Bitcoin Forum

Bitcoin => Mining support => Topic started by: Sjalq on July 29, 2011, 07:27:15 AM

Title: GPU 0 keeps locking up machine
Post by: Sjalq on July 29, 2011, 07:27:15 AM

Hi folks,

I have 2 x 6990s (so 4 GPUs) running Windows 7, Catalyst 11.7, GuiMiner (newest one)

The miner keeps locking up if I activate GPU 0.

I have set the clock back down but the cards are still bios oc'd and at +20% power under AMD Catalyst. That did not work.
The problem started shortly after upgrading from Catalyst 11.4

Please help or give suggestions

Title: Re: GPU 0 keeps locking up machine
Post by: staraptor on July 29, 2011, 05:41:10 PM

can you do a fresh install?

Title: Re: GPU 0 keeps locking up machine
Post by: Sjalq on July 30, 2011, 07:16:59 AM

I guess, just a lot of schlep. Would probably work though, thanks.

Title: Re: GPU 0 keeps locking up machine
Post by: hmblm1245 on August 07, 2011, 03:45:29 AM

make sure to turn off areo. i also noticed that if i use 11.7 without dummy plugs it locks.

Title: Re: GPU 0 keeps locking up machine
Post by: Sjalq on August 08, 2011, 07:44:39 AM

Thanks man,

Stupid Question, I take it dummy plugs are...?

Title: Re: GPU 0 keeps locking up machine
Post by: hmblm1245 on August 08, 2011, 03:56:52 PM

used to power on the gpu when no monitor is connected

http://www.overclock.net/folding-home-guides-tutorials/384733-30-second-dummy-plug.html

Title: Re: GPU 0 keeps locking up machine
Post by: Sjalq on August 08, 2011, 04:09:08 PM

Thanks,

Any ideas why it would work with Aero on and GPU 0 not mining and there is no dummy plug? Sorry to sound so vapid, but I'm not sure what the interactions here are.

Title: Re: GPU 0 keeps locking up machine
Post by: hmblm1245 on August 08, 2011, 06:21:26 PM

gpu0 is plugged into the monitor or it is the default primary gpu and will always be free to mine on. gpu 1,2,3,4... and so on are secondary and need dummy plugs for the most part. Others on the forums have stated that they do not need dummy plugs with 11.7 but i found that it is still a good idea. Try installing 11.6 and see if that creates a stable environment. What power supply are you using to power those cards?