[lm-sensors] 3 wire fan on 4 pin header

Charles c at catcons.co.uk
Mon Dec 5 18:23:52 CET 2011

On 05/12/11 21:45, Jean Delvare wrote:

> I can imagine that Asus came up with a way to detect whether the fan
> connector has 3 or 4 wires, and to route the PWM signal appropriately.
> I see no mention of this in the manual though.

Perhaps the same was done by Gigabyte on the GA-MA770-DS3 Rev 1.0 where
the same 3-wire S-Flex SFF21E was connected to the 4-pin SYS_FAN1 and
was controlled by fancontrol.

More information about the lm-sensors mailing list