Screw specifications Number of screws
M2 x 2.5 3
M2 x 3.5 2
Step 3. Remove the system board.
Figure 32. Remove the system board
Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following
replacement part:
System board
Remove the upper case (with keyboard)
Make sure the following FRU ( or CRU) has been removed.
“Remove the lower case” on page 28
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IdeaPad 3 (14", 05), IdeaPad 3 (15", 05), and IdeaPad 3 (17", 05) Hardware Maintenance Manual