[alan2273]

I will try and explain this as best I can.
The past few days my small computer has just lost the signal to the monitor.
I restarted by pressing the reset button and went into the BIOS and it showed the CPU fan reading as zero and the chassis fan as 2003rpm, as the CPU temperature was holding at 38c, I could not understand that.
As I watched the temperature of the chassis fan it slowly crept up over about 5 minutes to 1073rpm.
I booted into XP and ran Everest and it said the CPU fan was 2003rpm and the chassis fan was 1073rpm, so it is saying the two fans are opposite to what the BIOS reading says.
As the CPU temperature is constant I tend to believe Everest, is the chassis fan going, if so are they easy to replace?.
I built this computer about 18 months ago and it consists of, a Gigiabyte GA K8N51GMF-9 micro ATX motherboard, AMD 64 4000 processor, 2 X 512 Kingston PC3200 DDR memory, Nvidia 7600GT 256mb graphics card, 2 X 160 gb hard drives, Antec 400W power supply.

[Howard]

Fans whether chassis or cpu are very easy to replace, so no problem there.

You should also check that your video card`s fan(if it has one) is running properly.

Regards Howard

[Albert Lionheart]

The new Gigabyte boards have a 'green' fan managment option which matches fan speed to CPU temp. I have just built two systems and in both cases found your symptoms as a default settings. To see if this clears the problem, go into the BIOS and PC Health - clear the fan control setting and reset the green setting to off.

PS - and I have found Everest to be a liar!

[alan2273]

The problem has been solved.
The 7600GT card i had put in was modified with a Zalman fan and the screws that tighten the fan to the card stick out a bit on the back of the card.
It is in a Silverstone SSF case, and when I inserted the graphics card I could not see that one of the screws on the back of the card was pressing on the heatsink and lifting it of the motherboard on the one side.
After taking the graphics card out and using the onboard graphics, the problems have gone away.
As I only run Linux on this machine the onboard graphics are OK.
Thanks to all who replied to this thread.

[Howard]

That`s great news and thanks for letting us know.

I`ll mark this thread solved.

Regards Howard