HP Pro c640 G2 Chromebook Enterprise Maintenance and Service Guide
HP Pro c640 G2 Chromebook Enterprise Manual
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- HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 1
Maintenance and Service Guide SUMMARY This guide provides information about spare parts, removal and replacement of parts, security, backing up, and more. - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 2
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: June 2021 Document Part Number: M73765-001 Product notice This guide describes features that - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 3
Safety warning notice Reduce the possibility of heat-related injuries or of overheating the computer by following the practices described. 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 - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 4
iv Safety warning notice - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 5
Display assembly subcomponents ...14 Miscellaneous parts ...16 4 Removal and replacement procedures preliminary requirements 18 Tools required ...18 Service considerations ...18 Plastic parts ...18 Cables and connectors ...18 Drive handling ...18 Electrostatic discharge information ...19 Generating - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 6
Accessing support information ...24 5 Removal and replacement procedures for authorized service provider parts 26 Component replacement procedures ...26 Preparation for disassembly ...26 Bottom cover ...26 Battery ...27 Solid-state drive ...29 Speakers ...29 Touchpad ...30 Fingerprint - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 7
9 Power cord set requirements ...60 Requirements for all countries ...60 Requirements for specific countries and regions 60 10 Recycling ...62 Index ...63 vii - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 8
viii - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 9
frequency, 4 MB cache, 2 cores) Graphics Internal graphics Intel Iris® Xe Graphics (i7/i5 processors) Intel UHD Graphics (i3/Pentium/Celeron processors) Supports HD Decode, DX12, and HDMI Display 35.6 cm (14.0 in), WLED, antiglare, eDP, narrow bezel, nontouch Full high definition (FHD) (1920 - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 10
second Camera privacy cover Wireless Integrated wireless options with dual antennas Intel® Wi-Fi 6 AX201 + Bluetooth® 5 (non-vPro®) Media card reader Supports microSD™, SDHC™, SDXC™ up to UHS-104 Push-push insertion/removal Ports HDMI v2.0 Audio-out (headphone)/audio-in (microphone) combo - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 11
45 W, nPFC, straight, 1.8 m (6 ft) Power cord C5, 1 m (3.3 ft) Security Fingerprint sensor (select products only) Camera privacy cover H1 Secure Microcontroller Operating system Google® Chrome™ 64 Serviceability End user replaceable parts AC adapter 3 - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 12
powered stereo speakers, headphones, earbuds, a headset, or a television audio cable. Also connects an optional headset microphone. This jack does not support optional standalone microphones. WARNING! To reduce the risk of personal injury, adjust the volume before putting on headphones, earbuds, or - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 13
Table 2-1 Right-side components and their descriptions (continued) Component Description (4) USB Type-C® power connector and Connects an AC adapter that has a USB Type-C connector, SuperSpeed port supplying power to the computer and, if needed, charging the computer battery. - and - - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 14
Table 2-2 Left-side components and their descriptions (continued) Component Description (3) USB Type-C power connector and SuperSpeed Connects an AC adapter that has a USB Type-C connector, port supplying power to the computer and, if needed, charging the computer battery. - and - Connects - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 15
Table 2-3 Display components and their descriptions (continued) Component Description (3) Camera light On (white): The camera is in use. On (amber): The camera is turned off by the switch. Off: The camera is turned off by the software. (4) Camera Allows you to video chat, record video, and - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 16
Speakers and fingerprint reader Speakers are located on the right and left of the keyboard. Fingerprint readers can be located on the touchpad, on a side panel of the computer, or on the top cover below the keyboard. Table 2-5 Speakers and fingerprint reader and their descriptions Component - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 17
Table 2-6 Special keys and their descriptions Component (1) esc key (2) Action keys (3) Power key (4) Search key Description Activates certain computer functions when pressed in combination with other keys, such as tab or shift. Execute frequently used system functions. ● When the computer - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 18
provide information that you might need when you troubleshoot system problems or travel internationally with the computer. Labels can the bottom of a tablet kickstand. ● Service label-Provides important information to identify your computer. When contacting support, you might be asked for the serial - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 19
Table 2-10 Service label components Component (1) HP product name (2) Model number (3) Warranty period (4) Product ID (5) Serial number ● Regulatory labels-Provide regulatory information about the computer. ● Wireless certification labels- - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 20
supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then follow the on-screen instructions. NOTE: Details about your computer, including model, serial number, product key, and length of warranty, are on the service tag at the - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 21
Table 3-1 Computer major component descriptions and part numbers Item Component Spare part number (1) Display assembly NOTE: Display assemblies are available as spare parts only at the subcomponent level. (2) Top cover with keyboard Backlit M57281-xx1 Backlit, fingerprint sensor M57282- - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 22
Table 3-1 Computer major component descriptions and part numbers (continued) Item Component NOTE: USB board cables are available in as spare part number M57285-001 for HS and M57286-001 for LS. (7) Bottom cover (8) Fingerprint reader bracket (available in the Bracket Kit) (9) Fingerprint - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 23
Table 3-2 Display component descriptions and part numbers Item Component (1) Display bezel (2) Display panel FHD, nontouch FHD, touch HD, nontouch HD, touch (3) Top bracket (4) Hinges (left and right) (5) Display cable Nontouch Touch (6) Wireless antennas (7) Hinge cover (8) - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 24
(nPFC, 1.8 m [5.9 ft]) 65 W 45 W Screw Kit Display Adhesive Tape Kit (includes cover tape and bezel tape) Bracket Kit (includes touchpad support bracket and fingerprint bracket) Miscellaneous Hardware Kit (includes touchpad dome rubber cap with protective tape and touchpad protective tape) Plastics - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 25
Table 3-3 Miscellaneous part descriptions and part numbers (continued) Component The United Kingdom Duckhead power cord Japan Spare part number L19373-001 L33157-001 Miscellaneous parts 17 - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 26
during disassembly and reassembly can damage plastic parts. Cables and connectors Handle cables with extreme care to avoid damage. IMPORTANT: When servicing the computer, be sure that cables are placed in their proper locations during the reassembly process. Improper cable placement can damage the - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 27
IMPORTANT: Drives are fragile components. Handle them with care. To prevent damage to the computer, damage to a drive, or loss of information, observe these precautions: Before removing or inserting a hard drive, shut down the computer. If you are unsure whether the computer is off or in Hibernation - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 28
Table 4-1 Static electricity occurrence based on activity and humidity (continued) Relative humidity Event 55% 40% Walking across vinyl floor Motions of bench worker Removing DIPs (dual in-line packages) from plastic tube 3,000 V 400 V 400 V 5,000 V 800 V 700 V Removing DIPs from vinyl tray - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 29
. ● Keep the work area free of nonconductive materials, such as ordinary plastic assembly aids and polystyrene foam. ● Use conductive field service tools, such as cutters, screwdrivers, and vacuums. ● Avoid contact with pins, leads, or circuitry. Recommended materials and equipment HP recommends - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 30
● Conductive tote boxes ● Opaque shielding bags ● Transparent metallized shielding bags ● Transparent shielding tubes Cleaning your computer Cleaning your computer regularly removes dirt and debris so that your device continues to operate at its best. Use the following information to safely clean - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 31
IMPORTANT: Keep liquids away from the product. Avoid getting moisture in any openings. If liquid makes its way inside your HP product, it can cause damage to the product. Do not spray liquids directly on the product. Do not use aerosol sprays, solvents, abrasives, or cleaners containing hydrogen - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 32
is not possible, use an ionizer to dissipate electric charges. Accessing support information Use this information to find the HP support that you need. Table 4-3 Support information locations Service consideration Path to access information Records of reported failure incidents stored on - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 33
www.hp.com. 2. Place the cursor over Problem solving to display more options. 3. Select Support & Troubleshooting. 4. Type the serial number, product number, 2. Place the cursor over Support resources to display more options. 3. Select Authorized service providers. Component and diagnosis - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 34
. For complete and current information about supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then follow the on-screen instructions. You must remove, replace, or loosen as many as 50 screws when you service the parts described in this chapter - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 35
2. Use a nonmarking, nonconductive tool near the hinges (1) to release the bottom cover from the computer (2). 3. Remove the bottom cover from the computer (3). To replace the bottom cover, reverse the removal procedures. Battery To remove the battery, use this procedure and illustration. Table 5-2 - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 36
to the computer. 3. Remove the battery from the computer (3). To insert the battery, reverse the removal procedures. 28 Chapter 5 Removal and replacement procedures for authorized service provider parts - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 37
Solid-state drive To remove the M.2 solid-state drive, use this procedure and illustration. Table 5-3 Solid-state drive description and part number Description Solid-state drive, 256 GB Solid-state drive, 128 GB Spare part number M11042-002 M11040-002 Before removing the solid-state drive, follow - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 38
and part number Description Touchpad (includes rubber and protective tape) Touchpad cable Touchpad support bracket (included in Bracket Kit) Spare part number M59382-001 M57289-001 M12524 27). Remove the touchpad: 30 Chapter 5 Removal and replacement procedures for authorized service provider parts - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 39
1. Remove the four Phillips M2.0 × 2.5 screws (1) that secure the touchpad bracket to the computer. 2. Remove the bracket from the computer (2). 3. Lift the tape that covers the touchpad (1). 4. Disconnect the cable from the ZIF connector on the touchpad (2). 5. Remove the protective shielding from - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 40
this procedure to install the fingerprint sensor board. To remove the fan, use this procedure and illustration. 32 Chapter 5 Removal and replacement procedures for authorized service provider parts - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 41
Table 5-7 Fan description and part number Description Fan assembly Spare part number M02014-001 Before removing the fan, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 26). 2. Remove the bottom cover (see Bottom cover on page 26). 3. Remove the - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 42
heat sink, remove the four Phillips M2.0 × 2.0 screws (1), and then remove the heat sink from the computer (2). 34 Chapter 5 Removal and replacement procedures for authorized service provider parts - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 43
illustration shows the replacement thermal material locations. Thermal paste is used on one system board component (1) and on the heat sink area (2) that services it. Reverse this procedure to install the heat sink. Lock bracket To remove the lock bracket, use this procedure and illustration. Table - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 44
on the USB board (2). 3. Remove the four Phillips M2.0 × 2.0 screws (3) that secure the board to the computer. 36 Chapter 5 Removal and replacement procedures for authorized service provider parts - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 45
4. Remove the board from the computer (4). Reverse this procedure to install the USB board. USB door To remove the USB door, use this procedure and illustration. Table 5-11 USB door description and part number Description USB door, left USB door, right Spare part number M00444-001 M00445-001 - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 46
-001 M57275-001 M57277-001 M57276-001 M57272-001 M57274-001 M57273-001 M57271-001 M57270-001 38 Chapter 5 Removal and replacement procedures for authorized service provider parts - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 47
Table 5-12 System board descriptions and part numbers (continued) Description Spare part number Intel Pentium G7505 processor, 8 GB of system memory, 64 GB of eMMC memory (models with a fingerprint sensor) M57280-001 Intel Celeron 6305 processor, 8 GB of system memory, 64 GB of eMMC memory ( - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 48
(3). 3. Disconnect the display cable (4). 4. Remove the display cable from the clip at the top of the chassis (5). 40 Chapter 5 Removal and replacement procedures for authorized service provider parts - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 49
5. Remove the camera cable and one antenna cable from their routing at the top of the chassis (6). 6. Remove the four Phillips M2.5 × 4.5 screws (1) that secure the display to the computer. 7. Open the computer to open the hinges (2). 8. Separate the computer from the display (3). 9. If you need to - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 50
from behind the display panel (4). You must pull the tape multiple times before it is completely removed. 42 Chapter 5 Removal and replacement procedures for authorized service provider parts - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 51
c. Rotate the display panel over and place it next to the display enclosure. Display panels are available as the following spare part numbers: M57293-001: FHD, nontouch M57294-001: FHD, touch M57295-001: HD, nontouch M57296-001: HD, touch d. Disconnect the cable from the panel (1). e. Remove the - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 52
module to remove it from the display back cover (1), and then remove the cable and module assembly (2). 44 Chapter 5 Removal and replacement procedures for authorized service provider parts - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 53
b. Lift the latch on the reverse ZIF connector on the camera module (1), and then disconnect the cable (2). The camera module is available as spare part number M00442-001. The camera cable is available as spare part number M12614-001. 14. If you need to remove the hinges from the display: a. Remove - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 54
bracket. b. Remove the bracket from the display (2). The bracket is available as spare part number M00700-001. 46 Chapter 5 Removal and replacement procedures for authorized service provider parts - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 55
16. If you need to remove the antenna cables, remove the cables from the clips on the inside of the cover (1), and then peel the antennas off the cover to remove them (2). Antenna cables are available as spare part number M00435-001. The display back cover with dual antennas is available as spare - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 56
-271 United Kingdom -251 United States Spare part number -BG1 -AB1 -281 -141 -541 -BD1 -031 -001 48 Chapter 5 Removal and replacement procedures for authorized service provider parts - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 57
creating a backup, go to http://www.support.google.com. Resetting A factory reset erases "Reset this Chrome device." ● You are having problems with your user profile or settings. ● You restarted then select Continue. 4. Follow the on-screen instructions to reset your computer, and sign in with - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 58
a system recovery on your computer, go to http://www.support.google.com. Before you begin the recovery process, you need Apps window, select Recovery, and then select Get started. 4. Follow the on-screen instructions to create the recovery media. NOTE: All data and partitions on your recovery media - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 59
or recovery After a reset or recovery is complete, perform the initial setup process. For details about setting up the computer, go to http://www.support.google.com. Erasing and reformatting the recovery media When you create recovery media, the USB flash drive or SD memory card is formatted as - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 60
7 Specifications This chapter provides specifications for your computer. Computer specifications This section provides specifications for your computer. When traveling with your computer, the computer dimensions and weights, as well as input power ratings and operating specifications, provide - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 61
Table 7-2 Display specifications Active diagonal size Resolution Surface treatment Brightness Viewing angle Backlight Display panel interface Metric 35.6 cm 1920 × 1080 (FHD) 1368 × 766 (HD) Antiglare 250 nits UWVA (FHD panels) SVA (HD panels) WLED eDP U.S. 14.0 in 35.6 cm (14.0 in) display - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 62
nonvolatile memory that can contain personal data after the system has been turned off and the hard drive has been removed, use these instructions. HP business computer products that use Intel®-based or AMD®-based system boards contain volatile DDR memory. The amount of nonvolatile memory present - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 63
Utilities. iv. Under Utilities, select Disk Sanitizer, select the hard drive with the data that you want to clear, and then follow the on-screen instructions to continue. NOTE: The amount of time it takes for Disk Sanitizer to run can take several hours. Plug the computer into an AC outlet - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 64
usage Use this table to troubleshooting nonvolatile memory usage. Table 8-1 Troubleshooting steps for nonvolatile memory Embedded Controller. firmware, and critical computer configuration data for select platforms that support HP Sure Start. For more information, see Using HP Sure Start - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 65
Table 8-1 Troubleshooting steps for nonvolatile memory usage (continued) Nonvolatile memory type to http://www.hp.com/ support. Select Identify your product for manuals and specific product information, and then follow the on-screen instructions.) Stores Management Engine Code, Settings - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 66
-screen instructions. 2. What is a UEFI BIOS, and how is it different from a legacy BIOS? The Unified Extensible Firmware Interface (UEFI) BIOS is an industry-standard software interface between the platform firmware and an operating system (OS). It replaces the older BIOS architecture but supports - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 67
esc. b. Select the Security menu, select Secure Boot Configuration, and then follow the on-screen instructions. c. At the Secure Boot Configuration window, select Secure Boot, select Clear Secure Boot Keys, Sure Start, go to http://www.hp.com/support. Using HP Sure Start (select products only) 59 - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 68
9 Power cord set requirements This chapter provides power cord requirements for countries and regions. The wide-range input feature of the computer permits it to operate from any line voltage from 100 V ac to 120 V ac, or from 220 V ac to 240 V ac. The three-conductor power cord set included with - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 69
Table 9-1 Power cord requirements for specific countries and regions (continued) Country/region Accredited agency Applicable note number India BIS 1 Israel SII 1 Italy IMQ 1 Japan JIS 3 Netherlands KEMA 1 New Zealand SANZ 1 Norway NEMKO 1 People's Republic of China CCC 4 - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 70
10 Recycling When a nonrechargeable or rechargeable battery has reached the end of its useful life, do not dispose of the battery in general household waste. Follow the local laws and regulations in your area for battery disposal. HP encourages customers to recycle used electronic hardware, HP - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 71
product description 2 keyboard with top cover spare part numbers 47 keys esc 8 search 9 L labels Bluetooth 10 regulatory 10 serial number 10 service 10 wireless certification 10 WLAN 10 lights AC adapter and battery 4, 6 camera 7 lock bracket removal 35 spare part number 35 M memory nonvolatile - HP Pro c640 G2 Chromebook Enterprise | Maintenance and Service Guide - Page 72
, identifying 9 security cable slot, identifying 6 serial number, computer 10 service labels, locating 10 solid-state drive removal and replacement 29 spare part computer 52 display 52 hard drive 52 static electricity 18, 19 support information 24 system board removal 38 spare part numbers 38 system
Maintenance and Service Guide
SUMMARY
This guide provides information about spare parts, removal and replacement of parts, security, backing up, and more.