System will hang after 10mins of Mining (Litecoin)

[Lolbbqcabbage]

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.

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[blobzorz]

You can try checking Windows event logs for the cause, or the AMD 13.5 beta driver.

[bluebard]

I had that happen with bitcoin - the card was overheating. had to force the fan to go 90%

[Lolbbqcabbage]

You can try checking Windows event logs for the cause, or the AMD 13.5 beta driver.

Nothing in-terms of errors or notifications. Just the standard Audit and Information stuff. Trying 13.5 now.

I had that happen with bitcoin - the card was overheating. had to force the fan to go 90%

All temps are fine, 75 Celsius for 7950 71 for 6870

When it does work for atleast 10mins I get massive fluctuations..
https://i.imgur.com/F2LCAOZ.png

[bluebard]

All temps are fine, 75 Celsius for 7950 71 for 6870

When it does work for atleast 10mins I get massive fluctuations..

Run this:  http://windows.microsoft.com/en-us/windows7/diagnosing-memory-problems-on-your-computer

If it passes, run it again in "extended mode" - let it go overnight.

It could be bad ram, ram/cpu overheating, etc. If so this test will probably catch it.


If it works, my BTC tipping jar : 1JyivhtfaXzo7V9nY7EcfegfV2nbsnqfyf
 

[burning7950]

I've had similar trouble with the 13.4 drivers on my 7950... now I use the 12.8 drivers and it runs.
Use the tool from amd website to delete the 13.4 driver than install the 12.8 ones.