•  After replacing the system I/O board or processor board, always update the server with the latest firmware 
or restore the pre-existing firmware.
Firmware and driver download: You might need to update the firmware or driver after replacing a 
component. 
•  Go to 
https://datacentersupport.lenovo.com/products/servers/thinksystem/sr655v3/7d9e/downloads/driver- 
list/
to see the latest firmware and driver updates for your server.
•  Go to 
“Update the firmware” on page 190 for more information on firmware updating tools.
Watch the procedure 
A video of this procedure is available at YouTube: 
https://www.youtube.com/playlist?list=PLYV5R7hVcs- 
BashWCNZQEDP7o3EohXPEV
. 
Procedure
Step 1.  Touch the static-protective package that contains the new part to any unpainted surface on the 
outside of the server. Then, take the new part out of the package and place it on a static-protective 
surface.
Step 2.  Install the fan board and the PIB onto the processor board. See 
“Install the fan board” on page 61
and “Install the PIB” on page 96.
Step 3.  Depending on your need, do one of the following: 
•  If you are going to replace the system I/O board and reuse the processor board, install a new 
system I/O board onto the processor board.
•  If you are going to replace the processor board and reuse the system I/O board, install the 
existing system I/O board onto a new processor board.
Figure 103. Installing the system I/O board onto the processor board
a. 
Align the system I/O board with the connector on the processor board, and use both hands 
to push the system I/O board and slightly insert it into the connector. 
Note: To prevent the contact of the system I/O board from damage, ensure that the system I/ 
O board is aligned correctly with the connector on the processor board, and remains as 
horizontal as possible during the insertion. 
138 ThinkSystem SR655 V3 User Guide