The new board could be DOA indeed, otherwise it sounds like a PSU issue but you already tested that.
PC won't work, any ideas?
OK, so I've pretty much exhausted most of my ideas on this, and it has confused the hell out of me
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My mate went against my advice and bought a PC from Tesco
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Lo' and behold, it's warranty has just expired then it breaks
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He said he was surfing the net and the screen froze, the computer then switched off. He tried turning it back on and everything would power up for 5 seconds then shut off again, no signal to the monitor or anything.
He then bought a new motherboard......when I told him he should check everything else first. As I predicted, the new motherboard didn't solve the issue. He still had the same problem.
I brought his PC to mine, put his CPU and RAM into my PC and it booted just fine.....obviously not the CPU and RAM. To be extra sure, I put my CPU and RAM into his system, and it still wouldn't boot. We then tried my PSU in his system...and it still wouldn't boot.
So now I have exhausted the CPU, RAM, MOBO, and PSU
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I swapped out his HDD, still no dice. The mobo has onboard graphics so it clearly wasn't a GPU issue.
I then thought he may have set up the PC wrong when he bought the new mobo, so I stripped it down and put it back together. Still no dice!
I did notice that the back plate for his HSF had no rubber pad between the back plate and the mobo, and this could be shorting his pc.So I put a couple of layers of toilet roll between the back plate and the mobo to prevent contact, and still no dice
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He did say that the backplate didn't have a rubber pad on his last board either
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So in a nutshell, the only thing we haven't changed is the damn case!
The only two problems I can think of are:
The toilet paper wasn't enough to stop the back plate touching the mobo?
The new board was DOA?
System Specs:
Q6600 G0
Asus P5Kpl (onboard graphics)
300w Generic PSU
HDD
3GB RAM (1x 1GB, 1 x2GB)
I would really appreciate some input on this, I'm totally stumped.
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My mate went against my advice and bought a PC from Tesco
He said he was surfing the net and the screen froze, the computer then switched off. He tried turning it back on and everything would power up for 5 seconds then shut off again, no signal to the monitor or anything.
He then bought a new motherboard......when I told him he should check everything else first. As I predicted, the new motherboard didn't solve the issue. He still had the same problem.
I brought his PC to mine, put his CPU and RAM into my PC and it booted just fine.....obviously not the CPU and RAM. To be extra sure, I put my CPU and RAM into his system, and it still wouldn't boot. We then tried my PSU in his system...and it still wouldn't boot.
So now I have exhausted the CPU, RAM, MOBO, and PSU
I swapped out his HDD, still no dice. The mobo has onboard graphics so it clearly wasn't a GPU issue.
I then thought he may have set up the PC wrong when he bought the new mobo, so I stripped it down and put it back together. Still no dice!
I did notice that the back plate for his HSF had no rubber pad between the back plate and the mobo, and this could be shorting his pc.So I put a couple of layers of toilet roll between the back plate and the mobo to prevent contact, and still no dice
So in a nutshell, the only thing we haven't changed is the damn case!
The only two problems I can think of are:
The toilet paper wasn't enough to stop the back plate touching the mobo?
The new board was DOA?
System Specs:
Q6600 G0
Asus P5Kpl (onboard graphics)
300w Generic PSU
HDD
3GB RAM (1x 1GB, 1 x2GB)
I would really appreciate some input on this, I'm totally stumped.
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I don't think this is it, a faulty power switch won't work at all.
Also, "double fault" harware issues REALLY suck. I had one once where I had a bad proc AND a bad video card. Took me days to figure it out.
Originally Posted by Ѳѷ뮩ƪǑȻҞ  The only thing I could think of is a faulty power button on the case(hmm...). Maybe you could try it in another case and see if that works... probably won't make a difference, but it's worth a shot |
Also, "double fault" harware issues REALLY suck. I had one once where I had a bad proc AND a bad video card. Took me days to figure it out.
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Hmm, do me a favor and just try it with a video card in there.
Originally Posted by IcedEarth The mobo has onboard graphics so it clearly wasn't a GPU issue. |
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Actually, we had to put a jumper on his power switch on the mobo. His stupid case pwr button lead isn't long enough to reach the location on the new mobo
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I also thought this could maybe be the problem. But he had this exact same issue prior to getting a new board so I ruled it out. I have no spare cases lying about and he's absolutely skint lol
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Tried my PSU in it, didn't solve the issue.
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I was going to do this, because if the BIOS wasn't set up right, it could have the onboard graphics disabled and wouldn't allow it to post a signal. But it still restarts every 5 seconds so it wouldn't explain that symptom. I will give it a try anyways!
Also another thing to note is that his board has an extra 4pin power port, in addition to the 24pin. Yet when I plug this in, the computer won't boot at all, never mind for 5 seconds.
I'm leaning towards a DOA board, but it just wouldn't make sense!
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Thanks so far guys!
Originally Posted by Ѳѷ뮩ƪǑȻҞ The only thing I could think of is a faulty power button on the case(hmm...). Maybe you could try it in another case and see if that works... probably won't make a difference, but it's worth a shot |
I also thought this could maybe be the problem. But he had this exact same issue prior to getting a new board so I ruled it out. I have no spare cases lying about and he's absolutely skint lol
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Originally Posted by Dobbie Sounds like the PSU. When you try to power the system up it start to convert the energy but it sounds like it can't hold the charge or something. |
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Originally Posted by fuloran1 Hmm, do me a favor and just try it with a video card in there. |
Also another thing to note is that his board has an extra 4pin power port, in addition to the 24pin. Yet when I plug this in, the computer won't boot at all, never mind for 5 seconds.
I'm leaning towards a DOA board, but it just wouldn't make sense!
Thanks so far guys!
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Have you tried taking the MOBO out and rotating it temporarily so the pwr button lead reaches? It's a long shot but why not.
Originally Posted by IcedEarth Actually, we had to put a jumper on his power switch on the mobo. His stupid case pwr button lead isn't long enough to reach the location on the new mobo
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Tried that, still the same result unfortunately
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Yea, I've come to the same conclusion. I've told him to ship the board back as DOA. If he still has the same issue afterward, I really wouldn't know what to suggest.
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I had no idea you could do this? I can give it a shot though. Thanks.
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Originally Posted by Dobbie You could also (just for the hell of it), pull the CMOS battery out. Wait for about 30 sec and put it back in. Never know, might just work 
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Originally Posted by fuloran1 This is a strange issue. It looks to me like double hardware failure. 2 bad boards. |
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Originally Posted by Ѳѷ뮩ƪǑȻҞ Have you tried taking the MOBO out and rotating it temporarily so the pwr button lead reaches? It's a long shot but why not. |
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