Lenovo ThinkPad Edge E520 Hardware Maintenance Manual - Page 84

PCI Express Mini Card for wireless WAN for ThinkPad Edge E520 models

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Note: If the test shows that the HDD Active Protection System is not functioning, be sure to document the drop in any reject report, and replace the system board. • Avoid rough handling of any kind. • At every point in the process, be sure not to drop or stack the system board. • If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or a corrugated conductive surface. If the system supports PC-Doctor for DOS, after replacing the system board, run PC-Doctor for DOS to make sure that the HDD Active Protection System still functions. The procedure is as follows: 1. Place the computer on a horizontal surface. 2. Run Diagnostics ➙ ThinkPad Devices ➙ HDD Active Protection Test. Attention: Do not apply physical shock to the computer while the test is running. For access, remove these FRUs in order: • "1010 Battery pack" on page 58 • "1020 ExpressCard blank bezel" on page 59 • "1030 Optical drive or travel cover" on page 60 • "1040 Bottom slot cover" on page 61 • "1060 Hard disk drive assembly" on page 63 • "1070 PCI Express Mini Card for wireless LAN" on page 64 • "1080 PCI Express Mini Card for wireless WAN for ThinkPad Edge E520 models" on page 66 • "1080 mSATA solid state drive for ThinkPad Edge E520 models" on page 67 • "1090 Backup battery" on page 68 • "1110 Keyboard" on page 69 • "1120 Top case assembly" on page 71 • "1130 Bluetooth daughter card" on page 74 • "1140 Express sub card" on page 75 • "1150 Speaker assembly" on page 76 Removal steps of system board and fan assembly The following components soldered on the top side of the system board are extremely sensitive. When you service the system board, avoid any kind of rough handling. a CPU b Platform Controller Hub (PCH) c Graphics Processing Unit (GPU) (Discrete Graphics chip) For models with a discrete thermal module 78 Hardware Maintenance Manual

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Note:
If the test shows that the HDD Active Protection System is not functioning, be sure to document the drop
in any reject report, and replace the system board.
•
Avoid rough handling of any kind.
•
At every point in the process, be sure not to drop or stack the system board.
•
If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or a corrugated
conductive surface.
If the system supports PC-Doctor for DOS, after replacing the system board, run PC-Doctor for DOS to make sure that
the HDD Active Protection System still functions. The procedure is as follows:
1. Place the computer on a horizontal surface.
2. Run
Diagnostics
➙
ThinkPad Devices
➙
HDD Active Protection Test
.
Attention:
Do not apply physical shock to the computer while the test is running.
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 58
•
“1020 ExpressCard blank bezel” on page 59
•
“1030 Optical drive or travel cover” on page 60
•
“1040 Bottom slot cover” on page 61
•
“1060 Hard disk drive assembly” on page 63
•
“1070 PCI Express Mini Card for wireless LAN” on page 64
•
“1080 PCI Express Mini Card for wireless WAN for ThinkPad Edge E520 models” on page 66
•
“1080 mSATA solid state drive for ThinkPad Edge E520 models” on page 67
•
“1090 Backup battery” on page 68
•
“1110 Keyboard” on page 69
•
“1120 Top case assembly” on page 71
•
“1130 Bluetooth daughter card” on page 74
•
“1140 Express sub card” on page 75
•
“1150 Speaker assembly” on page 76
Removal steps of system board and fan assembly
The following components soldered on the top side of the system board are extremely sensitive. When you
service the system board, avoid any kind of rough handling.
a
CPU
b
Platform Controller Hub (PCH)
c
Graphics Processing Unit (GPU) (Discrete Graphics chip)
For models with a discrete thermal module
78
Hardware Maintenance Manual