Huawei EM820W, RT3090-1T1R Users Manual
Appendix A. CRU instructions
To replace the hard disk drive, do the following:
1Turn off the computer; then disconnect the AC adapter and all cables from the computer.
2 Close the computer display, and then turn the computer over. 3 Remove the battery pack.
4Remove the keyboard.
a. Remove the screws under the battery pack that secure the keyboard a.
1
1
1
b.Remove the keyboard b.
2
32
Appendix A. CRU instructions
5Remove the base cover.
a. Remove the screws that secure the base cover c.
3
3
3
b.Remove the base cover d.
3 3
3
3
3
3
3
4 |
3 |
33
Appendix A. CRU instructions
6 Remove the frame fixing screws.
5
5
7Release the cables from the cable guides of the hard disk drive frame and pull the tab in the direction shown by arrow g.
7
6
6
8 Take out the hard disk drive secured in the hard disk drive bay.
9 Remove the screws and detach the metal frame from the hard disk drive. 0 Attach the metal frame to a new hard disk drive; then tighten the screws.
APut the hard disk drive gently into the hard disk drive bay with the tab facing upwards and the connectors facing each other; then push it firmly into space.
B Reinstall the frame fixing screws.
C Reinstall the base cover and the keyboard.
D Reinstall the battery pack.
ETurn the computer over again. Connect the AC adapter and the cables to the computer again.
34
Appendix A. CRU instructions
Replacing memory --------------------------------------------------------------------------
You can increase the amount of memory in your computer by installing a double-data-rate three synchronous dynamic random access memory (DDR3 SDRAM)-available as an option-in the memory slot of your computer. DDR3 SDRAMs are available in various capacities.
Note: Use only the memory types supported by your computer. If you incorrectly install optional memory, or install an unsupported memory type, a warning beep will sound when you try to start the computer.
To install a DDR3 SDRAM, do the following:
1Touch a metal table or a grounded metal object to reduce any static electricity in your body, which could damage the DDR3 SDRAM. Do not touch the contact edge of the DDR3 SDRAM.
2Turn off the computer. Disconnect the AC adapter and all cables from the computer.
3 Close the computer display, and turn the computer over. 4 Remove the battery again.
5Remove the keyboard.
a. Remove the screws under the battery pack that secure the keyboard a.
1
1
1
35
Appendix A. CRU instructions
b.Remove the keyboard b.
2
6Remove the base cover.
a. Remove the screws that secure the base cover c.
3
3
3
36
Appendix A. CRU instructions
b.Remove the base cover d.
3 3
3
3
3
3
3
4 |
3 |
7If two SO-DIMMs are already installed in the memory slot, remove one of them to make room for the new one by pressing out on the latches on both edges of the socket at the same time. Be sure to save the old SO-DIMM for future use.
2
1 |
1 |
1 |
1 |
2
37
Appendix A. CRU instructions
8Insert the notched end of the DIMM into the socket.
Press the DIMM firmly, and pivot it until it snaps into place. Make sure that it is firmly fixed in the slot and does not move easily.
9 Reinstall the base cover and the keyboard.
0 Reinstall the battery.
ATurn the computer over, and reconnect the AC adapter and the cables to the computer.
To make sure that the SO-DIMM is installed correctly, do as follows: 1 Turn the computer on.
2Hold F2 during startup. The BIOS Setup Utility screen opens. The Total Memory item shows the total amount of memory installed in your computer.
38
Appendix A. CRU instructions
The following table provides a list of CRUs (Customer Replaceable Units) for your computer, and informs you of where to find replacement instructions.
|
Setup Poster |
User Guide |
|
|
|
AC adapter |
O |
|
|
|
|
Power cord for AC adapter |
O |
|
|
|
|
Battery |
O |
O |
|
|
|
Bottom access doors |
|
O |
|
|
|
Hard disk drive |
|
O |
|
|
|
Memory |
|
O |
|
|
|
Optical drive |
|
O |
|
|
|
39
Index
A |
|
AC adapter |
|
Using........................................................... |
9 |
B |
|
Battery |
|
Charging.................................................... |
9 |
Bluetooth |
|
Connecting.............................................. |
16 |
C |
|
Camera ..................................................... |
1, 13 |
E |
|
ExpressCard/34 slot ........................... |
15 |
F |
|
Function key combinations............ |
12 |
K |
|
Keyboard |
|
Using......................................................... |
12 |
M |
|
Meomory card reader ........................ |
14 |
Microphone |
|
Built-in ....................................................... |
1 |
O |
|
OneKey Rescue System button..... |
28 |
P |
|
Password |
|
Using ........................................................ |
20 |
S |
|
Security ......................................................... |
19 |
SIM card ....................................................... |
26 |
T |
|
Touchpad .................................................... |
11 |
U |
|
USB port .................................................. |
3, 15 |
V |
|
VeriFace |
|
Using ........................................................ |
19 |
40
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