“Read the  
installation 
Guidelines” on 
page 79
“Power off 
the server for 
this task” on 
page 11
“ATTENTION:  
Static Sensitive Device  
Ground package before opening” 
on page 82
Before removing the backplane: 
1.  Remove the top cover. See “Remove the top cover” on page 89.
2.  Remove all the installed drives and drive fillers from the drive bays. See “Remove a hot-swap drive” on 
page 111 and “Install a hot-swap drive” on page 112.
To remove the backplane, complete the following step:
Watch the procedure. A video of the installation and removal process is available: 
•  YouTube: 
https://www.youtube.com/playlist?list=PLYV5R7hVcs-DTDY1lmpIPpJVOzo7dKq14
•  Youku: http://list.youku.com/albumlist/show/id_52222446.html
Note: There are two types of backplane for ten 2.5-inch hot-swap drives. The backplane you want to install 
might be different from the following illustration, but the installation method is the same.
Figure 114. Removal of backplane for ten 2.5-inch hot-swap drives
Step 1.  Grasp the backplane and carefully lift it out of the chassis.
Step 2.  Disconnect the cables from the backplane.
If you are instructed to return the old backplane, follow all packaging instructions and use any packaging 
materials that are provided.
Install the backplane for ten 2.5-inch hot-swap drives
Use this information to install the backplane for ten 2.5-inch hot-swap drives.
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ThinkSystem SR635 Maintenance Manual