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 |
|---|---|
|
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.