Does this sounds like a PSU problem to you?

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I got home last night and my PC wouldn't power on. Up until that point I had been using it fine with no problems and the night before, I was using it and powered it down normally. When I pressed the power switch on the case I heard a brief whirling of the fans and then it seemed to shut down.

At this point I took the side off the case to see if I could see any damage to anything. There was nothing obvious that I could see. This didn't happen as a result of something going wrong or me changing something. Everything was fine as far as I know and then all of a sudden it won't power on.

So I tried pressing the power button several times. A couple of times it would get to the POST screen but there was a message saying that it was running in fail safe mode and that the uGuru utility (it's an abit motherboard) should be checked in the set up. Before I had time to do this it would cut out. I did manage to get into the bios once before it cutting out but I don't know what I was looking for really or if there was anything wrong with that. I don't know if the message about the fail safe mode is an indication of the problem or a result of it not powering on correctly.

Other times when I pressed the power button the lights on the motherboard would come on and the fans would start to spin momentarily and then it would shut down.

The motherboard has a small LED counter thing on the bottom right and another red LED light near the ATX Power socket. Now when the power supply is on (as in the switch on the back is set to on but the computer not on) these are lit and stay lit. When I try to turn the computer on the other lights come on before it shuts down.

There is also, what I can only describe as a fast clicking noise prior to it cutting out. If it cuts out after just pressing the power button then it just tends to make one or two, like the noise you get from a static shock, then goes. If it makes it to the POST screen you can tell when its going to go because it makes about half a doesn't clicking noises then goes.

Do you think this is an issue with my PSU or one of my other components? I'm really struggling to know what the problem is. Unfortunately I don't have any spare components that I could use to do tests and I don't know anyone that might have any either. So any information/advice from here would be really useful.

Here is my spec:

Antec P182
Intel Core 2 Duo E6600 (2.4ghz) Socket 775 FSB1066 4MB
Abit AW9D-MAX Intel 975X (Socket 775) PCI-Express DDR2
Corsair 2GB (2x1GB) DDR2 800MHz/PC2-6400 XMS2
MSI 7900GTO 512MB DDR3 DVI TVO SLI ready PCI-E
2x 1TB HDD
1x 500GB HDD
1 Optical Drive
And either a Hiper 530W Black Type-R Modular PSU or Hiper 580W Type-R Modular PSU, not sure which one I put in this case

Any help would be gratefully received. Thanks in advance.
 
Sounds like psu or motherboard IMO, hopefully not both. Can you not get hold of a known working psu to test from anywhere? A cheapo 400w from one of the big retailers would do. They're useful to have laying about too
 
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You could try 'jumping' the PSU. Disconnect it from everything except for maybe a fan or 2. Then connect the green to a black wire on the 24pin mobo connector. This should show you if the PSU can run on it's own.
 
message saying that it was running in fail safe mode

This would suggest your CMOS has loaded the fail safe defaults so could be something to do with your system board. Start by resetting the CMOS using the jumper on your board and removing the battery for a minute or two and reinserting. Then try booting the system up again. You will have to set the time/date in the BIOS again.
 
It does sound loke a power supply problem . when you have tried to run the computer and it shuts down , unplug the power lead from the supply and if you hear a click then its deffo the supply.
 
Sounds like psu or motherboard IMO, hopefully not both. Can you not get hold of a known working psu to test from anywhere? A cheapo 400w from one of the big retailers would do. They're useful to have laying about too

There is another PSU in a computer in the house which is one of the two listed above. The trouble is I'm reluctant to start taking that one apart as its used daily by my folks and in the unlikely event of it going wrong they would not be happy. I've been thinking about ordering a cheap PSU online for Saturday delivery.

You could try 'jumping' the PSU. Disconnect it from everything except for maybe a fan or 2. Then connect the green to a black wire on the 24pin mobo connector. This should show you if the PSU can run on it's own.

What do you 'jump' the green and black wires with? Does this involve taking the plastic plug bit off and touching the wires together or is it sticking something into the plug type of thing ?

This would suggest your CMOS has loaded the fail safe defaults so could be something to do with your system board. Start by resetting the CMOS using the jumper on your board and removing the battery for a minute or two and reinserting. Then try booting the system up again. You will have to set the time/date in the BIOS again.

I will give this a go but will have to be tonight or tomorrow now as I'm in work. I remember the same thing working on a PC I was building years ago but never done it on one that was previously working well.
 
It does sound loke a power supply problem . when you have tried to run the computer and it shuts down , unplug the power lead from the supply and if you hear a click then its deffo the supply.

Yes now that you mention it, there is a clicking noise when I plug the cable in or take it out as I was doing that last night. I have a feeling that it's always done that though :confused:
 
Hearing a small crack when plugging a psu in is quite normal. You don't have to take your old psu out of the case when testing - just plug the two motherboard plugs in and the boot drive with the other psu outside of the case
 
Yeah thanks, I'll do that. I have ordered a PSU to be delivered on Saturday now. Hopefully it will arrive and have all the relevant connections etc. It's an OCZ Stealth xtream 500W so hopefully that will be OK.

If I get the same issue with the new PSU I guess it's safe to assume that it's the motherboard at fault? In which case I will have to try and replace that. Fingers crossed it's the PSU.
 
If it's running in failsafe mode your memory will be undervolted. Try with one stick only and see what happens. Corsair 6400 gets stroppy if it's not getting enough juice.
 
I wouldn't really describing it as 'running' but yeah it does come up saying it is in fail safe mode. The thing is it's been quite happy for several years like this. Other than adding a new hard drive back in January I think, there hasn't been any other components added which require power.

I'm hoping this is just another indication that it's the power supply that has gone.
 
What do you 'jump' the green and black wires with? Does this involve taking the plastic plug bit off and touching the wires together or is it sticking something into the plug type of thing ?

A paperclip would do it but then you have an exposed live connection. I've previously used the little wire wraps that come wrapped around cables with new products (also come with some freezer bags). You remove some of the coating from each end then have the insultaed middle to hold or place down anywhere.
 
Dude Im no expert in electronics but id be careful mixing paperclips and live connections :s
 
If you're worried about that then you can just buy one of these:

http://www.overclockers.co.uk/showproduct.php?prodid=WC-021-OK

WC-021-OK_400.jpg
 
Update: Shes alive!

The new PSU arrived this morning bright and early. I unplugged the old one and I have the new one installed outside the case as I type this. Looks quite ghetto at the moment so going to try and have a tidy up and maybe reapply the thermal paste on the CPU.

Wonder what caused the Hiper to fail though, need to look at the warranty and see what kind it's got. Will post back later when I've got everything back in the case.
 
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