Help with hot Athlon - I'm desperate

imported_FOF

Junior Member
Sep 21, 2004
3
0
0
Hi all

I've got a bit of a head scratcher here, and am wondering if anyone can help me figure this out.

I recently purchased an A64 3400 (2.4 ghz 512 k L2 cache, as opposed to the usual 2.2 ghz 1mb L2 cache) and have some serious heat issues. For the most part, at idle, my cpu temp sits at around 50 degrees Celsius, and from what I've heard about the A64, this is far too hot.
Once subjected to a few games or benchmark runs, the temp. can climb up to near on 70 Celsius.

I've resorted to disconnecting the cpu fan from the mobo and connecting it straight to a molex, so that it spins at a constant 4000 rpm, and added one of those ducting mods with two 80mm fans blowing cool air to the cpu fan. I've even in desperation connected a 120mm fan that blows additional air right over the heatsink. Yet, last night after about an hour of gaming, my cpu shut down after reaching a threshhold limit (which I set) of 68 Celsius. BTW, I'm running the fan+heatsink package I got with the processor, and therefor also the standard thermal pad as opposed to thermal paste.

The really odd thing is though that my tempratures aren't always so high, and I've seen tempratures as low as 32 Celsius at idle. Sometimes it's 38 C, sometimes 44C, other times 50 C, 55 C etc. etc. It's gotten to the point where I go "hmm, I wonder what my temp. will be today?"

I use two utilities for measuring my temp. - MSI Corecenter (which I got with the mobo) and AIDA 32. The readouts between the two differ slightly, but usually within 3-5 degrees of each other. I'm actually thinking of going out and buying a thermometer, becuase I don't know *what* to believe anymore.

I've checked to make sure that the heatsink is properly attached, and I made sure before installation that the thermal pad itself was free from grit or dirt. My cpu fan is definitely spinning (I can't check the speed since I disconnected it from the mobo) but it's spinning presumably at maximum speed (+- 4000 rpm) and all my case fans etc. are spinning as well. In fact, my mobo temp is usually around 32 C and case temp. around 28 C, even after a few hours of gaming.

What disturbs me is not only the high tempratures, but also the wildly fluctuating readouts I get. One day it's 46 C after an extended gaming session, the next it's 65 C - at least according to the readouts.

I'm beginning to wonder if my rather unusual cpu speed of 2.4 ghz (200X12=2400) is not somehow partly responsible, since a "normal" 3400 runs at 2.2. Thing is, that's how I got it from the retailer, and it was a boxed set.

I dunno.

I've spent a week with the damn thing trying to figure it out and I'm no better off for it, no matter what I try.
Short of water cooling (which I don't really want to do) I'm fast running out of options here...

Can anyone suggest something I maybe haven't tried or maybe shed some light on this very perculiar problem?

Thank you.
 

klah

Diamond Member
Aug 13, 2002
7,070
1
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Have you downloaded the new v1.4(nv) or v1.8(via) bios? It fixes this problem.
 

Conor026

Member
May 20, 2003
118
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Long shot here but i had a similar problem a year ago.
I had an AMD Athlon XP 3000+ with a retail Fan and heatsink.
The computer was shutting down because of temps passing the limit like yours.

Power Supply: http://www.qtec.info/products/product.htm?artnr=13025

The problem was that my 550 watt power supply was to near the CPU.
The whole Qtec power supply acts like a big heatsink to get heat away from it but
all this heat was going to the CPU and Ram at the top of the motherboard.

I got a new case that has alot more space between the power supply and the motherboard.
I also upgraded my retail fan and heatsink to the Zalman Folwer 6000-Cu.

Since then everything is prefect.hope this can help.
 

fuzzynavel

Senior member
Sep 10, 2004
629
0
0
Thermal pad = bad....should only be used as a stop-gap till u can get something better!!! that's just my opinion....

take off the pad and clean the base of the heatsink with rubbing alcohol I believe and then use some quality arctic silver 5 or ceramique and see if there is a difference.....my bet is that even with the standard cooling that there should be....

Also do you have latest bios updates?? some mobos report incorrect temps!
 

sandorski

No Lifer
Oct 10, 1999
70,808
6,362
126
Originally posted by: fuzzynavel
Thermal pad = bad....should only be used as a stop-gap till u can get something better!!! that's just my opinion....

take off the pad and clean the base of the heatsink with rubbing alcohol I believe and then use some quality arctic silver 5 or ceramique and see if there is a difference.....my bet is that even with the standard cooling that there should be....

Also do you have latest bios updates?? some mobos report incorrect temps!

Thermal pads are not the best, but they are certainly not "bad".

I vote for BIOS Update.
 

Elcs

Diamond Member
Apr 27, 2002
6,278
6
81
Id vote BIOS update.

Although the decent compound is better than a pad, its not necessary unless the temperatures are being correctly read and are really that high or overclocking is a major issue.
 

imported_FOF

Junior Member
Sep 21, 2004
3
0
0
Thanks for all the replies guys.

My psu is pretty much away from the cpu. The board I have (MSI K8N Neo) has the cpu pretty much smack bang in the middle of the board. The RAM though is situated horizontally right above the cpu, and I wonder if maybe that doesn't contribute to the heat as well. Maybe I should move the RAM as far away as I can?

But I'll try an updated BIOS in the meantime.

Thanks again.
 

sandorski

No Lifer
Oct 10, 1999
70,808
6,362
126
Ya, that motherboard is known to misreport Temps, but latest BIOS fixes it.