Lenovo ThinkPad E555 - Manual (Page 84)

For access, remove these FRUs in order:
•
“1020 Battery pack” on page 66
• “1030 Large bottom cover” on page 67
• “1040 Small bottom cover” on page 68
• “1050 Optical drive or optical-drive bay bezel” on page 69
• “1060 Memory module” on page 70
• “1070 Hard disk drive assembly or solid-state drive assembly” on page 70
• “1080 Wireless LAN card” on page 72
• “1090 Coin-cell battery” on page 73
• “1110 Keyboard” on page 73
• “1120 Keyboard bezel assembly” on page 75
Removal steps of the system board assembly
Note: The system board of the computer that you are servicing might be different from the one in the
following illustrations.
Attention: 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 Accelerated Processing Unit (APU)
b Fusion Controller Hub (FCH)
c Graphics Processing Unit (GPU)
For models with a discrete thermal module
c b
a
For models with an integrated thermal module
b
a
78 Hardware Maintenance Manual