Cool N Quiet causing lockups

[Rocket321]

Bios ver: 2004/10/19
1. I enabled cool N quiet in the bios
2. I downloaded and installed the A64 driver for Windows XP from www.amd.com
3. I set power management to "Minimal power management"
4. I verified that cool n quiet is working by opening my computer properties which shows various CPU speeds (not always at 2.01 like w/o CNQ)
5. After doing these steps, the computer will generally not run for more than 5 minutes without locking up and then rebooting
6. I ignored it and used it for a few hours, but found it rebooting quite frequently
7. After that I turned off CNQ in the bios and it has been stable for hours.

Anyone else running into this problem? I'm using the stock HSF on the CPU at this point. Also, I tried to install the AMD utility (PowerNow! Dashboard) that displays the cpu speed and CNQ info but it locked up the computer during the install.

This machine just had c:\ formatted and reinstalled with WinXP SP2 yesterday. There are only a few other things installed at this point including the nforce drivers, vid drivers, norton AV, and spybot-sd.

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A64 3000+ (754)
Chaintech VNF-250 w/latest bios
768MB PC2100 generic ram

 

[bovinda]

Did you notice the CPU temp while using CNQ before it shut down any of those times?

Also, any particular reason you set it to minimal power management? I know it's probably far-fetched, but does changing the power management scheme to Home/Office Desk have any effect while using CNQ?

Locking up and rebooting periodically sounds similar to issues with faulty PSUs, IIRC. I'm not sure why CNQ might cause similar symptoms to manifest. Hopefully someone who knows better can comment.

 

[Rocket321]

The CPU temp was actually a few degrees lower than normal - about 40 C - after turning on CNQ which is another way I know it was working. I turned on minimal power management becuse per AMD's instructions, that is how you turn on CNQ in windows. Other than that I am running on an almost brand new Antec True 430 powersupply. And since everything works fine with CNQ turned off, I was wondering if other owners of the VNF250 had similar expirences.

 

[stackingreasyBBs]

I've never even gotten CNQ to work at all on my VNF250, so you're way ahead of me Maybe I'll try the steps you outlined and see what happens.

 

[alteredNate]

I had similar results with my DFI Lanparty NF3. It didn't lockup and reboot on it's own, however tryign to run any game or power-hungry application would have really unstable results. I read a bunch and learned that this technology is rarely fool-proof. It's a shame, because these A64 beasts suck up the juice.