Wrong clock rate in task overview

Message boards : Graphics cards (GPUs) : Wrong clock rate in task overview

Author	Message
X1900AIW Send message Joined: 12 Sep 08 Posts: 74 Credit: 23,566,124 RAC: 0 Level Scientific publications	Message 5662 - Posted: 16 Jan 2009 \| 7:09:18 UTC
	This morning I controlled last WU and saw a wrong clock rate (GTX 260/192): 221266 # Device 0: "GeForce GTX 260" # Clock rate: 1512000 kilohertz It must be 1500000 like before, I did not changed anything, the clock rates are flashed, but I fix the fans, if there is no need to higher speed (in winter). Where do the reported clock rates come from, driver ? P.S. The change during a running WU from (the same as above) GTX 260/192 to 9800GX2 was recognized correct, with success, see 219774. Great.
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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	Message 5664 - Posted: 16 Jan 2009 \| 8:19:45 UTC - in response to Message 5662.
	Yes, clocks must be somehow read out from the driver. I don't know why your setting changed, but one thing is for sure: you can not have 1.500 GHz. The shader clock is set in multiples of 54 MHz, so you can either have 1.458, 1.512 or 1.566 GHz and nothing in between. Usually the software (GPU-Z, GPU-Grid) shows you the clock which is requested from the driver. RivaTuner and I think Everest show you the real clock. BTW the core clock is set in multiples of 27. So I don't know why your clock apparently changed, but now you see a correct value. MrS ____________ Scanning for our furry friends since Jan 2002
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X1900AIW Send message Joined: 12 Sep 08 Posts: 74 Credit: 23,566,124 RAC: 0 Level Scientific publications	Message 5666 - Posted: 16 Jan 2009 \| 9:14:10 UTC - in response to Message 5664.
	Hm, ... GPU-Z shows me 1500, Rivatuner indeed 1512 MHz. O.k. I understand. In former task-views I found 1500, on this computer I forgot updating the driver yesterday (177.84 instead of 180.84), that could be the cause, thanks for your answer !
	ID: 5666 \| Rating: 0 \| rate: / Reply Quote

Message boards : Graphics cards (GPUs) : Wrong clock rate in task overview

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