Crossfire causing shutdown

[whiteshadow2569]

Hi all.

 

This morning my computer started shutting down whenever I start a 3d application such as a game. It first started after a 30min game of anno2070 where it just completely shutdown then reboots. I tried relaunching the game but would shutdown as soon as the save loaded. I tried using furmark and the system would shutdown as soon as i pressed the start button but only if the full screen option was selected so I think it must be something to do with crossfire. I have tried running furmark on both cards by switching the primary display and without full screen both work absolutely fine so I don't think the cards are faulty. I haven't changed anything for quit a while so I don't know what could have started this.

The thing is that I had this exact same problem about 6 months ago that sort of just started then stopped a day or two later without me figuring out what was wrong.

My system is water cooled so I don't really want to go pulling it apart.If anyone can help me, it would be very much appreciated.

Thanks in advance.

 

Edit. I am using 2x R9 290's @ 1060mhz with stock voltage

Edited April 25, 2016 by whiteshadow2569

[Moonzy]

what psu are you using?

[whiteshadow2569]

I'm using a corsair ax860i. According to corsair link it never goes over about 740W at max load.

[whiteshadow2569]

Ok I think I found a solution.

I disabled the anti-surge function in the bios and now no more reboots. Not sure how safe this is for the hardware but at least its working now.

[MoraisGT]

Check the voltages.

 

Use aida64 for example, monitor the voltages both at stock and when under load.

[whiteshadow2569]

Just used gpu-z and ran furmark for a bit. Core voltage is around 1.125 to 1.133 but strangely, the 12v sensor reads at 11v when under load and around 11.63v during idle. Is this something I should be concerned about?