Cooling Fan; Replacement - NEC express5800 A2010b User Manual

Chapter 2 Preparations
1.10

Cooling Fan

The server has two slots for installing cooling fans. Two cooling fans are factory installed.
You can replace cooling fans online (while the server is powered on).

1.10.1 Replacement

Replace the cooling fan when it fails.
(1)
Pulling Out Server from Rack
Mount/Unmount the cooling fan with the server being pulled out from the rack.
180
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A cooling fan can be replaced online (DC ON). Removing one cooling fan causes
Important
another cooling fan to rotate at a high speed. It retuns to normal rotation when a
cooling fan is installed to a slot where the failed cooling fan was removed.
•
In online replacement, abnormal temperature may be detected, which may cause
shutdown. Note the following:
– Do not remove 2 cooling fans at the same time.
– Replace a cooling fan within 60 seconds (from removal to installation).
Important Do not remove the cooling fan that is working normally.
Be sure to observe the following precautions to use the server safely. Failure to
observe the precautions may cause burns, injury, and property damage. For
details, refer to Safety precautions in Precautions for Use.
•
Do not pinch your finger.
•
Pay attention to hot surface.
•
Do not pull out the server from the rack when the rack is unstable.
•
Confirm that quake-proof construction is performed on the rack or
stabilizers are mount at front bottom of rack to prevent the rack from falling.
•
Do not leave more than one device being pulled out from the rack.
Express5800/A1040b, A2040b, A2020b, A2010b User's Guide
1. Installing / Removing Internal Options
CAUTION