Problem with old computer - black screen

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tazz85

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Hi, I have some friend with old PC, which he has rarely used in the past 3 years. He said he didn't launch it for 2-3 years and now he tried but the computer gets black screen sometimes and sometimes he boots into Windows. I did couple test on HDD, I did one on RAM test, but it said it's OK. I don't know what could be the reason. Possibly Mobo, PSU... I have preinstalled Windows, returned it to him, it worked, and next day again it was black screen. I got it again, tried to boot - black screen. When I changed the RAM - it worked. I put back the old DIMMs and again it worked. Now I;m going to test them again.

Hardware configuration is
MB: ASRock Dual 775 880 Pro
CPU: Celeron 2.53GHz
2x512MB DDR400 A-Data

If u have advice I'll be thankful.
Thank you.
 
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tazz85

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Now it works good, right now I'm doing memory test with both programs from UBCD. The first Memtest 4.20 showed no errors. I'm doing the second right now. BTW how to test the GPU?
 
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p4nz3rm4d

p4nz3rm4d

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So did it fail when you ran furmark, then? cant quite tell from your post. If it did, then your GPU is to blame. Try get another to test this, or use onboard is possible.
 
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tazz85

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The screen got in two parts - down half part got up and the upper half got down. Like when screen is cycling vertically. I'm not good explainer, sorry. But now I ran the same test and there is no such problem.
 
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tazz85

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Ups, when I said there is no problem, test of video card was just one hour. But I let it go and at 1:30 same problem happened. Excuse me,but when there is problem you will see it visually with furmark, right?
 
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p4nz3rm4d

p4nz3rm4d

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Yes, if the GPU is in any way faulty, you will definitely see something out of the ordinary during a burn in test. If you got an issue during it, then there is something wrong with your card. What temps do you get?
 
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tazz85

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Maybe the RAM is issue. I remember when the computer again didn't boot up I have reinstalled it and it boot on the first time. Now I had the same issue, replaced the RAM with other sticks, and the computer booted. Now I will run furmark to see the temperatures.
 
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tazz85

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I will try to install Windows 7 32-bit, right now I have 2GB DDR2-800 installed. Will it be better to test this system under Windows 7, because win7 will automatically search and possibly download these drivers.
 
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tazz85

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Yesterday the computer didn't boot. Again all were black screens. But, I managed to see the problem is neither the RAM, neither the Video Card. I changed the the card with a working nVidia GeForce 7600 GS and it didn't boot even one time. I've changed RAM - tried with both pair slots - DDR and DDR2 and it didn't work either. So - Motherboard or the PSU is the question. A buddy said motherboard must be heated, because the components and tracks somwhere are unsoldered. I didn't understand him so good, I'm going to ask some service. Thank you.
And BTW I've got CCNA - if u need help, you can write me.
 
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p4nz3rm4d

p4nz3rm4d

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if its definitely not ram or gpu, then you are correct. might also be the cpu...

 
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