HP ProBook 4445s HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M
HP ProBook 4445s Manual
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- HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 1
HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC Maintenance and Service Guide - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 2
2012 Hewlett-Packard Development Company, L.P. Bluetooth is a trademark owned by its proprietor and used by Hewlett-Packard Company under license. Advanced Micro Devices, Inc. AMD are trademarks of Advanced Micro Devices, Inc. Microsoft and Windows are either trademarks or registered trademarks of - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 3
Safety warning notice WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly on your lap 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 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 4
iv Safety warning notice - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 5
Mass storage devices ...23 Miscellaneous parts ...23 Sequential part number listing ...24 4 Removal and replacement procedures ...27 Preliminary replacement requirements 27 Tools required ...27 Service considerations ...27 Plastic parts ...27 Cables and connectors 28 Drive handling 28 Grounding - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 6
Component replacement procedures 32 Service tag ...32 Battery ...33 Bottom door ...34 Optical drive ...35 Hard drive ...38 Memory modules ...40 WLAN/Bluetooth combo card 42 Keyboard ...44 Metal heat shield ...46 Fan ...47 Top cover ...48 Audio board ...54 Fingerprint reader ...56 Power button/ - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 7
...86 Blu-ray BD-R/RE DVD±RW SuperMulti DL Drive 87 DVD-ROM Drive specifications ...88 Specification information in Device Manager 88 7 Backup and recovery ...90 Windows 7 ...90 Creating recovery media with HP Recovery Disc Creator 90 Creating recovery media ...91 Backing up your information 91 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 8
viii - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 9
Panel Memory Description HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC AMD A6-4400M, 3.2-GHz Max/2.7-GHz Base, 4-MB L2 cache, dualcore, 35W Graphics: HD 7520G AMD-A8 4500M, 2.8-GHz Max/1.96-GHz Base, 4-MB L2 cache, quadcore, 35W Graphics: HD 7640G AMD-A4-4300M, 3.0-GHz Max/2.5-GHz - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 10
1) ● 2048 (2048 × 1) Supports 7-mm and 6.35-cm (2.50-in) SATA hard drives with HP 3D DriveGuard Customer-accessible Supports the following drives: ● 750-GB Integrated webcam (720p HD) Supports no camera option Headphone and microphone jacks Realtek RTL8151FH-CG 10/100/1000 4445s (UMA) √ 4446s (disc - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 11
1600 × 1200 external resolution at 75- √ √ GHz (hot plug/unplug with auto-detect) HDMI √ √ Multi-pin AC port √ √ Full-sized keyboard √ √ TouchPad includes: supports 2-way scroll with legend, taps enabled √ √ by default, 2-finger scrolling and zoom enabled by default Smart AC adapter - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 12
Starter, PPP (EDGI) Restore Media: Windows 7 Professional 64 Windows 7 Home Basic 64 Windows 7 Home Premium 64 DRDVD Windows 7 Web-only support: Windows XP Professional Windows 7 Home Basic 32 Windows 7 Home Premium 32 4445s (UMA) √ √ √ √ 4446s (disc) √ √ √ √ 4 Chapter 1 Product - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 13
Category Serviceability Description Windows 7 Professional 32 Certified: Microsoft WHQL End-user replaceable parts: AC adapter Battery (system) Hard drive Optical drive Memory module WLAN module Keyboard 4445s (UMA) √ 4446s (disc) √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ 5 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 14
(3) Left TouchPad button (4) Right TouchPad button Description Turns the TouchPad on and off. Moves the pointer and selects or activates items on the screen. Functions like the left button on an external mouse. Functions like the right button on an external mouse. 6 Chapter 2 External component - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 15
computer is off, in the Suspend state, or in Hibernation. ● White: An integrated wireless device, such as a wireless local area network (WLAN) device and/or a Bluetooth® device, is on. ● Amber: All wireless devices are off. ● Amber: The TouchPad is off. ● Off: The TouchPad is on. Top 7 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 16
Buttons speakers, and fingerprint reader (select models only) Component (1) (2) (3) Power button Speakers (2) Web browser button (select models only) Description ● When the computer is off, press the button to turn on the computer. ● When the computer is on, press the button briefly to initiate - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 17
Component (4) Wireless button (5) Fingerprint reader (select models only) Description Turns the wireless feature on or off but does not establish a wireless connection. NOTE: A wireless connection may be established if one has been previously configured. Allows a fingerprint logon to the - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 18
to the illustration that most closely matches your computer. Component (1) (2) fn key Windows logo key (3) Function keys (4) Embedded numeric keypad (5) Operaing system applications key off is reinstated when the computer is turned back on. 10 Chapter 2 External component identification - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 19
Audio-in (microphone) jack Description ● Blinking white: The hard drive or optical drive is being accessed. ● Amber: HP 3D DriveGuard has temporarily parked the hard drive. Supports the following digital card formats: ● Memory Stick PRO ● Memory Stick PRO Duo (needs an adapter) ● MultiMediaCard - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 20
Right Component (1) (2) (3) (4) USB 2.0 port Description Connect an optional USB device. Optical drive (select models only) Reads an optical disc. NOTE: On select models, the optical drive also writes to an optical disc. Optical drive light (select models only) Lights when the optical drive - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 21
is charged from 90 to 99 percent. ● Blinking amber: A battery that is the only available power source has reached a low battery level. When the battery reaches a critical battery level, the battery light begins blinking rapidly. ● Off: The battery is fully charged. Enables airflow to cool internal - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 22
, refer to the section of the Regulatory, Safety, and Environmental Notices that applies to your country or region. These notices are located in Help and Support. 14 Chapter 2 External component identification - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 23
removed from the battery bay, releases the service door from the computer by sliding the release latches a second time. Holds the battery. Protects the hard drive bay, the wireless LAN (WLAN) module slot, and the memory module slots. CAUTION: To prevent an unresponsive system, replace the wireless - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 24
helps a service technician to determine what components and parts are needed. ● Warranty period (4). This number describes the duration (in years) of the warranty period for the computer. ● Model description (5). This is the alphanumeric identifier used to locate documents, drivers, and support for - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 25
Computer major components Computer major components 17 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 26
Metal heat shield Battery, Li-ion 9-cell (93 WHr, 2.8 Ah) 6-cell (47 WHr, 2.2 Ah) Base enclosure WLAN module Atheros 9485GN 802.11b/g/n 1x1 WiFi and 3012 Bluetooth 4.0 Combo Adapter Atheros AR9485 802.11 b/g/n WiFi Adapter Broadcom 4313GN 802.11b/g/n 1x1 WiFi and 20702 Bluetooth 4.0 Combo Adapter - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 27
bracket, bezel, and screws) Blu-ray ROM DVD±RW SuperMulti DL Drive DVD± RW Double Layer Drive Processor (includes thermal material) AMD A6-4400M (3.0-GHz/2.6-GHz, 4-MB L2 cache) AMD A8-4500M (3.0-GHz/2.1-GHz ,4-MB L2 cache) Hard drive 750-GB, 7200-rpm (2.5 in) 750-GB, 5400 rpm (2.5 in) 640-GB, 5400 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 28
Display components Item Description (1) Display hinge cover included in Display hinge kit spare part number 683463-001 (2) Display bezel includes LCD rubbers For use with models with a webcam For use with models without a webcam (3) Webcam module Microphone module (not illustrated) (4) - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 29
Plastics Kit Item (1) (2) Description Plastics Kit Optical drive protective insert Secure Digital card protective insert Spare part number 683662-001 Plastics Kit 21 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 30
Cable Kit Item (1) (2) (3) (4) Description Cable Kit: Battery connector cable Power connector cable Audio cable USB module with cable 22 Chapter 3 Illustrated parts catalog Spare part number 683640-001 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 31
-W AC adapter 90-W AC adapter for use in India Power cord for use in the United States Power cord for use in the United Kingdom/SIngapore Power cord for use in Thailand Rubber Kit Screw Kit Mouse, optical, 2-button HP optical travel mouse HP basic carrying case Professional slim, top load case Nylon - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 32
Description Notebook combination lock HP keyed cable lock Sequential part number listing CSR flag designations: A = Mandatory B = Optional C = Service technician recommended N = Non-user replaceable Spare part CSR flag number 390632-001 A 434594-001 A 455084-001 A 490371-001 A 490371-031 A 490371- - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 33
1x1 WiFi and 20702 Bluetooth 4.0 Combo Adapter 500-GB, 5400 rpm hard drive (2.5 in) 640-GB, 5400-rpm hard drive (2.5 in) Ralink WLAN Ralink Ripple3 RT5390F 802.11b/g/n 1x1 PCIe HMC Atheros AR9585 802.11b/g/n WiFi Adapter AMD processor A6-4400M (3.0-GHz/2.6-GHz, 4-MB L2 cache) AMD processor A8-4500M - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 34
-001 N 683786-001 N 683787-001 N 683778-001 N 690979-001 A 691110-001 A 691111-001 A Description Keyboard with TouchPad for use in India Plastics kit, includes ODD dummy, and SD dummy Rubber kit, includes 5 ea LCD rubbers and lower case rubbers Screw kit, includes 15 ea all screws Speaker Top cover - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 35
the work area to prevent damage. Plastic parts CAUTION: Using excessive force during disassembly and reassembly can damage plastic parts. Use care when handling the plastic parts. Apply pressure only at the points designated in the maintenance instructions. Preliminary replacement requirements 27 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 36
servicing caught or snagged by parts being removed or replaced. Handle flex cables with extreme care; these drives on surfaces covered with at least one inch of shock-proof foam. Avoid dropping drives from any height onto protective packaging and label the package "FRAGILE." 28 Chapter 4 Removal - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 37
many integrated circuits provide some protection, but in many cases in the internal layers, reducing its life expectancy. CAUTION: To prevent damage to from PCB Packing PCBs in foam-lined box Typical electrostatic voltage levels Relative humidity 10% 40% 35,000 V 15,000 V 12,000 V 5,000 V 6, - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 38
in static-safe tubes, bags, or boxes. ● Protect ESD-sensitive parts and assemblies with conductive or approved containers use properly grounded tools and equipment. ● Use conductive field service tools, such as cutters, screwdrivers, and vacuums. ● When Chapter 4 Removal and replacement procedures - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 39
aprons, and sleeve protectors ● Conductive bins and other service kits ● Static awareness labels ● Material-handling packages ● Nonconductive plastic bags, tubes, or boxes ● Metal tote boxes ● Electrostatic voltage levels and protective materials The following table lists the shielding protection - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 40
many as 95 screws and screw locks, in 15 different sizes, that must be removed, replaced, or loosened when servicing the computer. Make special note of each screw and screw lock size and location during removal and replacement. Service tag When ordering parts or requesting information, provide the - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 41
Description 9-cell, 93 WHr, 2.8 Ah Li-ion battery 6-cell, 47 WHr, 2.2 Ah Li-ion battery Spare part number 633809-001 633805-001 Before disassembling the computer, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 42
Bottom door Spare part number 690979-001 Before disassembling the computer, follow these steps: 1. Shut the AC adapter from the computer. 4. Remove the battery (see Battery on page 33). Remove the bottom door: 1. Position the computer upside-down 34 Chapter 4 Removal and replacement procedures - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 43
cord from the AC outlet, and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 33). 5. Remove the bottom door (see Bottom door on page 34). Remove the optical drive tab (2) to release the optical drive from the computer. Component replacement procedures 35 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 44
4. Remove the optical drive (3) from the computer. 5. If it is necessary to replace the optical drive bracket, position the optical drive with the rear toward you. 6. Remove the two Phillips PM2.0×3.0 screws (1) that secure the optical drive bracket - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 45
7. Remove the optical drive bracket (2). Reverse this procedure to install an optical drive. Component replacement procedures 37 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 46
-001 669299-001 641672-001 645193-001 622643-001 683654-001 Before disassembling the computer, follow these steps: 1. Shut down the computer. If battery bay toward you. 2. Remove the four Phillips PM2.5×4.0 screws (1) that secure the hard drive to the computer. 38 Chapter 4 Removal and replacement - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 47
to disconnect it from the system board connector and remove the drive from the drive bay. 4. If it is necessary to replace the hard drive bracket, open the mylar protective cover (1) and remove the two Phillips PM3.0×3.0 hard drive bracket screws (2) from each side of the hard drive (4 total screws - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 48
the mylar protective cover (4) BIOS. CAUTION: Failure to update the computer to the latest BIOS prior to installing new memory may result in various system problems. To update BIOS: 1. Navigate to www.hp.com. 2. Click Support & Drivers > click Drivers & Software. 40 Chapter 4 Removal and replacement - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 49
Download, click the BIOS link. 7. Click the link for the most recent BIOS. 8. Click the Download button, and then follow the on-screen instructions unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 33). 5. Remove the bottom door (see replacement procedures 41 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 50
Bluetooth functionality. Description Atheros 9485GN 802.11b/g/n 1x1 WiFi and 3012 Bluetooth 4.0 Combo Adapter Atheros AR9485 802.11b/g//n WiFi Adapter Broadcom 4313GN 802.11b/g/n 1x1 WFI and 20702 Bluetooth the computer. 4. Remove the battery (see Battery on page 33). 5. Remove replacement procedures - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 51
with a notch (4) to prevent incorrect insertion. NOTE: If the WLAN antennas are not connected to the terminals on the WLAN module, the protective sleeves must be installed on the antenna connectors, as shown in the following illustration. Reverse this procedure to install the WLAN module. Component - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 52
adapter from the computer. 4. Remove the battery (see Battery on page 33). 5. Remove the bottom door (see Bottom door on page 34). 6. Remove the hard drive (see Hard drive on page 38). 7. Remove the memory (see Memory modules on page 40). Remove the keyboard - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 53
(3) from the top cover.. 7. Rotate the keyboard until it rests on the palm rest (1). 8. Lift the keyboard connector latch (2), and then disconnect the keyboard cable from the system board (3). 9. Remove the keyboard. Reverse this procedure to install the keyboard. Component replacement procedures 45 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 54
drive on page 38). 8. Remove the memory (see Memory modules on page 40). 9. Remove the keyboard (see Keyboard on page 44). Remove the Metal heat shield: 1. Position the computer upside-down with the battery bay away from you. 2. Remove the three Phillips screws (1) that secure the shield. 3. Rotate - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 55
(see Battery on page 33) b. Bottom door (see Bottom door on page 34). c. Hard drive (see Hard drive on page 38) d. Optical drive (see Optical drive on page 35) e. Memory (see Memory modules on page 40) f. WLAN module (see WLAN/Bluetooth combo card on page 42) g. Keyboard (see Keyboard on page - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 56
temperatures, system power consumption, power management/battery conservation configurations, battery fast charging, and software requirements. Exhaust the computer. 4. Remove the following components: a. Battery (see Battery on page 33) b. Bottom door (see Bottom door on page 34). 48 Chapter - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 57
35) e. Memory (see Memory modules on page 40) f. WLAN module (see WLAN/Bluetooth combo card on page 42) g. Keyboard (see Keyboard on page 44) h. Metal heat shield (see Metal heat shield on page 46) i. 9 Torx T8M2.5×6.0 screws (2) ● 1 Phillips PM2.0x2.0 screw (3) Component replacement procedures 49 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 58
the top cover to the computer: a. 3 Phillips PM2.0×3.0 screws (1) from the optical drive bay b. 2 Phillips PM2.5×2.5 broadhead screws (2) from the battery bay 4. Remove the following cables from the system board: (1): Power/function board cable (2): Fingerprint reader cable 50 Chapter 4 Removal and - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 59
5. Remove 3 Torx T8M2.5x6 screws. 6. Position the computer on its side with the display open. Component replacement procedures 51 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 60
battery bay and press to disengage the top cover from the computer. 8. Pull up on the top of the top cover (1), pull upward on the left (2) and right sides (3), and then lift the top cover (4) enough to gain access to the audio board cable underneath. 52 Chapter 4 Removal and replacement procedures - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 61
9. With the top cover at an angle (1), disconnect the audio board cable (2) from the system board, and then remove the top cover from the computer . Reverse this procedure to install the top cover. Component replacement procedures 53 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 62
(see Battery on page 33) b. Bottom door (see Bottom door on page 34). c. Hard drive (see Hard drive on page 38) d. Optical drive (see Optical drive on page 35) e. Memory (see Memory modules on page 40) f. WLAN module (see WLAN/Bluetooth combo card on page 42) g. Keyboard (see Keyboard on page - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 63
4. Rotate the board upward and remove it (3). Reverse this procedure to install the audio board. Component replacement procedures 55 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 64
(see Battery on page 33) b. Bottom door (see Bottom door on page 34). c. Hard drive (see Hard drive on page 38) d. Optical drive (see Optical drive on page 35) e. Memory (see Memory modules on page 40) f. WLAN module (see WLAN/Bluetooth combo card on page 42) g. Keyboard (see Keyboard on page - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 65
by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer. 4. Remove the following components: a. Battery (see Battery on page 33). b. Bottom door (see Bottom door on page 34). c. Hard drive (see Hard drive on page 38) d. Optical drive (see Optical - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 66
e. Memory (see Memory modules on page 40) f. WLAN module (see WLAN/Bluetooth combo card on page 42) g. Keyboard (see Keyboard on page 44) h. Metal heat shield (see Metal heat shield on page 46) Disconnect all external devices connected to the computer. 58 Chapter 4 Removal and replacement procedures - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 67
(see Battery on page 33). b. Bottom door (see Bottom door on page 34). c. Hard drive (see Hard drive on page 38) d. Optical drive (see Optical drive on page 35) e. Memory (see Memory modules on page 40) f. WLAN module (see WLAN/Bluetooth combo card on page 42) g. Keyboard (see Keyboard on page - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 68
(see Battery on page 33). b. Bottom door (see Bottom door on page 34). c. Hard drive (see Hard drive on page 38) d. Optical drive (see Optical drive on page 35) e. Memory (see Memory modules on page 40) f. WLAN module (see WLAN/Bluetooth combo card on page 42) g. Keyboard (see Keyboard on page - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 69
System board NOTE: All system board spare part kits include replacement thermal material. Description System board for use UMA models unplugging the AC adapter from the computer. 4. Remove the following components: a. Battery (see Battery on page 33). b. Bottom door (see Bottom door on page 34). c. - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 70
f. WLAN module (see WLAN/Bluetooth combo card on page 42) g. Keyboard (see Keyboard on page 44) h. Metal heat shield (see Metal heat shield on page 46) i. Fan (see Fan on page 47) j. Top cover (see Top cover on page 48) When replacing the system board, be sure to remove the following components from - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 71
then, lift the system board (2) to access the battery cable connector. Remove the battery cable. The battery cable is included in the Cable Kit, spare part 683640-001. 1. With the system board at an angle, disconnect the battery cable (1) from the bottom of the board. NOTE: The system board may - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 72
(see Battery on page 33) b. Bottom door (see Bottom door on page 34). c. Hard drive (see Hard drive on page 38) d. Optical drive (see Optical drive on page 35) e. Memory (see Memory modules on page 40) f. WLAN module (see WLAN/Bluetooth combo card on page 42) g. Keyboard (see Keyboard on page - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 73
heat sink to the system board. 2. Lift the heat sink up (2), and then pull it out of the computer (3). Remove the UMA heat sink. Component replacement procedures 65 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 74
the screws in the order stamped on the components. Reverse this procedure to install the heat sink. Processor NOTE: All processor spare part kits include replacement thermal material. 66 Chapter 4 Removal and - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 75
Description AMD A6-4400M (3.0-GHz/2.6-GHz, 4-MB L2 cache) AMD A8-4500M (3.0-GHz/3.1-GHz ,4-MB L2 cache) Spare part number 683047-001 683048-001 Before removing the processor, follow these steps: 1. Shut down the computer. If you - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 76
3. Lift the processor (2) straight up and remove it. NOTE: The gold triangle (3) on the processor must be aligned with the triangle (4) embossed on the processor slot when you install the processor. Reverse this procedure to install the processor. 68 Chapter 4 Removal and replacement procedures - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 77
module (see WLAN/Bluetooth combo card on page 42) g. Keyboard (see Keyboard on page 44) h. Metal heat shield (see Metal heat shield on page 46) i. Fan (see Fan on page 47) j. Top cover (see Top cover on page 48) k. System board (see System board on page 61) Remove the RTC battery: 1. Position the - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 78
3. Lift the battery from the system board (2). Reverse this procedure to install the RTC battery. 70 Chapter 4 Removal and replacement procedures - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 79
(see Battery on page 33) b. Bottom door (see Bottom door on page 34). c. Hard drive (see Hard drive on page 38) d. Optical drive (see Optical drive on page 35) e. WLAN module (see WLAN/Bluetooth combo card on page 42) f. Heat sink (see Heat sink on page 64) g. Keyboard (see Keyboard on page 44 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 80
(see Battery on page 33) b. Bottom door (see Bottom door on page 34). c. Hard drive (see Hard drive on page 38) d. Optical drive (see Optical drive on page 35) e. Memory (see Memory modules on page 40) f. WLAN module (see WLAN/Bluetooth combo card on page 42) g. Keyboard (see Keyboard on page - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 81
bracket from the computer (2). 6. Remove the two Torx T8M2.5×6.0 screws (3) from the left hinge and the two Torx T8M2.5×6.0 screws (4) from the right hinge. Component replacement procedures 73 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 82
cables are routed and arranged properly. Failure to properly route the antennas can result in degradation of the computer's WLAN performance. 74 Chapter 4 Removal and replacement procedures - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 83
available in the Display hinge kit, spare part number 683643-001. 9. To replace the display bezel, remove the two rubber screw covers (1) and the two Phillips PM2.5×4.0 screws (2) in the bottom corners of the display bezel. 10. Flex the top (3) of the bezel, the inside edges of the left and - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 84
for webcam use is 683641-001. The spare part number for the display bezel without webcam is 683642-001. 12. If it is necessary to replace the webcam module (shown in the following image) or microphone module from the display enclosure, disconnect the cable from the module (1), and then gently pull - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 85
the tape over the connector (2), and then disconnecting the cable from the panel (3). The display cable is available using spare part number 605766-001. Component replacement procedures 77 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 86
17. If it is necessary to replace the display hinges, remove the three Phillips PM2.0×3.0 screws (1) that secure each display hinge to the display panel. 18. part number 683643-001. Reverse this procedure to reassemble and install the display assembly. 78 Chapter 4 Removal and replacement procedures - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 87
NOTE: An external keyboard or mouse connected to a USB port can be used with Computer Setup only if USB legacy support is enabled. To screen, press esc, and then follow the on-screen instructions. NOTE: You can use either a pointing device (TouchPad, pointing stick, or USB mouse) or the keyboard - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 88
following methods: ● To exit Computer Setup menus without saving your changes: Click the Exit icon 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 > Ignore Changes and Exit, and then press enter. ● To save - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 89
then follow the on-screen instructions to update the BIOS. NOTE: Some download packages contain a file named Readme.txt, which contains information regarding installing and troubleshooting the file. BIOS management using system diagnostics 1. Download the SoftPaq from the HP website. NOTE: Verify - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 90
. 1. Select Start > Help and Support > Maintain. 2. Follow the on-screen instructions to identify your computer and access the BIOS update you want to download. 3. At the download area, follow these steps: a. Identify the BIOS update that is later than the BIOS version currently installed on your - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 91
BIOS installation procedures vary. Follow any instructions that are displayed on the screen after the download is complete. If no instructions are displayed, follow these steps: 1. Open Windows . ● View specification information about the processor, memory size, and system BIOS. Security menu - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 92
analyzes the condition of the battery and calibrates the battery if necessary. If the battery fails the test, contact support to report the issue and purchase a replacement battery. You can view system information and error logs in the Advanced System Diagnostics window. To start Advanced System - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 93
6 Specifications Computer specifications Metric U.S. Dimensions Length 23.5 cm 9.3 in Width 33.9 cm 13.4 in Height (front to rear) 2.8 to 3.5 cm 1.1 to 1.4 in Weight (equipped with optical drive, 1 SODIMM, hard drive, 2.1 kg WLAN module, 6 cell battery) 4.6 lbs Input power Operating - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 94
.0-in), HD display specifications Active diagonal size Resolution Active area PPI Surface treatment Contrast ratio Response time Brightness Viewing angle Backlight Luminance uniformity @ 13 points Lifetime (1/2 luminance) Color coordinate (white) Color tolerance (W, R, G, B) Color gamut Metric 35 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 95
Actual drive specifications may differ slightly. NOTE: Certain restrictions and exclusions apply. Contact technical support for details. CD-R, CDRW), CD-R, CD-RW, DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18), DVD-R, DVD-RW, DVD+R, DVD+RW. DVD-RAM, BD-ROM, BD-R, BD-RE CD-R, CD-RW, DVD+R, DVD+R(9), DVD - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 96
Help and Support for more information. After you open Device Manager, drill-down to a device and double-click it to access its properties. To access Device Manager in Windows 7: 1. Select Start > Computer > System properties. 2. In the left pane, click Device Manager. 88 Chapter 6 Specifications - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 97
To access Device Manager in Windows XP: 1. Select Start > My Computer. 2. In the left pane of the System Tasks window, select View system information. 3. Select Hardware tab > Device Manager. Specification information in Device Manager 89 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 98
information using recovery tools NOTE: For detailed instructions, perform a search for these topics in Help and Support. In case of system instability, HP recommends that you print the recovery procedures and save them for later use. NOTE: Windows includes the User Account Control feature to - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 99
Driver DVD-Installs specific drivers and applications only, in the same way that the HP Software Setup utility installs drivers a window, toolbar, or menu bar by taking a screen shot of your settings. The screen shot and DVDs with double-layer (DL) support store more information than CDs, so using - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 100
Windows Startup Repair to fix problems that might prevent Windows as the drivers, software, and Windows partition and the HP Recovery partition are listed, restart the computer, and then press f8 before the Windows operating system loads. 4. Select Startup Repair. 5. Follow the on-screen instructions - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 101
screen. 5. Follow the on-screen instructions. Using a Windows 7 operating system DVD (purchased separately) To order a Windows 7 operating system DVD, go to http://www.hp.com/support system, as well as drivers, software, and utilities. To initiate recovery using a Windows 7 operating system DVD: - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 102
After the repair is completed: 1. Eject the Windows 7 operating system DVD, and then insert the Driver Recovery disc. 2. Install the Hardware Enabling Drivers first, and then install Recommended Applications. 94 Chapter 7 Backup and recovery - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 103
will be used. ● The power cord sets must have a minimum current capacity of 10 amps and a nominal voltage rating of 125 or 250 V AC, as required by appliance inlet on the back of the computer. Requirements for specific countries and regions Country/region Australia Austria Belgium Canada Denmark - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 104
for evaluation in the country or region where it will be used. 5. The flexible cord must be Type VCTF, 3-conductor, 0.75-mm² conductor size. Power cord set fittings (appliance coupler and wall plug) must bear the certification mark of the agency responsible for evaluation in the country or region - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 105
to the backlight (1) and the liquid crystal display (LCD) panel (2). NOTE: The procedures provided in this chapter are general disassembly instructions. Specific details, such as screw sizes, quantities, and locations, and component shapes and sizes, can vary from one computer model to another - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 106
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 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 107
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. Position the display panel assembly - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 108
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 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 109
frame from the display panel. 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. Display 101 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 110
22. Release the tape (4) that secures the LCD panel to the display rear panel. 23. Remove the LCD panel. 24. Recycle the LCD panel and backlight. 102 Chapter 9 Recycling - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 111
battery removal 33 spare part number 18, 33 battery and service door release latch 15 battery cable removal 63 spare part number 63 battery connector cable, illustrated 22 battery cover 15 BIOS determining version 82 downloading 80 computer specifications 85 connectors, service considerations 28 - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 112
14 internal microphones, identifying 14 K keyboard product description 3 removal 44 spare part numbers 18, 44 keypad, embedded numeric 10 keys esc 10 fn 10 function 10 num lk 10 Windows Applications 10 Windows logo 10 L latches, battery and service door release 15 legacy support, USB 79 lights caps - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 113
system DVD 93 Windows Applications key, identifying 10 Windows Backup and Restore 90 Windows logo key, identifying 10 wireless antennas disconnecting 42 wireless button identifying 9 wireless light 7 wireless, product description 3 WLAN antennas, identifying 14 WLAN/Bluetooth combo card removal - HP ProBook 4445s | HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 114
HP ProBook 4445s Notebook PC
HP ProBook 4446s Notebook PC
Maintenance and Service Guide