Lenovo ThinkPad Edge E431 Hardware Maintenance Manual - Page 94

Platform Controller Hub PCH, Graphics Processing Unit GPU

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Page 94 highlights

• "1050 Optical drive or blank bezel" on page 68 • "1060 Memory modules" on page 68 • "1070 Hard disk drive assembly or solid-state drive assembly" on page 69 • "1080 Wireless WAN card or M.2 solid-state drive" on page 71 • "1090 Wireless LAN card" on page 73 • "1100 Backup battery" on page 74 • "1110 Thermal fan assembly" on page 75 • "1120 Keyboard" on page 77 • "1130 Keyboard bezel" on page 83 • "1140 Microprocessor" on page 86 Removal steps of the system board 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 Microprocessor b Platform Controller Hub (PCH) c Graphics Processing Unit (GPU) For models with a discrete thermal module a b c For models with an integrated thermal module a b 88 Hardware Maintenance Manual

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•
“1050 Optical drive or blank bezel” on page 68
•
“1060 Memory modules” on page 68
•
“1070 Hard disk drive assembly or solid-state drive assembly” on page 69
•
“1080 Wireless WAN card or M.2 solid-state drive” on page 71
•
“1090 Wireless LAN card” on page 73
•
“1100 Backup battery” on page 74
•
“1110 Thermal fan assembly” on page 75
•
“1120 Keyboard” on page 77
•
“1130 Keyboard bezel” on page 83
•
“1140 Microprocessor” on page 86
Removal steps of the system board
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
Microprocessor
b
Platform Controller Hub (PCH)
c
Graphics Processing Unit (GPU)
For models with a discrete thermal module
a
c
b
For models with an integrated thermal module
a
b
88
Hardware Maintenance Manual