Annoying ASRock fan control issue.

new boy

new boy

new boy

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I have an ASRock z97 Extreme4 board.

I had an issue where the CPU fans, would only stay at the lowest point in the curve I set in ASRock's fan control software (Fan-tastic) the 4 pin PWM fans worked fine connected to the Chassis1 header, but the 3 pin CPU fans connected to the 3 pin CPU2 header wouldn't. The only way to get them to work is to keep adjusting the fan curve and pressing apply, eventually it work start working and then would work until the PC was shut down.

Its obviously quite annoying having to run a CPU stress test and monitor fan RPM until it decides its going to work.

I tried getting rid of the software and just using the bios as it does exactly the same thing just without a graph showing you the curve. Surprisingly, it does exactly the same thing...

I then decided to try putting the 3 pin CPU fans, onto the 3 pin CHASSIS2 header, and the 4 pin case fans onto the the 4 pin CPU1 header.

The CPU fans worked great! they now follow the curve fine, but now the Chassis fans are stuck on the bottom of the fan curve :(

I'm 99% sure I will finally be able to fix this by putting the case fans back onto the CHASSIS1 header, but I had a look through the BIOS and I cant see any "disable CPU fan warning" option or anything like that, so no doubt the board is going to refuse to post when I do that.

So I'm probably going to have to try and dig out an old fan to put onto the CPU1/2 header and have it flapping around in the case...

Cant wait until its finally sorted so I can get on with my life, But I need to remove CPU cooler (D14) + graphics card and everything to access the headers, and I really cant be bothered to do that right now because I've already stripped the PC like 4 times over the last couple of days...

There is no point to this thread, but I feel a little better after venting my frustration :)
 
Problem now resolved (or workaround found at least).

The CPU fans in CHASSIS2 and case fans in CHASSIS1 with a random 3 pin fan plugged into CPU2 plan works great.

Random fan is cable tied to the bottom of my hard drive cage chilling out at 720RPM. Doubt its going to do much, but who knows, maybe it'll help prevent GPU heat soak.

ASRock should probably sort this issue out, as I dread to think what would happen if you put a 4790k @ stock with the stock Intel HSF and it didn't increase RPM with load, it would probably throttle.
 
That's strange. I'm having almost the opposite problem with the same board.

I have my fans set in BIOS to target temp 65°C and target level 1. Meaning my fans should tick away at their lowest level (about 550rpm in this case) and only start to ramp up after the CPU has exceeded 65°C.

My problem however, is that they start ramping up way earlier in the 50's. No matter what combination I try regarding plugging into different headers etc has resolved it.

I beginning to think it's AsRocks BIOS fan control is just a bit rubbish unfortunately.
 
That IS pretty strange...

Have you tried using Fan-Tastic? It overrides the BIOS settings, so might work.

You could try not using the CPU headers (though I presume 1 fan will still have to be plugged into it) as they are the ones I was having trouble with, the CHASSIS headers all work fine. EDIT - I see you already tried this, skim read fail.

If you install A-tuning, and look at the sensor tab, What does the temperature read on that? Does it follow what A-tuning reports?

For what its worth, I'm happy with how it all works now
 
How did you get Fan-Tastic to run on the z77 Extreme 4? I just get an error saying that "this is not for this platform," as it's for the Z77 OC Formula.

The Extreme 4's utility, Extreme Tuning Utility, is the exact same as the BIOS options I have.

Also it's reporting the the same CPU temps as HWInfo and Realtemp.

:EDIT: Haha, skim read fail #2! You're on z97 platform!
 
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I think ASRock fan control is just really spotty.

I can only get the BIOS to control fans on the CPU fan header; the chassis header just runs at full speed all the time, even though there's options in the BIOS to set a fan curve.
 
I think you might be right unfortunately. I started a thread on the AsRock support forum but no replies. I'm currently in the market for new fans and anxious to spend €150 on PWM fans if the mobo won't control them as required. I've no where to put a fan controller which is why I went PWM in the first place.
 
I shall count myself lucky I found a viable workaround then.

Its a shame as I love everything else about the board.
 
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