John Drescher wrote: > On Thu, Dec 18, 2008 at 10:56 PM, John Drescher <[email protected]> wrote: >> On Thu, Dec 18, 2008 at 6:08 PM, John Drescher <[email protected]> wrote: >>> On Thu, Dec 18, 2008 at 6:01 PM, Rune Petersen <[email protected]> wrote: >>>> Hi, >>>> >>>> I know this is a little off topic, but... =) >>>> >>>> >>>> Does anyone have an idea as to how much power a PVR-150 or an PVR-500 >>>> draws from the PCI bus? >>>> >>>> I have a pet project with tight power requirements. >>>> >>> Less than 10W. I can test this today if you want a more accurate number. >>> >> PVR500 = 8W at idle ( measured at the wall using kill a watt meter) is >> added to my Q9550 system (1 kworld 115 + 3 sata hard drives + nvidia >> gforce 7200 + 6GB memory with cpu at idle) with the card added versus >> not in the system. I can try recording something and get new numbers >> if you want. Before pvr500, 110W after 118W. >> >> https://www.chooserenewables.com/xcart/product.php?productid=16154&cat=266&page=1 >> > > 10W total with the ivtv driver loaded. No difference if the device is > recording or not. I tried 2 channels. > cat /dev/video1 > test1 > cat /dev/video2 > test2 > > This # would include any added cpu and disk load as well. Obviously > there was not much.. > > John >
Thank you for the numbers and sorry for not replying sooner. The power constraint is measured at the psu. so a rough estimate for an PVR-500 would be: When powering up: 7W After driver has loaded: 8W It's is a bit tight considering I only have 20 Watts to play with, but it will be fun to try. Again thank you for your help. Rune Petersen _______________________________________________ ivtv-devel mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-devel
