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First my PSU, now what? [PC repair]
Improvolone
Registered User regular
Registered User regular
The Past: I built my own pc about 6 months ago, yay! My PSU died about a month ago, boo! NewEgg sent me a new one, yay!
The Present: I've installed the new PSU and can't get the computer to do anything. I can't even to get it to beep or post. Out of sheer curiosity I tried the old PSU with the same results. Oh God, I hope I don't have to buy a new fucking motherboard...
The Future?: I didn't have to buy a new fucking motherboard! There was just some weird problem that fixed everything!
The Present: I've installed the new PSU and can't get the computer to do anything. I can't even to get it to beep or post. Out of sheer curiosity I tried the old PSU with the same results. Oh God, I hope I don't have to buy a new fucking motherboard...
The Future?: I didn't have to buy a new fucking motherboard! There was just some weird problem that fixed everything!
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I always like to inquire, because of everybody I know that's had PSU issues, I'm the only one that's never fried a board. I'm guessing it has something to do with my preference for ASUS/ASRock boards, but I always like to know what brand of boards can survive a PSU failure.
So yea, mobo is still very much suspect. Highly suspect, I might add.
Yeah, I guess try to reset the CMOS, hopefully that will fix it.
Is even the power indicator on the board lighting up when you plug it up to the PSU?
It could be the connector is bad, or a short in the wire. That'd be a much cheaper replacement than the whole board.
edit: CMOS battery pulled and reseated, no change
dbl edit: When I said the power light comes on, I mean the case's power light
What, if anything, is displayed on the screen when you boot? Does the keyboard/mouse light up?
Are you using onboard or card? Generally, before I diagnose motherboard, I want it to be the only thing I'm dealing with, because they can be damned expensive, especially if you're replacing it needlessly.
Computers will not boot at all if there is no RAM or CPU installed.
Wow I can't believe I missed that.
It is entirely possible the PSU is bad (it's always possible to get a DOA product). Your machine seems to be doing essentially what mine was when the PSU was failing on it. Was it brand new in the box, or off the shelf?
I'm just trying to come up with anything it could possibly be besides the motherboard because....yeah, I hate saying a board is fried.
My case has stupid psu dimensions. Next time, I'm just building my computer directly into my home theatre cabinet.
Actually, I just had a problem with my gigabyte board that turned out not to be the board in the end.
Start by removing the video card - if it posts, beeps, etc. You know you have a bad video card. That is exactly what happened to me - thought the PSU went out, system wouldn't boot (at all, no beeps, nothing). Bought a new PSU, same results. Eventually I bought a new system, tried to reuse my video card, same results again. Had to replace the video card.
Is it possible that, since he's using onboard video, for that to still be the problem, and able to be solved by using a video card?
I've heard good things about Gigabyte recently, but I have never owned one of their boards myself. Right around when they released the Dual-Bios, their reviews started getting better.
Check that everything is seated/reseated properly. Look for any kind of grey goo around any of the capacitors on your board. Look for any possible brown marks on the board that could give away where something could have fried.
Try using a different or no power strip if you're using one. It's possible you're still getting bad power to the PSU itself.
If you're getting lights on the board, use the mobo manual to tell you what they are indicating (one may be a "power good" light). You can also pick up a PSU tester from a Radio Shack type place to test the PSU without connecting it to the mobo. Unfortunately you can't do the same with the mobo itself.