Attention: 
•  Read 
“Installation Guidelines” on page 35 and “Safety inspection checklist” on page 36 to ensure that you 
work safely.
•  Power off the server and peripheral devices and disconnect the power cords and all external cables. See 
“Power off the server” on page 44. 
•  Prevent exposure to static electricity, which might lead to system halt and loss of data, by keeping static- 
sensitive components in their static-protective packages until installation, and handling these devices with 
an electrostatic-discharge wrist strap or other grounding system.
Watch the procedure 
A video of this procedure is available at YouTube: 
https://www.youtube.com/playlist?list=PLYV5R7hVcs- 
CTkyVDu-5Lhy1r9G-4PQGl
.
Procedure
Step 1.  Remove the top cover. See 
“Remove the top cover” on page 150.
Step 2.  If the security bezel is installed, remove it. See 
“Remove the security bezel” on page 127.
Step 3.  Disconnect the front I/O cables from the processor board.
Step 4.  Remove the front I/O module. 
Figure 31. Remove a front I/O module on 2.5'' 
chassis
Figure 32. Remove a front I/O module on 3.5'' 
chassis
a. 
Remove the screws that secure the front I/O module.
b. 
Slide the front I/O module out of the front chassis.
After you finish
If you are instructed to return the component or optional device, follow all packaging instructions, and use 
any packaging materials for shipping that are supplied to you.
Install the front I/O module
Use this information to install the front I/O module.
About this task
62 ThinkSystem SR645 V3 User Guide