Asus maximus iv extreme-z doesn't power on

leks983

Reputable
May 2, 2014
6
0
4,510
Hello,
couple of days ago, i started my pc, it booted and worked normally for a while, but i went afk for a moment, and when i came back it was turned off.
When i pressed power on button, nothing happened, so i switched psu off, and then after a while, back on and tried again. Only thing that happened was a single clicking sound and frontal fan led flashed for a split second. On the mb, bios leds and power/reset buttons are lit up.

I thought that my psu died, so i replaced it and tried again to same effect.After reading a bit about the issue on the internet, and trying to find solution, i tried reseating ram and cpu, again to no effect. After that, i removed gpu, and the pc booted up. I tried putting it in other pci-e slots, but it would only boot if i unplugged the 8pin power cables from the gpu( it requires 2 8pin cables, and it would only boot without any connected).

My configuration is
i7-2600k
asus maximus iv extreme-z
2x8GB corsair vengeance ddr3 1600
gigabyte nvidia geforce gtx 590
asus xonar phoebus
2 hdds, 5400rpm 2TB and 500gb 7200rpm
1 ssd
4 120mm fans
miscellaneous usb stuff (kb, mouse, game controllers)
old psu was 800w thermaltake tr2 800 something, new one is seasonic ss-760xp

To note, before the malfunction, pc worked without a hitch, and after psu change, all cables are connected properly. Also, when i removed the power cables from gpu and pc powered on, debug leds showed 55 error code.

Any ideas/sugestions would be greatly appreciated, or if anyone had similar issues and could identify whether it's mb or gpu(or something else) that's malunctioning. Problem is i don't have another mb or gpu at hand to test it and locate the problem myself.

Thanks,
Alex

 

leks983

Reputable
May 2, 2014
6
0
4,510
heya, thanks for the reply. Yea, i tried different cables, and tried several outlets, just in case, but still no luck.

Edit:
I did reinstall the ram, it's connected properly. I have modules sitting in a2 b2 because cpu fan covers the 1st slot. I tried removing one module at a time as well, but it didn't help.
 

leks983

Reputable
May 2, 2014
6
0
4,510
After some more extensive testing, plugging and unplugging components in all possible combinations, i'm sure that it's the gpu that's the problem.
Pc starts up with every other item, so i assume gpu short circuits. Luckily it's still under warranty for a few more months, so i'll try sending it for repairs.