Lenovo ThinkPad Edge E431 Hardware Maintenance Manual page 92

• "1050 Optical drive or blank bezel" on page 66
• "1060 Memory modules" on page 66
• "1070 Hard disk drive assembly or solid-state drive assembly" on page 67
• "1080 Wireless WAN card or M.2 solid-state drive" on page 69
• "1090 Wireless LAN card" on page 71
• "1100 Backup battery" on page 72
• "1110 Thermal fan assembly" on page 73
• "1120 Keyboard" on page 75
• "1130 Keyboard bezel" on page 81
• "1140 Microprocessor" on page 84
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
For models with an integrated thermal module
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Hardware Maintenance Manual
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a
b
c
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