3Com DK8X user manual CPU/ System FAN Connectors

DK8X Motherboard

CPU/ SYSTEM FAN CONNECTORS

There are seven 3-pin fan connectors in the Mainboard motherboard. Two fans are used for CPU0 and CPU1; five are for system and front. These connectors support cooling fans of 500mA (6W) or less. Depending on the fan manufacturer, the wiring and plug may be different. Connect the fan’s plug to the Mainboard with respect to the polarity of the fan connector. CPU0_FAN, CPU1_FAN and SysFAN0 support Smart Fan function.

WARNING

The CPU and/or motherboard will overheat if there is not enough airflow across the CPU

and onboard heatsink. Damage may occur to the motherboard and/or the CPU fan if these

pins are incorrectly used. These are NOT jumpers, do NOT place jumper caps over these

pins.

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2-20 Hardware Installation