remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Attention:
• Read
“Installation Guidelines” on page 29 and “Safety inspection checklist” on page 30 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 34.
• Remove any locking device that secures the server, such as a Kensington lock or a padlock.
• Place the server on its side with the cover up.
Procedure
Step 1. Make preparation for this task.
a. Remove the server cover. See
“Remove the server cover” on page 135.
Attention: The heat sink and processor could be very hot. To avoid burning yourself, wait for a
few minutes after turning off the server before you remove the server cover.
b. (For removing the front fan only) Remove the front bezel. See
“Remove the front bezel” on
page 87
.
Step 2. Disconnect the fan cable from the system board. See
Chapter 6 “Internal cable routing” on page
145
.
Step 3. If you are removing the rear fan for replacing or recycling the system board or removing the front
fan for replacing the thermal sensor, perform the following steps.
a.
Carefully squeeze the four rubber mounts with a pair of pliers and push the rubber mounts
inward.
b.
Slide the fan away from the chassis; then, lift it out of the chassis.
Figure 66. Removing the fan by squeezing rubber mounts
84 ThinkSystem ST45 V3 User Guide
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