PC is ****** help desired

Energize · 15 Dec 2016 at 18:49

So my brothers desktop, (2500k, 8GB DDR3, ATI 6950 2GB), has decided to stop working, I've disconnected everything from the computer that is not necessary and I get no display.

The machine only powers on if I short the clear cmos jumpers. :confused:

The motherboard has no speaker connected so there are no sounds obviously. Now I have tested my GTX 960 4GB in his computer and there is still no display, if I put his GPU in my PC there is no display also the card just spins up to the max. So is his card and mobo *****?

One strange thing I've noticed is that the LED's on the fans are flickering, could this indicate a power issue?

Is he just better off buying a new 1151 mobo in the interests of getting back up and running again?

mickyflinn · 15 Dec 2016 at 19:08

If you have tested the gpu in 2 sytems and no display then its fair to say its broke, did he try the onboard graphics?

What psu does he have ?

Energize · 15 Dec 2016 at 19:10

There is no onboard. PSU is OCZ 700W. The pc has been working perfectly for about 5 years.

Doogles · 15 Dec 2016 at 19:22

I'd guess it's the PSU, had this issue before and swapping fixed it. I'd get a new motherboard post speaker for £2 and use that to see what you get, it could be the motherboard. Motherboard or PSU is my guess, if you have a PSU pull it and test it.

mickyflinn · 15 Dec 2016 at 19:23

What motherboard is it ?

Energize · 15 Dec 2016 at 19:23

So thinking of XFX Radeon RX 480 8GB, just need to find an 1151 motherboard now I guess.

EDIT - Just saw the replies, I may have a spare psu to test.

new boy · 15 Dec 2016 at 19:25

socket 1155 is sandy/ivy bridge

Energize · 15 Dec 2016 at 19:38

Yeah made a typo there, motherboard is gigabyte p67a-ud3-b3

Doogles · 16 Dec 2016 at 00:23

Energize said:
Yeah made a typo there, motherboard is gigabyte p67a-ud3-b3

I'd guess it'll be the PSU as it seems to be rather old and not that great when new, but the motherboard is the next possibility. Hopefully it will be the PSU considering LGA 1155 boards are expensive now.

Energize · 18 Dec 2016 at 21:51

Tried a different psu, didn't work. Had to install a new motherboard with onboard graphics, but the gpu still doesn't work so having to buy a new one. How can both the gpu and motherboard go at the same time? :confused:

Doogles · 19 Dec 2016 at 01:47

Energize said:
Tried a different psu, didn't work. Had to install a new motherboard with onboard graphics, but the gpu still doesn't work so having to buy a new one. How can both the gpu and motherboard go at the same time?

PSU could have overvolted and killed both, I've had mine (G2 1000w) go through 3 GPU's before I figured it out! Worked fine with a lower power card but when it took a card with 8/8 pin PCI-E it would fry it.