Bitcoin Forum

Bitcoin => Mining support => Topic started by: myself on August 04, 2011, 07:14:20 PM



Title: del
Post by: myself on August 04, 2011, 07:14:20 PM
del


Title: Re: ok so i got 18 GPU on my rig
Post by: haploid23 on August 04, 2011, 07:43:17 PM
what do you mean shows 18 GPU? does it show this in the CCC or device manager? if you're using the latest drivers, it shouldn't have this problem. maybe try to uninstall all AMD drivers, use drive sweeper to wipe everything clean, and install the latest drivers again

lol when i read the title, i though you somehow got 18 GPUs to mine in one rig, which is pretty much impossible right now with the driver limitation. current AMD drivers can only address 8 GPUs right now, so i expected to see something crazy in this thread... but guess not haha


Title: Re: ok so i got 18 GPU on my rig
Post by: phorensic on August 05, 2011, 03:35:41 AM
You have a motherboard with 18 pci express slots?


Title: Re: ok so i got 18 GPU on my rig
Post by: Reckman on August 05, 2011, 02:48:22 PM
This is normal ATI does this to support multiple displays for each card, what os are you on? What's not working?


Title: Re: ok so i got 18 GPU on my rig
Post by: CanaryInTheMine on August 12, 2011, 09:56:59 PM
Cool!  fire up the miners! LOL


Title: Re: ok so i got 18 GPU on my rig
Post by: c_k on August 21, 2011, 07:32:45 PM
The ATI divers dO not support more than 8 GPU's per machine :)


Title: Re: ok so i got 18 GPU on my rig
Post by: Jack of Diamonds on August 23, 2011, 06:57:57 PM
The ATI divers dO not support more than 8 GPU's per machine :)

Yep. Though he did not claim to run that many (he said it's a display bug), ATI/AMD does not support this.

Nvidia does support ~16 gpus for parallel processing tasks like SETI@home
but even then you need 8 dual gpus (& nobody mines bitcoins on nvidia cards seriously),

and there is maybe 1 motherboard that even has that many pci-e slots (MSI BB Marshal)


Title: Re: ok so i got 18 GPU on my rig
Post by: fitty on August 24, 2011, 02:35:00 AM
somehow ati crap vision have a good vision and show me 18 gpu on my rig but i got only 6


is there any way to fix this crap ?

It's not 18 GPUs. You're seeing multiple entries for the same card. I noticed the same thing. On my rig with 4 cards there were 12 "ATI 6900 Series blah blah blah)" when you right clicked the ati system tray icon. I'm not sure why CCC does this and what the multiple entries actually do, but it's not actual GPUs.


Title: Re: ok so i got 18 GPU on my rig
Post by: max in montreal on August 24, 2011, 03:21:06 AM
same here, i think it sees something like 13 displays...I have 4 cards in the system, 3 dual gpu and one single,so 7 in total, but for some reason the machine can only use 5 to mine. Weird stuff too. I start mining with 4 then start on the 5th gpu, and some of the other hashrates on the other cards go down to about 90 or something weird like that. when i run linuxcoin all goes well, but really want to be using win 7. win xp 64 gives similar problems.