Salizar Posted August 5, 2010 Share Posted August 5, 2010 While Following the thread on the new NVidia Drivers, I noticed a conversation about Clock cycles being high on a NVidia GTS 250 (my card). I followed the instructions on how to diagnosis the clock speed and found that my card is running at full clock speed. There was a response from mitch_de explaining what to do to correct this issue. However based on the description I didn't believe that I needed to do the steps outlined during installation, has the video works and is running OpenGL and Quartz apps without issues. http://www.insanelymac.com/forum/index.php...t&p=1501747 To getting AGPM working , better visit other thread, too offtpic that driver thread.In short: You need 2 injectors (like AHCIPort) which are prepared for your gpu dev-id and Mac Type ID and put them into the /Extra/Extensions + .mkext. One config is much more easy , only one key (iMac5,1) > yours, And one gpu deviceID(0191) > yours. The other . plist is much bigger and has lots of iMac5,1 entries to change to yours ! Dont miss one to edit, otherwise no effect. Attached both , change my used iMac5,1 into yours (all occurences !) and gpu deviceid 0191 (only once) into yours My Systems specs are: Intel DP55WB i5 Processor NVidia GTS 250 Everything is working fine so far, except on board sound (I use a USB headset so no biggy) I just want to make sure I don't fry my video card, so any help would be greatly appreciated. Link to comment https://www.insanelymac.com/forum/topic/227703-just-installed-and-im-curious-if-im-burning-my-video-card-out/ Share on other sites More sharing options...
Gringo Vermelho Posted August 6, 2010 Share Posted August 6, 2010 You have two options: Try to get graphics powermanagement working via homerolled LegacyAGPM.kext Use Nibitor to permanently underclock your video card by modifying your video card BIOS Link to comment https://www.insanelymac.com/forum/topic/227703-just-installed-and-im-curious-if-im-burning-my-video-card-out/#findComment-1525509 Share on other sites More sharing options...
gazzanova Posted August 6, 2010 Share Posted August 6, 2010 nvclock has been recently ported to osx with this tool you can make adjustments to your nvidia video card such as change fan speed and also monitor temps http://www.projectosx.com/forum/index.php?showtopic=1246 Link to comment https://www.insanelymac.com/forum/topic/227703-just-installed-and-im-curious-if-im-burning-my-video-card-out/#findComment-1525510 Share on other sites More sharing options...
Salizar Posted August 6, 2010 Author Share Posted August 6, 2010 nvclock has been recently ported to osx with this tool you can make adjustments to your nvidia video card such as change fan speed and also monitor temps http://www.projectosx.com/forum/index.php?showtopic=1246 Thanks I've been playing around with this. nvclock doesn't appear to allow one to change the clock speed on a GTS 250. Unhandled init script entry with id '0x96' at 0xc7d8Error: NVClock doesn't offer lowlevel overclocking on NV50/G8x/G9x/GT200 hardware (yet). If you want to overclock your card using the Nvidia drivers instead add the line: Option "Coolbits" "1" to the screen or device section in your xorg.conf and then try NVClock again. But I've found another issue when looking at the output of nvclock, maybe someone could explain... -- General info --GPU clock: 300.856 MHz -- Shader info -- Clock: 1782.000 MHz -- Memory info -- Clock: 1101.600 MHz Signon message: NVIDIA GeForce GTS 250 VGA BIOS Performance level 0: gpu 300MHz/shader 600MHz/memory 100MHz/0.95V/100% Performance level 1: gpu 738MHz/shader 1782MHz/memory 1100MHz/1.20V/100% VID mask: 1 Voltage level 0: 0.95V, VID: 0 Voltage level 1: 1.20V, VID: 1 So I'm a bit confused here... The VID Mask is set to 1 which should be the highest power/Clock speed for the card... However the GPU is running at level 0 while the Shader and Memory clocks are running at VID mask 1 level. Either nvclock is reporting incorrectly or theres something else going on. When I opened up a OpenGL game on the machine, the GPU clock didn't increase... So, any help here would be really awesome. Link to comment https://www.insanelymac.com/forum/topic/227703-just-installed-and-im-curious-if-im-burning-my-video-card-out/#findComment-1525584 Share on other sites More sharing options...
Gringo Vermelho Posted August 9, 2010 Share Posted August 9, 2010 Read post #2 again Link to comment https://www.insanelymac.com/forum/topic/227703-just-installed-and-im-curious-if-im-burning-my-video-card-out/#findComment-1527225 Share on other sites More sharing options...
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