Cooling Unit Components
The system has 3.5-inch fan modules with two fans in each module. The following table
lists the system cooling unit components.
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/SYS/MB/FM[0-3]
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FRU
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Fan module FRU
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/SYS/MB/FM[0-3]/F[0-x]
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FRU
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Individual fan
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/SYS/MB/FM[0-3]/PRSNT
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Discrete sensor
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Fan module is present.
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01h-ENTITY_ABSENT
02h-ENTITY_PRESENT
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/SYS/MB/FM[0-3]/F[0-x]/TACH
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Threshold sensor
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Fan module fan speed
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RPM
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/SYS/MB/FM[0-3]/SERVICE
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Indicator
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Fan Service Required LED
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Color: Amber
Location: Mainboard
Off: Normal
On: Fan module was diagnosed as faulty.
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