PC won't turn on.

InfiniteNoise · 3 Nov 2011 at 15:47

Heard a beep when the PC suddenly shut down and now it won't turn on. (Well, when I press the power button, the LED comes on for a sec then turns off)

Then I turned on the PC, it said the overclocking failed on POST screen, pressed F1, downclocked it a bit to 3.8Ghz and rebooted but it shut down again and won't turn on since then.

I noticed something different, when I touch the case (Lian Li A05FNB, made of aluminium) I feel some sort of electrical current, the same effect when you touch a MacBook Pro when it's plugged in, but much stronger.

The PSU is OCZ StealthXStream2 700w, I don't know if it's the PSU, the MB or the CPU, I don't have a spare PC or anything to check what's the problem.

The failed overclock and the electrical current I felt tells me it's the PSU but I'm kinda worried, by turning on the PC again, I might have killed something else. ): Perhaps I shouldn't have done that.

Admiral Huddy · 3 Nov 2011 at 15:50

Does sound like a suspect PSU but i would clear all overclocks by reseting the CMOS before testing anything.

You can check your is your PSU is functioning as expected by following my guide here:

http://www.huddysworld.co.uk/index....rking&catid=40:techie-talk-hardware&Itemid=72

Check also the event log if you can boot for any clues.

InfiniteNoise · 3 Nov 2011 at 16:00

Well, I'm almost certain it's the PSU.

On my motherboard (ASUS M5A97 PRO), the green LED isn't on. (That LED is supposed to be on when the PSU is plugged in and turned on, regardless if the system is turned on or not.)

So, what do I do now? RMA the PSU? I bought it from here. Or should I get another PSU first and check if it's really the PSU?

edit: I'm not sure if that's the case, replugged the system and the green LED is on now but I get the overclock failed screen again but that's as far as I can go, because when I enter the BIOs and exit it, the system shuts down again.

edit 2: Reset the BIOS and now I can boot into Windows, everything seems fine.

Hyburnate · 3 Nov 2011 at 16:15

Idartalis said:
Well, I'm almost certain it's the PSU.

On my motherboard (ASUS M5A97 PRO), the green LED isn't on. (That LED is supposed to be on when the PSU is plugged in and turned on, regardless if the system is turned on or not.)

So, what do I do now? RMA the PSU? I bought it from here. Or should I get another PSU first and check if it's really the PSU?

edit: I'm not sure if that's the case, replugged the system and the green LED is on now but I get the overclock failed screen again but that's as far as I can go, because when I enter the BIOs and exit it, the system shuts down again.

edit 2: Reset the BIOS and now I can boot into Windows, everything seems fine.

Save a profile, turn down your voltages for ya oc,
Edit: oh I see edit two now

, inadequate PUS

InfiniteNoise · 3 Nov 2011 at 18:45

Yeah, I probably should save a OC profile.

After that shut down, I no longer can run the CPU at 4GHz or it'll just shut down again after POSTing and I have to replug the system to get it running, I guess the something got degraded to the point where it can't run at 4GHz stable because I've been running it at that speed for months.