Hey guys,

So I went out of got a new GPU and PSU for my miner, chucked them in and installed drivers. After running GUIMiner -scrypt (Litecoin) for about 10mins the system would just black screen and become unresponsive. Any idea's on what could be causing the problem?

System: AMD phenom II x4 945
Mobo: Gigabyte GA-970A-UD3 (Rv 1.0)
PSU: (New) ThermalTake Smart 750w bronze
GPUs: Gigabyte HD 7950 (New)
GPU: MSI HD 6870

Using Catalyst 13.4 as drivers. I have tried switching PCI-E slots and it yields no difference, also in GUIMiner the 6870 forces it self to be [0-0] despite being on the bottom slot

Thank you for your time.