Keeps saying "No Signal"

[radar]

I was playing CoD 5 and all of a sudden the screen goes black and I get the "No Signal" message on both monitors, it started the other day like the card is giving up but its new.

It is slightly overclocked at 800/870 and my processor is clocked at 2.8 from 2.2.

Any ideas?

New thread HERE

[watercooled]

Does the computer switch off (fans stop spinning, for example) and are you able to boot again straight away or do you have to leave it for a while?

[radar]

It dosen't cut out just no signal is sent to the monitors and I can boot straight away.

[watercooled]

Have you installed the latest drivers for your graphics card?

[watercooled]

I've just noticed in your hardware list that you're using 512MB of DDR and 1GB of DDR2. Are you sure that's right? This motherboard only supports DDR.

[TAKTAK]

Did you stability test the OC or did you just jump straight into it?

[radar]

I've just noticed in your hardware list that you're using 512MB of DDR and 1GB of DDR2. Are you sure that's right? This motherboard only supports DDR.

I have checked and your right, they're both DDR.

[radar]

Did you stability test the OC or did you just jump straight into it?

Bulit up in large chunks.

Have you installed the latest drivers for your graphics card?

Yes

[watercooled]

I don't think it's likely to cause a blank screen, but is your CPU/GPU overheating? Try logging the temps while playing a game or running load software. Try furmark for loading your GPU. Post your temps.

[radar]

I don't think it's likely to cause a blank screen, but is your CPU/GPU overheating? Try logging the temps while playing a game or running load software. Try furmark for loading your GPU. Post your temps.

I use HWMonitor.
CPU: Idle - 35 Min, Load - 49 Max
GPU: Idle - 51 Min, Load - 78 Max

It was around 71 Max on GPU load but I tried to remove the red casing and I think I might of interrupted the thermalpaste. Also there are some pads, possible thermal sticky pads on the back headspreader which I've took of breaking the seal.

[watercooled]

I'm not entirely sure of the max temps for that GPU, but that doesn't seem too high. CPU looks ok, too. Try returning CPU/GPU to stock speeds for a while and see how that goes. You should be able to re-install the heatsink, IPA or Arcticlean should remove what's left of the thermal pads and you can use your preferred thermal paste to apply to the GPU - I use MX2.

[radar]

Earlyier I alt tabbed CoD, went to go back on to exit and I got BSOD! Didn't have time to read the error as I had to go out. This help diagnose?

[watercooled]

Not something I've heard of before TBH. Try reposting this thread here: http://forums.hexus.net/help-technical-advisory/ - more people read that section so you're more likely to get a response. Sorry I couldn't help more.

[Jay]

this sounds like core overheat to me.