ATI GPUs?

Author	Message
PeteS Send message Joined: 19 Mar 09 Posts: 27 Credit: 117,670,452 RAC: 0	Message 34814 - Posted: 24 Dec 2009, 9:58:48 UTC - in response to Message 34793. I have 2 3870X2's so 4 gpu cores, however boinc and gpuz shows that only 2 gpus are being used, how can I sort this out? Are you running in SLI mode? Should be no. Have you extended your desktop to the other card? Required. Do you have a dummy plug in GPU number 2? Required on Vista and Win7. No dummy needed if destktop is extended. Tested & Works on Win7. ID: 34814 · Rating: 0 · rate: / Reply Quote

Sarge Send message Joined: 10 Nov 07 Posts: 441 Credit: 761,827 RAC: 0	Message 35103 - Posted: 5 Jan 2010, 20:56:22 UTC - in response to Message 34659. We are also helping him over at Collatz, trying to get a compatible driver installed at the moment. Still need help. See http://boinc.thesonntags.com/collatz/forum_thread.php?id=109&nowrap=true#5305. ID: 35103 · Rating: 0 · rate: / Reply Quote

Sarge Send message Joined: 10 Nov 07 Posts: 441 Credit: 761,827 RAC: 0	Message 36452 - Posted: 12 Feb 2010, 21:20:48 UTC - in response to Message 35103. We are also helping him over at Collatz, trying to get a compatible driver installed at the moment. Still need help. See http://boinc.thesonntags.com/collatz/forum_thread.php?id=109&nowrap=true#5305. One problem with my computer finally solved, after sending it back to HP. Now time to try with the GPU again. ID: 36452 · Rating: 0 · rate: / Reply Quote

Jeff Coleman Send message Joined: 12 Nov 07 Posts: 1 Credit: 8,533,497 RAC: 0	Message 36636 - Posted: 18 Feb 2010, 5:14:29 UTC Checked on the ATI Stream SDK site, and found that my graphics chip in my laptop (ATI Mobility radeon HD 4650) is on the list, but MW is griping about not having an ATI card with double precision. I'm using BOINC 6.10.18, Windows 7 Ultimate 64-bit. Is this because the Stream support (according to ATI) is in beta? Or do I need to download something extra to make the chip work right in double precision? Or does MW not support this chiptype? ID: 36636 · Rating: 0 · rate: / Reply Quote

kashi Send message Joined: 30 Dec 07 Posts: 311 Credit: 149,490,184 RAC: 0	Message 36637 - Posted: 18 Feb 2010, 5:32:40 UTC - in response to Message 36636. The HD 4650 does not have double precision capability necessary to process MilkyWay tasks. from: http://developer.amd.com/gpu/ATIStreamSDK/assets/ATI_Stream_SDK_Getting_Started_Guide_v2.0.pdf and http://milkyway.cs.rpi.edu/milkyway/forum_thread.php?id=1505 ID: 36637 · Rating: 0 · rate: / Reply Quote

arkayn Send message Joined: 14 Feb 09 Posts: 999 Credit: 74,932,619 RAC: 0	Message 36651 - Posted: 18 Feb 2010, 22:09:13 UTC - in response to Message 36636. Checked on the ATI Stream SDK site, and found that my graphics chip in my laptop (ATI Mobility radeon HD 4650) is on the list, but MW is griping about not having an ATI card with double precision. I'm using BOINC 6.10.18, Windows 7 Ultimate 64-bit. Is this because the Stream support (according to ATI) is in beta? Or do I need to download something extra to make the chip work right in double precision? Or does MW not support this chiptype? Looks like it is working fine for you over at Collatz though. We use 3800 series, 4770, 4800 series, 5800 series and 5900 series as they all support double precision. Collatz supports any ATI card from the 2400 up. ID: 36651 · Rating: 0 · rate: / Reply Quote