Message boards : Graphics cards (GPUs) : GPUGRID is a hog on current: 34 amps
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 JStateson Send message Joined: 31 Oct 08 Posts: 186 Credit: 3,331,546,800 RAC: 0 Level  Scientific publications      | |
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Latest GPU-Z calculates current, at least for the gtx280. I am showing 27 amps for SETI CUDA -vs- 34 amps for GRID CUDA | |
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Paul D. Buck Send message Joined: 9 Jun 08 Posts: 1050 Credit: 37,321,185 RAC: 0 Level  Scientific publications  | |
Latest GPU-Z calculates current, at least for the gtx280. I am showing 27 amps for SETI CUDA -vs- 34 amps for GRID CUDA Except if you have CUDA it will also use the GPU at the same speed and draw ... | |
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ExtraTerrestrial Apes Volunteer moderator Volunteer tester  Send message Joined: 17 Aug 08 Posts: 2705 Credit: 1,311,122,549 RAC: 0 Level  Scientific publications | |
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How's the voltage of your GT200 chip? 1.12V? That's the highest for my 9800GTX+, so yous should be along these lines too. Assuming 1.12 V and 34 A means your card would be drawing 38 W. A figure suspiciously low, so I'm not sure if it actually tells us anything. | |
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JStateson Send message Joined: 31 Oct 08 Posts: 186 Credit: 3,331,546,800 RAC: 0 Level Scientific publications | |
How's the voltage of your GT200 chip? 1.12V? That's the highest for my 9800GTX+, so yous should be along these lines too. Assuming 1.12 V and 34 A means your card would be drawing 38 W. A figure suspiciously low, so I'm not sure if it actually tells us anything. Yea - you are correct. I didnt even see that 1.12 volt as I failed to scroll the display up. According to this thread at the gpuz forum, that is indeed the gpu core voltage and the 38 watts is what the gpu core pulls. The rest of the power (about 70 watts or so) is consumed by the memory. I have a 9800gtx+ on another system but it seems not to have a current sensor. | |
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Paul D. Buck Send message Joined: 9 Jun 08 Posts: 1050 Credit: 37,321,185 RAC: 0 Level Scientific publications | |
Latest GPU-Z calculates current, at least for the gtx280. I am showing 27 amps for SETI CUDA -vs- 34 amps for GRID CUDA I see I had earlier mis-read what you said... But this is also a little bit of apples and oranges comparison too ... the tasks for SaH are fairly small data wise and so would not necessarily place the same demands on the memory or the bandwidth of the memory system while computations are in progress which could account for the differences in power draw. To my mind it is also a question of what is of more importance to us ... finding little green men, or finding cures for diseases? Which would prove to be more useful to mankind in the near term? If the point is to keep the GPU draw low we should be turning the machines off when we are not doing work and forget this BOINC stuff ... :) I guess that might be an interesting side experiment this week... if I move my watt meter to the Q9300 I can watch it while I rip off some SaH tasks and then later recheck it when I put it back on GPU Grid ... and see what the difference is, if any, between the draw for the two projects ... | |
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Thamir Ghaslan Send message Joined: 26 Aug 08 Posts: 55 Credit: 1,475,857 RAC: 0 Level  Scientific publications | |
Latest GPU-Z calculates current, at least for the gtx280. I am showing 27 amps for SETI CUDA -vs- 34 amps for GRID CUDA Consider your self lucky, did'nt know about the new GPU-Z release until I've read your post, upgraded GPU-Z and now I'm reading between 50 to 55 amps on GPU grid. This is a stock GTX-280. Voltage: 1.1875 V Seti shows between 40 - 45 amps. Idle is 17-18 amps. | |
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ExtraTerrestrial Apes Volunteer moderator Volunteer tester Send message Joined: 17 Aug 08 Posts: 2705 Credit: 1,311,122,549 RAC: 0 Level Scientific publications | |
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To put things into perspective.. would any of you mind to log the current while running 3D Mark 2006 or Vantage (DX10)? I'd expect a surprisingly high number ;) | |
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I get: | |
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Message boards : Graphics cards (GPUs) : GPUGRID is a hog on current: 34 amps
