Model 6E4 Fan Assembly
1 Model 6E4 8 Processor Cooling Fans Access Cover
2 Outer Side Cover 9 Processor Card Cooling Fan (Fan #2)
3 Service Access Cover 10 Adapter Cooling Fan Assembly (Fan #4)
4 Processor Fan Amber LED 11 Adapter Cooling Fan Assembly (Fan #3)
5 Finger Holes 12 PCI Adapter Fan Amber LED
6 Processor Card Cooling Fan (Fan #1) 13 PCI Adapter Cooling Fan Front Connector
7 Processor Fan Bottom Connector
Hot-Swap Fan Assembly Replacement
Notes:
1. On systems with Linux installed, you might be required to shut down and run AIX diagnostics to verify
the hot-swap fan repair.
2. This note applies only to systems running the AIX operating system.
If a fan assembly is being replaced for a redundant failure, after the service repair action is completed,
ask the customer to check the crontab file for any power/cooling warning messages. When a power or
cooling error is encountered, AIX adds an entry to the crontab file to ″wall″ a warning message every
12 hours, to alert or remind the customer of the problem. Replacing the faulty part does not clear this
crontab entry, so unless the crontab file is edited to remove this entry, the customer continues to be
reminded of the failure despite its having been repaired. Use the crontab -l command to read the
crontab file to determine if an entry exists. Use the crontab -e command to edit the file.
Documentation for the AIX operating system is available from the IBM Eserver pSeries Information
Center at http://publib16.boulder.ibm.com/pseries/en_US/infocenter/base. Select AIX documentation. The
AIX Documentation CD contains the base set of publications for the operating system, including
system-management and end-user documentation.
The hot-swap fan removal section has a procedure for processor cooling fans and PCI adapter cooling
fans. Select the removal procedure according to the hot-swap fan assembly you are servicing.
To replace your system’s hot-swap cooling fans, do the following:
464 Eserver pSeries 630 Model 6C4 and Model 6E4 Service Guide
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