PC not starting up...

T

TwistedMetalGear

2[H]4U
Joined
Jun 19, 2005
Messages
2,482
Well this is just great. The system that I spent upwards of $2500 on decides to not turn on today. Worked flawlessly since I set it up last Christmas, PSU is an Antec Neopower 480w, a maybe a year or so old.

Anyway, mobo is an A8N32-SLI, the green power indicator light still remains illuminated on the motherboard. It's just that, when I press the power switch... nothing. Nothing at all. I tried turning off the PSU and then turning it back on, unplugging the whole computer, and finally trying a new switch. Nothing.

Which leaves me to believe it must be the PSU. But it's a frikkin Antec Neopower that's maybe a year old at most. I never overclocked or anything. I don't understand it. How can the PC work perfectly normal one day, and then just not turn on?

Any ideas?
 
Because they're PCs.

Try a few things first: take the reset switch attached to the pins on the mobo and attach it to the power pins, then try powering using the reset switch. If it works, then it's your power switch/wires that don't work.

If it still doesn't power on, you may want to try reseating the CPU or using a different PSU. I assume since you posted this, you don't have a spare PSU to test on this? I had that exact same PSU and and Asus A8N-SLI Premiuim which worked flawlessly for more than a year until it just decided to stop working altogether. I discovered later that that PSU apparently didn't work well with that motherboard, although it functioned fine for a year. I ended up buying an Antec TP 500 and my system works great again.

So, try swapping those things out to narrow it down.
 
Thanks. Like I said, I tried a new switch already to no avail. The CPU I'm not even gonna bother with, I would have to remove the whole heatsink just to get to the release lever. I'm just gonna assume that it's the PSU and buy a new one. I just hate the fact that this was an expensive PSU, with phenomenal reviews with quotes like "the only PSU to pass our torture test" or whatever that crap said in one of the PC magazines. My old cheapo Antec PSU's lasted 4-5+ years. But I guess that's because old hardware doesn't really stress them.
 
obvious question, but have you turned off the switch on the PSU, then turned it on after 10 seconds?

How old's your surge protector.

And finally, I've had the best luck with Sparkle PSU's. Quiet, powerful, and they just won't die no matter how much I try to kill 'em ;)
 
I've had bad luck with the Neopower 480w. Couldn't even handle hard drives spinning up without serious rail drops. Caused instant bluescreens in gaming. Not necessarily the problem here of course.

Happy with a Seasonic now.
 
Alright, someone explain this.

I go into my room today, after not using my computer since I made this thread. Some voice in my head [not literally] tells me to press the power button, so I go over there and do it. And walla! It turns on.

Well, I'm pretty happy at the moment, because I didn't have to buy another power supply, and it's funny because I was about to run out and buy one today. Just hope that it doesn't happen again! :)
 
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