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Replacing fans and fan modules
Your server comes equipped with several cooling fans and fan modules designed to provide
sufficient airflow to keep your server running without overheating. These include:
■ A system fan module with four, dual-rotor multi-speed fans to cool the processors,
the memory, and the second and third hard drive bays (redundant when running low
voltage processors).
■ A single-rotor system fan to cool components in the full-height PCI zone, the power
distribution board and the first hard drive bay.
■ Two dual-rotor power supply fans to cool the power supply modules (redundant in
the 1+1 power supply configuration)
System fans
System fans are monitored by the Gateway Server Manager (GSM), the mini-Baseboard
Management Controller (BMC), and the Intel Management Module (IMM). All three
reporting entities use a different numbering system to flag individual fans for attention.
Individual system fan module fan numbers are indicated on the top of the processor air
duct. The first number in the pair is for the fan closest to the front of the server.
Caution System fans are not hot-swappable. Before removing or replacing a
fan, you must first turn off the server and all peripheral devices
attached to the server, and remove the AC power cord(s) from the
power supply or wall outlet.
Processor fan
duct number
GSM Mini-BMC System
Event Log
IMM System Event
Log
1A 1A 1B 40
1B 1B 1C 41
2A 2A 1F 44
2B 2B 20 45
3A 3A 21 46
3B 3B 22 47
4A 4A 1D 42
4B 4B 1E 43
(none) PCI Fan 23 48
8510522.book Page 76 Wednesday, March 16, 2005 11:19 AM