F - J20 Power supply fan connector
      Show Part Numbers

J20 Power supply fan connector   A keyed, 3-pin connector from the power supply connects here and allows the computer software to control the fan, turning it on or off, thus overriding the power connector. The Fan Always On field overrides Advanced Power Management (APM) fan control. The APM fan control turns the fan off any time the computer enters a power-managed state. When set to the Yes option, the fan remains on anytime the computer is turned on or in an APM state. If SCSI devices are detected in the computer, the fan remains on.