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overheating CPU and low voltages - newbie help needed

P

peegee

Member
hi all,

got problems with an overheating CPU - (P4 3.06 533) - MBM shows it rapidly shooting up to 75degrees and onwards within 3 mins of computer booting. fan and (intel stock) heatsink appear to be working ok. the fan is certainly turning and the sink is seemingly well seated - with a small amount of thermal paste. I've reseated it twice to be sure, but...

MBM also shows the 5v voltage to be VERY low: 2.94v ! could be an error in the reading as I'm amazed at this figure. the 12v is @11.49 the 3.3 @3.22. What runs off the 5v line anyways, and how can I check it with a multimeter? if its right, then what on earth is causing that drop?

I thought it was a faulty PSU and have put in a new one today, (Antec 480W) but it makes no difference to my two issues.

- are the two problems related? do I have a faulty heatsink and that's causing my CPU problems. but then whats up with that voltage figure?

not greatly experienced, but any help in cracking this gratefully received.

Gigabyte GA8INXP P4 533 3.06 2Gb RAM
coolermaster case
 
Are you sure that MBM works with the hardware monitor chip on your mobo. MBM is no longer being updated (and hasn't been for a good while now), so it may be a good time to switch. Try the one that came with your mobo. DL the newest version from the mobo mfr's web site. If you are not leaving any gap between your chip and the heatsink and the CPU fan is turning briskly, then you shouldn't be overheating to that degree.
. Check your voltages with a DMM to be sure - you would definitely be having problems if your +5 was really running under +3. Everything on your disk drives except the motors runs off +5. RAM voltage is regulated down from the +5, CPU voltage also if it isn't run off the +12 on your mobo, etc.

.bh.
 
MBM is probably wrong . . . when I use it, it always says I am at 80C idle for my setup and as you can see, that is highly unlikely considering what I have (Winchester with XP90C)

I would check out HMonitor or Everest just to make sure that it is in fact MBM that's the at fault . . . hell you could do it in BIOS too . . . the only reason though that you chip would go to 75C idle would be lack of contact between your HSF and your CPU which would be very bad indeed but I don't think that's the case here . . .
 
thanks for the help - one major issue was that I had two monitoring programs running (didn't trust just one, so I opened two) that threw the readings out of wack and gave me false alarms.
with just one running I am averaging 43 degrees, but gets as high as 60 degrees under load. is this ok? or is something still up with my heatsink seating?
if so is there another heatsink you could recommend that uses the same base as the intel one? (P4 socket 478) I don't want to remove my MB to change the heatsink, thanks
 
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