Lenovo ThinkStation D20 - Manual (Page 29)

Replacing the power supply assembly
Attention: Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the ThinkStation Safety and Warranty Guide that came with your computer. To obtain a copy of the
ThinkStation Safety and Warranty Guide, go to:
http://support.lenovo.com
This section provides instructions on how to replace the power supply assembly.
To replace the power supply assembly:
1. Remove the computer cover. See “Removing the computer cover” on page 11.
2. Lay the computer on its side.
3. Locate the power supply assembly. See “Locating components” on page 7.
4. Disconnect the power supply cables 1 , 2 , 3 , and 4 from the system board connectors, adapter
cards, and all drives.
Figure 22. Power supply cable connectors
5. Remove the power supply cables from any cable clips and ties.
Chapter 3 . Installing options and replacing hardware 23