On 05/21/12 14:11, Guenter Roeck wrote: > On Mon, 2012-05-21 at 09:45 -0400, James wrote: >> I use the nct6776-isa-0290 >> Adapter: ISA adapter >> >> I have 3 fans: >> 1. The CPU fan (about 3300 RPM) >> 2. The rear case fan (about 1050 RPM) >> 3. The front case fan (about 1350 RPM) >> >> Do the fans in Power Supplies typically get monitored? >> >> I have 6 fan connectors: >> 1. Chassis fan connector (#12 on the motherboard) >> 2. Chassis fan connector (#15 on the motherboard) >> 3. Chassis fan connector (#2 on the motherboard) >> 1. CPU fan connector (#6 on the motherboard) >> 2. CPU fan connector (#5 on the motherboard) >> 1. Power fan connector (#10 on the motherboard) >> >> Maybe someone can see a pattern. >> >> 1. I plugged the rear case fan in #12 >> fan1 was 1060 RPM (the rear case fan probably) >> fan2 was 3300 RPM (the CPU fan probably) >> other fans reported 0 RPMs >> >> 2. I plugged the rear case fan in #2 >> all fans reported 0 RPM >> other fans reported 0 RPMs >> >> 3. I plugged the rear case fan in #12 and the front case fan in #15. >> fan1 was 1053 RPM (the rear case fan probably) >> fan2 was 3316 (the CPU fan probably) >> other fans reported 0 RPMs >> >> 4. I plugged the rear case fan in #10 and the front case fan in #12. >> fan1 was 1384 (the front case fan probably) >> other fans reported 0 RPMs > > Problem is that ASRock uses a GPIO based multiplexer to connect the > fans. So there is no 1:1 relationship between fans connectors and fan > attributes. The GPIO pins used vary from board to board. > > There are some possibilities to support this, such as to modify the > fancontrol script to also support setting gpio pins (if there is a gpio > driver for the given HW), or to somehow implement the necessary support > in the kernel. But those are all not really good solutions, and there > are some questions if it can be made to work reliably in the first > place. The AIDA64 folks tried to implement it but gave up (see > http://forums.aida64.com/index.php?/topic/386-asrocks-fan-controller-sensor-trouble/), which is not a good sign. > > Guenter > > > It looks like I can get two fans. So can I assume that there are two sensors for the 6 connectors and 3 are multiplexed for each sensor? Is it correct that there are GPIO pins to switch which fan the sensor reads from? _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
