IBM 310ED - Manual (Page 85)

System Board:
Important: After replacing the
system board, follow the instructions in “Setting Thermal
Sensor Threshold” on page 29.
Note: Make sure you use the correct screw when
replacing.
Step Size
(Quantity) Head and
Color Memo
1 M2 x 4L (2) Pan head,
silver
2 M2 x 4L (2) Pan head,
black w/ nylock
paste
3 M2 x 4L (2) Pan head,
silver w/ brackets
4 M2 x 4L (1) Pan head,
silver
ThinkPad 310, 310D, 310E, 310ED (2600) 61