System Board - Lenovo ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual

Removal steps

System board

Prerequisite
Before you start, read Generic Safety and Compliance Notices, and print the following instructions.
Avoid contact with hot components inside the computer. During operation, some components become hot
enough to burn the skin. Before you open the computer cover, turn off the computer, disconnect power, and
wait approximately 10 minutes for the components to cool.
The heat-sink-and-fan assembly and microprocessor might be very hot. Before you open the computer
cover, turn off the computer and wait several minutes until the computer is cool.
For access, do the following:
1. Remove these parts in order, if any:
• Remove the computer stand. See "Computer stand" on page 49.
• Remove the rear cover. See "Rear cover " on page 50.
• Remove the system board shielding. See "System board shielding" on page 52.
• Remove the M.2 solid-state drive and thermal pad. See "M.2 solid-state drive and thermal pad" on
page 54.
• Remove the Wi-Fi card. See "Wi-Fi card" on page 55.
• Remove the memory module and thermal pad. See "Memory module and shielding" on page 57.
• Remove the heat sink and gaskets. See "Heat sink and gaskets" on page 58.
2. Record the cable routing and cable connections, and then disconnect all cables from the system board.
See "System board" on page 48.
Notes:
• Each computer has a unique Vital Product Data (VPD) code stored in the nonvolatile memory on the
system board. After you replace the system board, the VPD must be updated.
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ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual