for additional information about RAID operation and complete instructions for using ThinkSystem RAID
adapter.
Intrusion switch replacement
Follow instructions in this section to remove and install the intrusion switch. The intrusion switch informs you
that the server cover is not properly installed or closed by creating an event in the system event log (SEL).
•
“Remove the intrusion switch” on page 76
• “Install the intrusion switch” on page 78
Remove the intrusion switch
Follow instructions in this section to remove the intrusion switch.
About this task
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 42.
• 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-
BashWCNZQEDP7o3EohXPEV
.
Procedure
Step 1. Make preparation for the task.
a. If the server is installed in a rack, slide the server out on its rack slide rails to gain access to the
top cover, or remove the server from the rack. See
“Remove the server from rack” on page 43.
b. Remove the top cover. See
“Remove the top cover” on page 148.
c. Remove the system fans from the fan cage. See
“Remove a system fan” on page 142.
d. Remove the fan cage from the system board assembly. See
“Remove the system fan cage” on
page 146
.
Step 2. Rotate the fan cage by 90 degrees in the direction shown in the picture.
76
ThinkSystem SR655 V3 User Guide
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