help (power problem)

stufflol · 2 Jul 2011 at 02:54

"I have had an issue 3 times when starting up my computer, I press the power button , the fans/lights come on for about 5 seconds then it shuts down then like 2 seconds later it starts up again and boots fully."

After reading a few posts if think I have came up with the reason this was happening.

when my computer starts up it dose not account for the extra power usage for the overclock (3.3ghz -4.4ghz) making it turn its self off.

I have removed the overclock and have not had the problem again as of yet but it had only happened 3 times in 3 months.

I was just wondering if this sounds like a plausible solution, or if anyone else had the same problem (running an OC'd processor)

thanks

stulid · 2 Jul 2011 at 02:56

What psu?

stufflol · 2 Jul 2011 at 02:58

Motherboard is a P67A-UD3-B3
the PSU is OCZ Stealth extreme 2 600w
RAM 4 GB corsair vengence 1600mhz
MSI gtx 460
Corsair H50 cooler

the pc is OC'd to 4.4ghz

stulid · 2 Jul 2011 at 03:00

Theres certainly nothing there that should cause an issue for that psu.

stufflol · 2 Jul 2011 at 03:01

so what do you think it is?

stulid · 2 Jul 2011 at 03:05

Is there a bios update for the board? Does it mention anything in particular in the release notes?

stufflol · 2 Jul 2011 at 03:06

Where would I find that?

stulid · 2 Jul 2011 at 03:08

Probably the gigabyte website.

Search for your exact motherboard, then look at the downloads section.

stufflol · 2 Jul 2011 at 03:10

http://forums.anandtech.com/showthread.php?t=2158911

i found this!

stufflol · 2 Jul 2011 at 03:13

seems I was right ish

"I'm not too sure about intel chips, but cpu spread spectrum in AMD chips help stability (in some cases) by adding a little extra voltage when needed. Obviously, you don't need to use it, but sometimes it does help. Personally I turn it off if I'm trying to get my max OC though."
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stufflol · 2 Jul 2011 at 03:19

how do I disable PLL Overvoltage tho :S

stulid · 2 Jul 2011 at 03:47

The S3 resume issue is different to what your issue is, its called a cold start bug.

stufflol · 2 Jul 2011 at 04:00

oh right ;S

shall i just wait and see if it happens again since i have removed the OC?

PcTestCard.couk · 2 Jul 2011 at 05:45

try reset the Bios default then only change the OC settings and see if this works.

Some Mb may need to self reset and adjust the circutry when cold powering on the PC for the OC settings to run smoothly.

Hope this helps!
Bill
tech manager