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Reboot loop with no BSOD

post #1 of 12
Thread Starter 
I'm in the process of finishing up a rebuild of a Windows XP system that was originally run by an ASUS motherboard/Pentium 4 processor combo, but I swapped in an AOpen NCK804A motherboard, Athlon 64 3200+ processor, and Logisys 450W power supply. Everything else is the same.

It boots to the XP splash screen, but it only shows up for less than a second before it reboots. There's no BSOD, it goes straight back to POST, and if I have a USB keyboard hooked up, it'll give me a no keyboard error.

I've tried a different power supply with the same results. I tried a different hard drive with a different XP installation with the same results. As far as I know, the RAM is good, because it's the same RAM I used on the socket 478 board. I've checked the CPU temp/voltage, and voltage is set to 1.5V. I'm using a stock CPU cooler and it is running hot (61C at the hottest) but I wouldn't think that'd be hot enough to cause a reboot loop.

Any ideas anybody?
post #2 of 12
61*C in the bios is the cpu temp, not the cores, so add bout 15*C onto the 61*C and that will give you a rough guess at the core voltage. so that would be 76*C and thats while its idled in the bios, not trying to load the OS, id say you have seated the heatsink wrong, take it off and try again.
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post #3 of 12
Thread Starter 
Quote:
Originally Posted by Kal777;13009105 
61*C in the bios is the cpu temp, not the cores, so add bout 15*C onto the 61*C and that will give you a rough guess at the core voltage. so that would be 76*C and thats while its idled in the bios, not trying to load the OS, id say you have seated the heatsink wrong, take it off and try again.

Good point. It should be running a lot cooler than that... I'm pretty sure that the heatsink's seated right, so I might try a different heatsink and see if I can get it cooled down. Hopefully that's the issue.
post #4 of 12
4600+ are pretty toasty cpu's too. but im sure thats what it is.
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post #5 of 12
Thread Starter 
Quote:
Originally Posted by Kal777;13009298 
4600+ are pretty toasty cpu's too. but im sure thats what it is.

I can't remember exactly what temp my 4600+ runs at, but my GeminII does a pretty good job of keeping it cool. If it didn't take up so much room and require removal of the motherboard to mount/unmount it, I'd get another one for the 3200+.
post #6 of 12
Thread Starter 
BUMP... I can't get anything to cool this thing off. I've tried a couple different coolers, and both of them are reading over 60 degrees C in the BIOS.

Am I doing something wrong, are my CPU coolers junk, or are stock AMD CPU coolers in general junk?
Edited by hammerhead300 - 4/5/11 at 5:46pm
post #7 of 12
By default XP reboots from a BSOD instantly. "automatically restart on system failure" or something like that. You are much more than likely getting a BSOD.

Tap F8 before the Windows loading logo (as if you were to enter safe mode, etc.) and choose "disable restart on automatic system failure" and it will pause for your BSOD.

Also, if you don't have that option, attempt entering safe mode and unticking that option if you get access.

When going from Intel to AMD you usually have BSOD issues and are required to run a repair install or manually fix. I believe the error for this is 0x0000007E. Or check with Google smile.gif
post #8 of 12
BTW, this is the proper process to resolve the issue I am referring to;

http://www.cpuhack.com/wordpress/?p=142
post #9 of 12
Quote:
Originally Posted by nK.CrooK;13016957 
BTW, this is the proper process to resolve the issue I am referring to;

http://www.cpuhack.com/wordpress/?p=142

That doesnt really fix the issue he is having. Given that he has tryed different harddrives and fresh installs of xp then the issue is between the cpu and the board. And as he is getting a idle temp of 60*c cpu or 75*c core im sure that the bsod is caused by the cpu hitting Tmax and shutting off. The heatsinks that come with the athlon 64 cpus are junk and work better as a lame paper weight. Id try using a better heatsink, im 80% positive it will resolve your issue
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post #10 of 12
Thread Starter 
Quote:
Originally Posted by Kal777;13017505 
That doesnt really fix the issue he is having. Given that he has tryed different harddrives and fresh installs of xp then the issue is between the cpu and the board. And as he is getting a idle temp of 60*c cpu or 75*c core im sure that the bsod is caused by the cpu hitting Tmax and shutting off. The heatsinks that come with the athlon 64 cpus are junk and work better as a lame paper weight. Id try using a better heatsink, im 80% positive it will resolve your issue

You're both right, actually... it's still running hotter than I'd like, so there will be a new heatsink in this build's future. That said, disabling auto-reboot on BSOD did give me a blue screen, and I've narrowed down the official cause of Windows not fully loading to corrupt DLL files. I successfully booted into Windows 7 on a SATA drive that I swapped in just for the purpose of testing, so I know it'll run despite the hotter-than-normal temps. I can easily re-install everything on my computer as I still have all the installation files saved on the hard drive, so I'll just install a fresh copy over the top of the old one and call it good. Now I just have to make up my mind on which heatsink I want to swap in for the soon-to-be paperweight. tongue.gif
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