Anyone know what might be the problem? I just moved last night and didn't even pack my tower. I just unplugged it and put the whole thing in my car. Didn't drop it or anything at all. I was just setting it up and everything plugged in. Push the power button and it's starts up then 2seconds later it turns off by it's self. I opened it up to see if any cables came loose and found nothing. It's continuing doing the same thing. Couple of seconds and it turns off. Anyone know what's the problem?
if i go away on a trip for a long time mine does that once then it turns on the second time i have no idea what it is but im thinking its my power supply going to shit cuz its 6 years old and a hunk of junk 550w from circuit city back in the day haha enigma chim in !!!
If it starts up then shuts down within a few seconds, in my experience its usually because the heatsink isnt seated properly and the MOBO is forcing a shut down or a fan wire popped out of place for the cpu fan. Maybe the power supply since those are usually the first things to go, but I would just try re-seating all your components and that should fix it. Good luck
Checked everything again and it's all plugged in properly. Checked heatsink as well and it all seems fine. Guess power supply is the last possibility then?
Could be a number of things. It probably isnt a short somewhere, as that would power off almost immediately and a good PSU wouldnt even turn back on at all until you reset the power to it. So... Coule be a bad PSU, could be a bad motherboard. Could be a bad CPU, although I doubt that too. Usually a dead CPU powers everything on fine but you never get any video and the system doesnt post. So most likely culprits are a bad PSU or bad motherboard, PSU probably most likely. Open the tower, does the CPU fan spin up at all during these couple second? Even if it is plugged in all the way, if it is broken and wont spin up the bios could be doing a shutdown because it cant verify the CPU fan as working and turns off to prevent damage to the CPU. Could also be a bad outlet circuit? I know it sounds illogical, but maybe there is too much plugged in or something, or the power just sucks, and when the computer turns on and draws a bunch of electricity, the power supply gets starved for power after a second and goes into shut down to prevent damage to anything? Unlikely, but try moving it to another room on the far side of the house and turn it on and see if it works for longer or not. You dont need the full setup to test this, just go plug in the tower somewhere. Youll know if it shuts down after a couple seconds even without a monitor and peripherals. Now if it turns on for a couple second, turns off, then turns itself back on again after another couple seconds, it is a bios issue. So let me know if this more describes your symptoms.
All the fans are working when it is powered fir the few seconds and the just powers off. Tried leaving it and seeing if it turns on again after shutting itself off but nope. I thought of the bad circuit as well and moved just the tower to another outlet in the house and same thing happened. Tried everything thing you mentioned so far but nothing.
Time for a new computer lol, um well if you have another PSU to test the computer with then try that.
I can't possibly imagine just swapping outlets or just even moving it and leaving it unplugged would fire a PSU or board. Normally if you let it sit unplugged for a while then boot it up, the board normally recheck's the last known BIOS config and then will reboot - like mine does when I leave it unplugged, but after it restarts it always comes back up. Not sure what to tell you - if it was working fine before you moved it, and now it isn't - I can't really fathom that faulty hardware is just NOW the case. You might want to check your motherboard stand-offs, make sure the motherboard isn't grounded in the case anywhere when you moved it.
If it were a grounding issue though I dont think the computer would stay on for a full 2 second, it should short within a half second. But maybe. Computers do weird things some times.
that is what mine does for sure when unplugged for a long time ... if i go away for a weekend or vacation i unplug it from the wall the whole surge protector too make sure nothing happens ... everytime i first come back it does just that ... start boots for a few seconds restarts and loads fine ... who knows computers are wack sometimes
I'm not worried about mine, I'm glad it checks my last BIOS settings. Unfortunately I don't have a solution for the OP though.
Thanks guy for the help and suggestions. I'm going to replace the PSU and see if that is the problem, if not then I have an excuse to force myself to buy a new desktop woohoo!