It seems that a lot of GPU problems revolve around specific versions of drivers. Though NVidia has their own support structure, you can often learn from information reported by others who fold.
******************************* Date: 2014-10-28 *******************************
14:17:10:WU00:FS01:Connecting to 171.67.108.200:80
14:17:10:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.200:80': Empty work server assignment
14:17:10:WU00:FS01:Connecting to 171.67.108.204:80
14:17:10:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.204:80': Empty work server assignment
14:17:10:ERROR:WU00:FS01:Exception: Could not get an assignment
15:32:25:WU00:FS01:Connecting to 171.67.108.200:80
15:32:28:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.200:80': Empty work server assignment
15:32:28:WU00:FS01:Connecting to 171.67.108.204:80
15:32:29:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.204:80': Empty work server assignment
15:32:29:ERROR:WU00:FS01:Exception: Could not get an assignment
15:34:01:WU00:FS01:Connecting to 171.67.108.200:80
15:34:05:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.200:80': Empty work server assignment
15:34:05:WU00:FS01:Connecting to 171.67.108.204:80
15:34:07:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.204:80': Empty work server assignment
15:34:07:ERROR:WU00:FS01:Exception: Could not get an assignment
15:36:39:WU00:FS01:Connecting to 171.67.108.200:80
15:36:42:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.200:80': Empty work server assignment
15:36:42:WU00:FS01:Connecting to 171.67.108.204:80
15:36:43:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.204:80': Empty work server assignment
15:36:43:ERROR:WU00:FS01:Exception: Could not get an assignment
15:39:27:WU00:FS01:Slot ID 1 no longer exists and not yet downloaded, dumping
15:39:27:WU00:FS01:Cleaning up
15:40:10:WU00:FS01:Connecting to 171.67.108.200:80
15:40:10:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.200:80': Empty work server assignment
15:40:10:WU00:FS01:Connecting to 171.67.108.204:80
15:40:14:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.204:80': Empty work server assignment
15:40:14:ERROR:WU00:FS01:Exception: Could not get an assignment
15:40:14:WU00:FS01:Connecting to 171.67.108.200:80
15:40:14:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.200:80': Empty work server assignment
15:40:14:WU00:FS01:Connecting to 171.67.108.204:80
15:40:15:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.204:80': Empty work server assignment
15:40:15:ERROR:WU00:FS01:Exception: Could not get an assignment
15:41:14:WU00:FS01:Connecting to 171.67.108.200:80
15:41:14:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.200:80': Empty work server assignment
15:41:14:WU00:FS01:Connecting to 171.67.108.204:80
15:41:14:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.204:80': Empty work server assignment
15:41:14:ERROR:WU00:FS01:Exception: Could not get an assignment
15:42:51:WU00:FS01:Connecting to 171.67.108.200:80
15:42:51:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.200:80': Empty work server assignment
15:42:51:WU00:FS01:Connecting to 171.67.108.204:80
15:42:52:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.204:80': Empty work server assignment
15:42:52:ERROR:WU00:FS01:Exception: Could not get an assignment
15:45:28:WU00:FS01:Connecting to 171.67.108.200:80
15:45:28:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.200:80': Empty work server assignment
15:45:28:WU00:FS01:Connecting to 171.67.108.204:80
15:45:30:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.204:80': Empty work server assignment
15:45:30:ERROR:WU00:FS01:Exception: Could not get an assignment
15:49:42:WU00:FS01:Connecting to 171.67.108.200:80
15:49:43:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.200:80': Empty work server assignment
15:49:43:WU00:FS01:Connecting to 171.67.108.204:80
15:49:43:WARNING:WU00:FS01:Failed to get assignment from '171.67.108.204:80': Empty work server assignment
15:49:43:ERROR:WU00:FS01:Exception: Could not get an assignment
Hardware configuration: Intel i7-4770K @ 4.5 GHz, 16 GB DDR3-2133 Corsair Vengence (black/red), EVGA GTX 760 @ 1200 MHz, on an Asus Maximus VI Hero MB (black/red), in a blacked out Antec P280 Tower, with a Xigmatek Night Hawk (black) HSF, Seasonic 760w Platinum (black case, sleeves, wires), 4 SilenX 120mm Case fans with silicon fan gaskets and silicon mounts (all black), a 512GB Samsung SSD (black), and a 2TB Black Western Digital HD (silver/black).
Not the answers i wanted, but glad to have AN answer. Thanks.
I Probably came across the answer without realizing that the 'core11' reference was relevant to me.
I'll look for a thread recommending a compatible $100-$150 GPU and see what i find.
Hardware configuration: Intel i7-4770K @ 4.5 GHz, 16 GB DDR3-2133 Corsair Vengence (black/red), EVGA GTX 760 @ 1200 MHz, on an Asus Maximus VI Hero MB (black/red), in a blacked out Antec P280 Tower, with a Xigmatek Night Hawk (black) HSF, Seasonic 760w Platinum (black case, sleeves, wires), 4 SilenX 120mm Case fans with silicon fan gaskets and silicon mounts (all black), a 512GB Samsung SSD (black), and a 2TB Black Western Digital HD (silver/black).
StevieTM wrote:Does this mean my GTX295 GPU is also not supported anymore??
StevieTM
Maybe.
There was an End-of-life announcement some time back with an indeterminate date. That meant that support would start to dwindle. No new projects would be coming on-line and eventually there wouldn't be any more work that would run on the old platform. Unfortunately there hasn't been (and might not be) an official "No more support effective today" announcement.
You can read in the Beta forum some reports of beta-testers getting Core_15 on pre-Fermi nVidia cards, but no official announcement has been made about this test or it going forward into general release. And Core_15 is also in its end of life period as well. A previous release a bit over a year ago of Core_15 work to pre-Fermi cards in general did not go well, many would error out instead of processing WU's. It was not clear then which cards were usable for Core_15 and which were not. Unfortunately the newer GPU folding cores require features not present in these older cards.
iMac 2.8 i7 12 GB smp8, Mac Pro 2.8 quad 12 GB smp6
MacBook Pro 2.9 i7 8 GB smp3