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Figure 24. Disconnect the EDP cable, remove eight screws, and remove the system board
Note: Both solid-state drive screws should be removed.
Screw specifications
M2 × L3
M2 × L8.5
Go to
https://support.lenovo.com/partslookup
replacement part:
System board
Use a Golden Key U1 tool to flash-write key id information
After replacing the system board and re-assembling the computer, use a pre-made Golden Key U1 tool to
start the computer and flash-write the serial number (SN), machine type (MT), product name (PN), and UUID
to the new system board.
The Golden Key U1 tool is prepared by running the U1 Update software on a FAT32-formatted USB thumb
drive. Go to
https://support.lenovo.com/us/en/solutions/ht102004
and use a Golden Key U1 tool.
Remove the Type-C bracket
Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case" on page 30
"Remove the DC-in bracket" on page 33
"Remove the Wi-Fi card" on page 34
"Remove the 2242 solid-state drive (for selected models)" on page 36
"Remove the 2280 solid-state drive (for selected models)" on page 36
"Remove the DIMM shielding" on page 38
Number of screws
7
1
to look up the Lenovo part numbers of the following
for detailed instructions on how to create
Torque
1.85 ± 0.15 kgf-cm
1.85 ± 0.15 kgf-cm
.
Chapter 4
Removing a FRU or CRU
45
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