Powers on for about a second..

Viper² · 30 Oct 2007 at 20:14

So I've moved all my stuff into my new case, but after pressing the switch, it will power up for about a second then go off. It won't power on for another few minutes, and then, it only goes off after a split second again.

Any ideas what the problem might be?

paradigm · 30 Oct 2007 at 20:16

Sounds like it could be shorting out somewhere, or the PSU is just having issues.

Try running it completely dismantled out of the case, bare minimum of PSU, MOBO, RAM, CPU, GFX

Viper² · 30 Oct 2007 at 20:23

Thanks, will do. It came with a 450w PSU but I decided to use the 450w one I had already.

Viper² · 30 Oct 2007 at 20:44

Damn it.

All powers up fine... when the cpu power plug is out.

Can I save it?

subfaction · 30 Oct 2007 at 20:46

sounds like a very similar issue I had, mobo was faulty.

mejinks · 30 Oct 2007 at 20:48

Huh? the 4 pin jobbie that goes next to the CPU? What processor, mobo, ram, hard disks?

Id be inclined to check its not the graphics card. The newer ones need an additional connection to the PSU

Viper² · 30 Oct 2007 at 20:50

mejinks said:
Huh? the 4 pin jobbie that goes next to the CPU? What processor, mobo, ram, hard disks?

Id be inclined to check its not the graphics card. The newer ones need an additional connection to the PSU

Checked it. Took out the card and the same, took out the connection to PSU and still the same.

And yes, I'm talking about the 4 pin jobbie.

mejinks · 30 Oct 2007 at 20:53

Viper² said:
Checked it. Took out the card and the same, took out the connection to PSU and still the same.

And yes, I'm talking about the 4 pin jobbie.

What processor is it and what motherboard?

Viper² · 30 Oct 2007 at 20:58

mejinks said:
What processor is it and what motherboard?

Pentium D 820
MSI P4M890M-L

I'm due an upgrade anyway. But I'm stuck for another few weeks.

mejinks · 30 Oct 2007 at 21:03

Hmm, cpu power plug deffo needs to be in for an Intel, have you tried pushing down a little on the heatsink while trying to power up? My Intel board used to do exactly that until I discovered that the heatsink wasn't quite exerting 4 tonnes of pressure and bending the board.

Viper² · 30 Oct 2007 at 21:14

I have a CPU Cooler, plus the heatsink is hotttttt.

mejinks · 30 Oct 2007 at 21:20

Its a stock cpu cooler? What I meant was, try adjusting it around on the cpu. Give it a wiggle. My mobo detects how firmly the cooler is onto the chip and will refuse to boot until it is satisfied there is board bending pressure on it.

Viper² · 30 Oct 2007 at 21:24

Aye it's stock. I'll try what you suggest.

caithomas44 · 30 Oct 2007 at 21:26

try a new psu. if everything turns on but there is no beep and it will only turn on intermitently then it is most deffintley a psu problem.

bigguns · 30 Oct 2007 at 21:30

if i was you, i'd take out the motherboard, ram, cpu and reseat it all. make sure that its not grounding out anywhere.

And if you using more than one stick of ram, plug one in (no hdds, cdroms, pci cards) just the core items.
Take the simple view, start barebones then move up from there.

If it doesnt work, it looking more like the motherboards (most likely factor)

Viper² · 30 Oct 2007 at 21:38

Thanks for the suggestions.

Things may be looking up.

I took out the CPU, reseated it and then smoothed the heatsink over... restarted it (without gfx card), and everything seemed to be fine, so I've put the gfx card in, given it some PSU power and it still all looks good.

Time to try with the HDD..

EDIT: Everything is out of the case bigguns. My first thought was that it was grounding out.

Viper² · 30 Oct 2007 at 22:43

Woot. It was just that ^

Thanks guys.