1.0 GHz AMD Duron Morgan core at 60C?

[Creig]

My daughter has a home built system using a 1.0GHz Duron Morgan core on a K7S5A, non-overclocked/stock voltage with 2 sticks of 256mb PC2100. At full load (running UD) this thing hovers around or above 60C with the side panel off. It has a stock AMD CoolerMaster aluminum heatsink/fan from my 1800+ using Arctic Silver 5 paste.

Anybody have any idea why this thing is running so hot? Morgan core Durons were supposed to run COOLER than the previous generation Durons/Athlons, not hotter.

 

[WobbleWobble]

What is the actual voltage to the CPU under full load?
Does leaving the case open help temps?
Are you sure the heatsink is seated right? You may want to try and reseat it.

And sometimes boards just read temps very differently and sometimes high.

 

[DAPUNISHER]

If you're certain that you didn't use too much compound, and that the cooler is making proper contact, then the next step I'd take is actually feel the sink under load to see how hot it is. Do it fast so no burnt finger if it is indeed scorching hot. Of course that coolermaster is about the bottom end of sktA coolers. I have workstations out there with the K7S5A and retail 1ghz Morgan stock cooling and when I've given them yearly checkups and even before hitting 'em with compressed air, the CPU temps are never higher than 50c after being on for hrs before I arrived. But since you are crunching a distributed computing project which is more intense than anything the businesses do with them, 60c is quite possibly the correct temp. In the final analysis if it's stable then don't sweat it, because even though the core temp is undoubtedly higher AMD rates it for operational use up to 85-90c. If you just aren't content with it running that temp upgrade the cooler and watch the temp drop

 

[Creig]

WobbleWobble - Voltage reads 1.75 using MBM. And yes, I double checked the heatsink for orientation when I cleaned off the old AS3 and applied AS5. Nice thin layer.

DAPUNISHER - This puppy DOES run hot as a "finger test" proves that you don't want to leave it there for very long. I'm just trying to track down an occasional locking up problem with the machine and am leaning towards excessive heat as the culprit. I was just surprised to see temps that high on a Morgan Duron core, especially with AS5, a heatsink fan designed to cool an 1800+ XP and the side panel off.

Looks like I'll have to order a better heatsink/fan and see what that does.

 

[WobbleWobble]

Try running Prime95 to test the stability of the CPU. It'll maximize the heat output and is very very sensitive to erros so it may help you isolate the problem to the CPU.

 

[DAPUNISHER]

I think you're right that it's heat related failure, since it's transfering heat as best it can and the socket thermistor is probably substantially off how hot that core is getting, plus DC projects can really heat it up under the extended load they create. Never ran UD but F@H Gromacs WU's were the best single stability tester I ever used. I also never pay any mind to what they rate a heatsink for, I rely on user feedback and personal experience when it comes to coolers. I've found while the stock cooler and pad that ship with the 1ghz Morgan are fine for office use I don't think I'd want it on there to fold 24/7. That coolermaster would make an awesome northbridge cooler for a nForce2 IGP board

 

[Creig]

Well, ordered a few things from Newegg including a nice quiet and inexpensive Speeze heatsink/80mm fan. Temps are now down in the low 40s at 100% utilization and overall noise has decreased considerably. Not bad for under $10.

Case closed. Literally.