Lenovo ThinkServer TS440 - Manual (Page 142)

Replacing the power conversion board
Attention: Do not open your server or attempt any repair before reading and understanding “Safety information”
on page iii and “Guidelines” on page 65.
This topic provides instructions on how to replace the power conversion board. This topic applies only to
server models that come with a RAID card installed.
Before you begin, print all the related instructions or ensure that you can view the PDF version on another
computer for reference.
Note: Depending on the model, your server might look slightly different from the illustrations in this topic.
To replace the power conversion board, do the following:
1. Remove all media from the drives and turn off all attached devices and the server. Then, disconnect all
power cords from electrical outlets and disconnect all cables that are connected to the server.
2. Remove the server cover. See “Removing the server cover” on page 67.
3. Locate the power conversion board. See “Server components” on page 23.
4. Record the cable routing and connection. Then, disconnect the power cables from the power
conversion board.
130 ThinkServer TS440 User Guide