Trying to bring back old PC from the dead, freezes after startup

clange50

Member
Apr 9, 2005
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I've got an older P3 933 that started freezing at random times, then eventually got so bad that it was seconds after startup. Its 'death' years ago motivated my to get the PC I have now.

Anyway, I'd like to figure out whats wrong with this thing, if nothing else for a learning experience.

Basically it freezes right after startup. I can click on a couple things maybe but it will lock up solid. No BSOD, no reboot, the screen freezes and it will sit like that until the power goes out. I tried a new install of XP, and it gets pretty far into that (to the point you set the time) and then it froze there also. Tried again, froze sooner.

What does this sound like? I obviously know little to nothing about troubleshooting hardware, which is why I'm posting this. :) I'll be searching as well, but I figured this might be specific enough someone could tell me right away what it probably is.
 

law9933

Senior member
Sep 11, 2006
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Hi, Just guessing- if it is not full of lint & crude blocking cooling fans, over the counter PC's have under powered PSU's that can't handle added accessories. They usually need company/pricey replacements. Someone might like to know the brand & model # info- details.
 

law9933

Senior member
Sep 11, 2006
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"used to have another hard drive and a radeon 9100 pro in it." That could have stressed the PSU? 256MB minimum of memory is needed for XP.
If it matches buy that one- install your memory & add nothing extra.
 

law9933

Senior member
Sep 11, 2006
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What I was thinking but did not say was, if it was then a good PC. You would have a cheap source to install parts from the old PC to learn from. Swapping parts seems to be the only way to fix a dead PC.
 

xgsound

Golden Member
Jan 22, 2002
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If the bios posts you've got something to work with.When I'm at this point I usually try a bootable CD like "Ultimate boot CD". This eliminates the OS and provides selectable utilities so you can see if anything is working at all. Run the simplest tests you can find. I usually start with memtest (memory needs to work anyway) from a diskette or cd boot. If memtest fails, strip all but one mem stick out and check each individually. If it still fails, remove cards and drives until all that's left is the minimum components to run memtest. If memtest still fails you have a better handle on what the problem is (mobo, cpu, psu, kb, all ram, mouse, monitor) than you did before.

Once memtest runs you can (re install cards if necessary) check the other components one at a time with the other utilities. A successful XP install requires that everything is working excellently to begin with. Some possibile failed parts could have been bad psu, bad disk sectors, bad IDE cable, mem failure, or even mobo caps. Let the tests point you to the problem.

Jim
 

clange50

Member
Apr 9, 2005
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Finally got some more time to work on this. It freezes regardless of hard drive, so thats not it. It just froze during memtest86. It was 79% done with no errors. I'm going to run it again with one stick of ram at a time.
 

clange50

Member
Apr 9, 2005
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Froze at 79% on each stick of ram. Whatever is bad doesnt like that part of the test. Not sounding good I guess.
 

KeithP

Diamond Member
Jun 15, 2000
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Could you try it with the case off and maybe point a fan at it. I doubt it is a heat related issue but this would be an easy way to check.

-Keith
 

clange50

Member
Apr 9, 2005
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Trying stuff on the ultimate boot cd and nothin gets very far. The CPU tests wont even load, the memory tests all fail at some point. I dont think it would be heat when the memory tests fail at the exact same point. I would assume its the motherboard or CPU?

Any way to narrow it down between the two?

Edit: The StressCPU test actually loaded and ran for like 5 minutes then crashed..odd