Removing and replacing the system board assembly
Attention
Do not open your computer or attempt any repair before reading the “Safety notices” in the Quick Reference that was included with your computer. If you no longer have this copy of the Quick Reference, you can obtain one online from the IBM Web site at http://www.ibm.com/pc/support.
To remove and replace the system board assembly, do the following:
1.Turn off the computer and allow the computer to cool for one hour.
2.Open the cover. Go to “Opening the cover” on page 1.
3.Pivot the drive bay assembly upward to gain access to the system board.
4.While holding the rear of the computer chassis down, pull upward on the handle provided to remove the PCI riser and any adapters that are currently
Replacing customer replaceable units (CRUs) 7
