help with computer issue

CAT-THE-FIFTH · 14 Oct 2014 at 13:31

My system would do short startup/ shutdown loop after the computer went into sleep state. The only rectify this was to unplug the PSU cable and clear the CMOS.

It did the same last night and now is just switching on and off if short the power jumpers. Tried different CPUs,ram sticks,graphics cards,HDDs and ssds. Even removed everything from the case and powered the CPU cooler direct from the PSU.

Tried different batteries,clearing CMOS manually or even keeping the mb for an hour with battery disconnected from power. Nothing changes.

I assume that means the mb is fubared then?

CAT-THE-FIFTH · 14 Oct 2014 at 13:40

System specs:
Xeon e3 1230 v2
16gb ddr3
120gb ssd
2tb HDD
Gigabyte h67n itx mb
Corsair h40
Gtx660
Xfx pro 450w PSU

Other hw used for test:

Fsp flexatx 500w PSU(one in high end shuttles)
Hx520w
Corsair vengeance and amd gamer ram kits
Hd6870

stulid · 14 Oct 2014 at 15:33

BIOS update.

Try flashing the backup BIOS to the same as the main (google how to do this, have to press some key combination I think)

CAT-THE-FIFTH · 14 Oct 2014 at 15:48

Thankd stulid - the system only literally boots for 0.25 seconds and switches off - so not even a splash screen!

stulid · 14 Oct 2014 at 15:52

Does it boot with just a single stick of RAM fitted and no drives/gfx card.

wazza300 · 14 Oct 2014 at 15:54

try pressing front case button and soon as fans spin/mb lights light up switch off as fast as poss at the rear psu switch

do that two or three times then let the pc powerup normally

it could be a corrupted main bios

sleep resume problems are usually ram setting/voltage related or bios bug

CAT-THE-FIFTH · 14 Oct 2014 at 16:02

Thx again.Even with one ram stick and just the cooler and no gfx card it just momentarily boots and shuts off.

stulid · 14 Oct 2014 at 16:11

Board is fubar'd

wazza300 · 14 Oct 2014 at 17:26

did you try the switching on/off above?

CAT-THE-FIFTH · 14 Oct 2014 at 18:20

Did it a few times and then the board stops starting up and I need to unplug the PSU for a few seconds before it shows any life again.

wazza300 · 14 Oct 2014 at 18:24

try an overnight cmos clear,that can work sometimes

leave board unplugged from the wall aswell

CAT-THE-FIFTH · 14 Oct 2014 at 20:10

Thanks again. Will try that. ATM it appears socket 1155 mmini-ITX MBS are not easy to get. Only one site who uses crap del companies does meaning it might until Monday I don't have a computer. Not happy at all.

stulid · 14 Oct 2014 at 20:11

That still has warranty, so get it fixed.

CAT-THE-FIFTH · 14 Oct 2014 at 22:32

I thought it might be out of warranty as I got it in April 2011??

stulid · 14 Oct 2014 at 22:37

Didnt think it was that old to be honest.

Time flies.

CAT-THE-FIFTH · 19 Oct 2014 at 13:20

I ended up ordering an ASRock B75M-ITX as a replacement. The Gigabyte equivalent sadly lacked E-SATA which I need and I could not find any new H77 or Z77 based mini-ITX motherboards for under £100!!

CAT-THE-FIFTH · 20 Oct 2014 at 13:42

System works OK with the new motherboard - seems the ASRock has a socketed BIOS chip too.