5 replies to this topic

[quantlinear]

Hello ,

If some of you could help me please , i've been getting an error when I start up my computer that says:

CPU Fan Error!
Press F1 to Resume

My motherboard is an American Megatrends running Windows 7 Just recently, every time I bootup it says "CPU Fan Error! Press F1 to continue" and it sounds like the fan is louder than usual. It boots and the computer seems to run fine after pressing F1. I get the error each time I start the computer, however. Anyone know how I could fix this problem?

Actually, I recently took out the fan and heat sink cleaned them and put them back in. The fan seems to be spinning but I don't know what else I changed than making it cleaner.


There's a fan header connector near it? I just remembered where I unplugged it and just plugged in the area the way it would fit. If it's not the fan header I've connected it to, what else could it be for? I do see the fan spinning...

I've had a look at my BIOS > Power settings and this is what it shows:

CPU Tempreture 32C/90.5F
MB Tempreture 26C/80.5F
CPU Fan Speed Options are: Ignored / N/A
CPU Q-Fan Control Options are: Disabled / Enabled
CPU Fan Profile Options are (currently set to ENABLED
CPU Fan Profile Options are (currently set to Optimal): Optimal / Silent / Performance Mode
Chassis Fan Speed Options are: Speed (3341 rpm) / Ignored
Power Fan Speed Options are: Speed (2481 rpm) / Ignored

Your help mostly appreciated .

Thanks

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Edited by quantlinear, 09 June 2011 - 11:18 AM.

[Alexander]

The fourth wire provides fan control (through pulse-width modulation) and is what your motherboard would read and use to control the fan, such as when the CPU temperature gets hotter, to raise the fan's speed. Your motherboard cannot read this, and will always be at 100%. This is safe, however you had likely plugged it in to a three pin slot and not a four pin slot, as the CPU fan requires four pins to provide this fan speed modulation.

[quantlinear]

Alexander, Thank you for the suggestion but the cable has been plugged to correct socket, what happened i have tried to replace it with other fan from a salvaged PC, but then it gave me the Error, however i have placed back the FAN which i have been getting the same Error, at the time i have only removed one plug and placed back one plug , so what could it be the problem then ?

[Alexander]

I am unsure then of what is wrong, that error is displayed purely due to the fact the BIOS cannot read the signal reading from the fan to modulate its speed, and thus must always run at maximum. Your temperature readings seem normal.

It could be a motherboard specific thing, you may wish to take this over to the appropriate place to ask (maybe tomshardware or a specific forum for your motherboard) to see if any others have shared this problem.

Hope I could provide insight.

[quantlinear]

Thanks, I will try the Forum you mentioned it. perhaps i will browse for others too. you are a good friend mate.Your advice mostly appreciated.

[Alexander]

quantlinear said:

Thanks, I will try the Forum you mentioned it. perhaps i will browse for others too. you are a good friend mate.Your advice mostly appreciated.

You are certainly welcome, it is not often I get to speak about hardware here!