Need urgent help with CPU temp

[voss]

Hi all,

I have just put together my new system and I am having some major CPU heat problems Here are the specs:

I have an Asus A7N8X Delux Rev.2 with the 1005 BIOS
AMD Athlon XP Barton 2500+ (AXDA2500DKV4D AQXDA 0320MPMW)
Thermaltake Volacano 7+
2x512MB PC3200 Infineon DDR
ATi Radeon 9500@9700
120GB Maxtor 8MB cache HDD

My problem is that the CPU temperature in the BIOS is a LOT higher than what Asus Probe shows, by up to 20 degrees celsius!! When I first booted the PC it gave me a setting of 11x100. The temps in the BIOS were 30 for the mb and 55 for the CPU. I then set it up to use the standard 11x166 but he temp instantly went sky high to 65 and up... and the AsusC.O.P. kicked in before windows loaded. It would then turn the PC off in a matter of seconds!

I checked the heatsink and although it was on solidly I took it off again just to be sure. I put the thermal paste on again, a thin layer, and carefully attached the heatsink back on. It is on very securly, no movement between the heatsink and CPU. I have attached dozens of heatsinks before and I know what I'm doing.

But still the same results... the BISO CPU temp is way higher than the Probe's. I installed Windows at the 1100MHz setting, and am currently using it. All my games work and the CPU doesn't go over 50 on full load. It's at 35-40 while I'm in Windows and doing nothing. The motherboard temp is 28-30, both in Probe and in the BIOS. When I change the speed of the Volcano's fan it affects the temp just as expected, at the highest fan speed it's about 5-7 degees cooler than at the lowest.

Does anyne know what's going on here? I have flashed my BIOS to versions 1003 and 1005 with no change. Whenever I set the CPU speed to the default 11x166 it just shuts down. The CPU temps go over 70... instantly! From 55-60 at 1100MHz, to 70+ at 1833MHz in a matter of seconds!!! Surely this is a faulty CPU?

Please any advise will be very appreciated.

 

[voss]

Thanks to some other help and some more surfing on forums I found my problem.... I stupidly put the heatsink on backwards

It's on properly now and it works fine. Still playing around trying to get the best overclock...

 

[pspada]

You are VERY lucky you did not roast your chip. Offer a sacrifice to the overclocking gods for your good fortune!

 

[Overkiller]

my heatsink /fan combo fell off my tbird 1.2 ghz. and it hit over 90C for a few minutes..puppy still runs...@ 130 mhz fsb instead of 133 though..lol

 

[moonshinemadness]

Fan fell off my TBird and nearly roasted the poor chip.....works fine though

 

[NesuD]

Originally posted by: pspada
You are VERY lucky you did not roast your chip. Offer a sacrifice to the overclocking gods for your good fortune!

No thank AMD for making the overheat protection circuit part of their motherboard spec for Athlon xp cpu's and then twisting the mboard makers arms until they implemented it. The Asus cop saved your chip. Did exactly what it was put there to do.

 

[voss]

You're absolutely right, AMD saved my CPU. Thanks AMD

But here is a more pressing issue. Now that I have got MBM5 installed I can see exactly whats happening... so here goes:

I have put the CPU to stock settings of 11x166=1833MHz and 1.65v, with RAM in sync. I have taken the HS off for the 4th time now, put a new brand of thermal paste on in a thin layer and put it all back together. It works as per usual temps so I presume the last two HSF mountings were both good. Now for the temps.

With the Volcano's fan at medim (5200rpm) I get idle temps of Diode: 50, Socket: 47, Case: 28-30 (only seems to read even numbers). The ambient room temperature is about 25 or over... middle of summer here.

After running 3DMark2001 the diode is at 58, socket 52, case 30. Prime95 sends the diode instantly to 58 and climbs up to 64!! Socket shows 54-56 and case till 30. A few other CPU intensive games also keep the temps ta this level.

Well from what it seems the Asus board has the C.O.P. setup for 70 or just over, so even on default speeds I am only a few degrees from the limit. Can this be normal? Is the Volcano 7+ really this bad or is something else wrong? Is it possible to damage the CPU by having it go up to 70 a few times, and that now it runs hotter at all speeds?

So what should I do? Is the CPU worn out or is the HSF the culprit? Any advise would be great.