Abit IP35 Pro CPU Fan Control

yipyipboo · 29 Sep 2007 at 16:24

I have the ip35 pro and a tuniq tower 120 cooler and for the last few days the cpu fan seems to be at 100% all the time. CPU temps are fine at <30 degC.

Previously i would hear it briefly at beginning of bootup and then it would slow down only speeding up again when the cpu was being used intensively.

I have tried messing with the uguru program both within the bios and windows and have also reset the bios. The fan speed is currently reported as 2100 rpm at the moment (it should be about 540 rpm and silent!)

The noise of it constantly on is really starting to aggravate me!
Any ideas please! :confused:

seanABIT · 29 Sep 2007 at 21:09

Is the fan connector 3 or 4 wires?

yipyipboo · 29 Sep 2007 at 22:06

three wires

seanABIT · 29 Sep 2007 at 22:25

Enter the bios and turn off the shut down & and alarm for the CPU fan. Then power off the board and reconnect the fan to another header i.e. AUXFAN1.

Now go back into the bios uguru> abitEQ> FanEQ control> 1st FANEQ Group> change the AUX1 reference temp to CPU and adjust the high & low settings.

You will now be able to manage the fan speed.

yipyipboo · 29 Sep 2007 at 22:31

cheers for that, i'll give it a whirl tomorrow. Any particular reason why its doing this?

seanABIT · 29 Sep 2007 at 22:36

The CPU fan header can only control 4 wire fans. There is a bios option on the standard IP35 to change it from 4 to 3 but not on the PRO.

Sly · 29 Sep 2007 at 23:05

sorry to hijack your thread yipyipboo,

ive just got the ip35 pro aswell, after eventually getting my 4x1 gig ram to work in it(dunno how).

problem now is my cpu temp just shows 0.0 in the bios and the uguru software :confused:

any ideas guys

RJC · 29 Sep 2007 at 23:12

seanABIT said:
The CPU fan header can only control 4 wire fans. There is a bios option on the standard IP35 to change it from 4 to 3 but not on the PRO.

I am running the IP35 PRO with water cooling and basicaly Ive got one of my radiator fans plugged into the fan header for the CPU and this is being controled ok.

Rob

yipyipboo · 30 Sep 2007 at 14:37

seanABIT said:
The CPU fan header can only control 4 wire fans. There is a bios option on the standard IP35 to change it from 4 to 3 but not on the PRO.

In that case why has it been okay for the last few months? It was definately under some sort of speed control as it was only speeding up when i played MOH. 20 secs or so after quitting that it would slow down again.

edit: just noticed on page 1-7 in the manual in mentions selecting 'cpu fan type', but this doesn't actually feature in the bios (if it is I can't find it!).

seanABIT · 30 Sep 2007 at 16:23

Not sure why that is in the manual for the Pro version. As it refers to the IP35 as I mentioned before.

I can't explain why it was working before or why it stoped working.

yipyipboo · 30 Sep 2007 at 20:58

seanABIT said:
Enter the bios and turn off the shut down & and alarm for the CPU fan. Then power off the board and reconnect the fan to another header i.e. AUXFAN1.

Now go back into the bios uguru> abitEQ> FanEQ control> 1st FANEQ Group> change the AUX1 reference temp to CPU and adjust the high & low settings.

You will now be able to manage the fan speed.

Hi Sean

Did what you suggested but the fan still seems to be at full speed. Have I set it up correctly?

edit

Ta

yipyipboo · 1 Oct 2007 at 22:42

In an effort to curb the noise I have fitted the rheostat that came with the tuniq tower. The lowest it sets the fan to is 1020rpm according to uguru, and all is quiet again

Can anyone recommend a 120mm fan suitable for fitting in the cooler that can be controled by the motherboard? Would something like this be suitable?

http://www.overclockers.co.uk/showproduct.php?prodid=FG-006-SH&groupid=701&catid=57&subcat=4

the cpu fan header on the Abit IP35 Pro is this:-