Alan2273 Posted February 20, 2008 Report Share Posted February 20, 2008 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. Quote Link to comment Share on other sites More sharing options...
Boris Posted February 20, 2008 Report Share Posted February 20, 2008 Presumably the chassis fan reading is from the motherboard header to which is connected either your front (inlet) or your rear (exhaust) fan ?If it is a standard 80mm case fan then then they are both cheap and easy to replace.Info Quote Link to comment Share on other sites More sharing options...
Alan2273 Posted February 20, 2008 Author Report Share Posted February 20, 2008 I was assuming that the chassis fan was the small fan cooling the chipset, although i may be wrong.Just put speedfan on and that agrees with the BIOS. Quote Link to comment Share on other sites More sharing options...
Boris Posted February 20, 2008 Report Share Posted February 20, 2008 Presumably that this is what you have Alan ? - if so there don't look to be any fans on your mobo ?BoardZooms toOn zooming, it only seems to show heatsinks = passive cooling ?Unless there's a tiny one hidden under the gold "GIGABYTE" badge ? Quote Link to comment Share on other sites More sharing options...
Alan2273 Posted February 20, 2008 Author Report Share Posted February 20, 2008 Lookis like a new HSF. Quote Link to comment Share on other sites More sharing options...
Boris Posted February 20, 2008 Report Share Posted February 20, 2008 The CPU at 42c does seem a bit high ?My Athlon64 3000+ runs at a steady 27c with CPU fan speed of 4120 rpmMy Athlon64 4000+ runs at a steady 24c with CPU fan speed of 2960 rpmBoth with stock cooling Quote Link to comment Share on other sites More sharing options...
Alan2273 Posted February 20, 2008 Author Report Share Posted February 20, 2008 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. Quote Link to comment Share on other sites More sharing options...
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