Cooling Fan Power
Power for the internal PSU cooling fans (zone 0) is provided by the PSUs. Power for the fan modules (zones 1-4) is supplied by CMOD0, CMOD2, CMOD4, and CMOD6.
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The chassis cooling fans operate only when the chassis is in Main power mode (see Power Control, Shutdown, and Reset States).
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The PSU fans operate when the system is in Main power or Standby power mode.
The following table lists the CMODs and the fan modules to which they supply power.
CMOD | Fan Modules Powered |
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CMOD0 |
FM0 and FM1 |
CMOD2 |
FM2 and FM3 |
CMOD4 |
FM4 and FM5 |
CMOD6 |
FM6 and FM7 |
Note:
The fan power connectors for CMODs in slots 1, 3, 5, and 7 are not used.