD - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 157
options AMT setup prompt (CtrlP) 110 firmware progress event support. 110 firmware verbosity 110 initiate Intel CIRA 110 termiinal emulation 11 C Cable Kit contents 31 spare part number 31 cables, service considerations 43 caps lock light, identifying 10 chipset, product description 2 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 158
optical drive 14 DriveLock automatic 106 password 106 Driver Recovery disc 133 drives boot order 107, number 25 hinge, spare part number 89 HP QuickLook 108 I integrated microphone, identifying 18 16 LCD Cable contents 32 spare part number 32 legacy support, USB 103, 107, 111, 115 lights caps lock - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 159
2 modem module 4 operating system 5 optical drives 3 panels 2 pointing devices 5 ports 5 power requirements 5 processors 1 product name 1 security 5 serviceability 8 wireless 4 product name 1 R recovery partition 127, 130 release latches, battery 16 removal/replacement preliminaries 42 procedures 47 - HP 621 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 160
HP SpareKey enrollment 106 password policy 106 set up BIOS administrator password 106 System IDs 106 user management 106 security, product description 5 service considerations 42 service door removal 49 spare part numbers 49 service tag, location 21, 47 serviceability 81 USB legacy support 103, 107,
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Maintenance and Service Guide