GPU Crash and Random no Signal on Boot

[magentrecio]

PC:
FX8350
R9 280x TriX Shappire
Corsair CX 750M
All stock, no OC

Hi Guys!

I have a problem with my GPU. Sometimes, when i start some game my gpu crash and shows the following:

Fortnite: Instantly when loading the game menu

CS:GO: In about 15 minutes playing

League of Legends: No Crash

OCCT: Crash in 1- 10 seconds.

Valley Benchmark: 5 - 15 seconds

sometimes, suddenly my pc is normal, and I can play often as many hours as I want, or do a stress test of 2 hours with occt, put the gpu at 86 degrees and nothing happens.

When my gpu crash, i can't do nothing, only restart the pc. When i do that, i get no signal on display, but the leds on keyboard are on.

I tried with another GPU (HD4670) and works perfectly.
I tried to put hd4670 in the pciex16 and the r9 280x in pciex4, gpuz detects the r9 280x, sometimes it detects the mhz it currently works on and the temperatures, and sometimes it does not.
Temperatures its fine.

For now the gpu does not give a signal.

 

[scout_03]

use gpu-z rendering to stress test gpu and use hwinfo to check the temp on it with fan speed and voltages .

 

[magentrecio]

use gpu-z rendering to stress test gpu and use hwinfo to check the temp on it with fan speed and voltages .

For now the gpu does not give a signal

 

[scout_03]

try to reseat it on the motherboard and made sure it have power also see if you could use another cable from it to monitor .

 

[magentrecio]

try to reseat it on the motherboard and made sure it have power also see if you could use another cable from it to monitor .

I tried it, with other cables and other monitor. Cleaned CMOS too. Cleaned gpu. Test memory by memory too...

 

[scout_03]

in occt did you stress test psu and if you could try this gpu in another system .

 

[magentrecio]

in occt did you stress test psu and if you could try this gpu in another system .

yeah i did, and its the same, sometimes crash and sometimes no crash, Since 3 days, crash all time, but this happened months ago too and solved without doing anything.

 

[scout_03]

then i would try to use another psu in system for test .

 

[magentrecio]

then i would try to use another psu in system for test .

I have one, but this one no have x2 8 pin conector. So i tried this:
I conect my PSU to the GPU, and the other PSU to Mother Board, but still without signal. I do not tried this to OCCT stress.

 

[scout_03]

you need to get a psu that could handle it on power for test see specs http://www.sapphiretech.com/productdetial.asp?pid=A70D30F5-C1A1-4D75-91B0-29C4DA612103&lang=eng you might want to try in a shop for having it test and if it is under waranty then ask rma after ,