flatlyna Posted January 31, 2007 Share Posted January 31, 2007 So after selling my 7900GTO and trying a Powercolor x1950Pro (which gave me res changes, but no acceleration) I decided to gamble again and get a full-on Sapphire x1950xtx. Thankfully it is fully supported for CI QE and Rotation (will check sleep and dual monitor later) - it has a deviceid of 7240 so I didn't need to make changes at all to ATIRadeonX1000.kext etc. I'm using Natit auto on a Semthex 10.4.8 sf9 kernel. Only issue is that the fan on the card runs full speed which is noisier than I'd like. At this stage I'm assuming its because the GUI is effectively in 3d mode on the card and at maximum core/mem speed whereas when in windows the card is clocked lower for 2d dynamically changing when going to 3d. Now under gaming on the pc side the gpu core is at about 80C which I will work on lowering with a slight case fan change, and If I can succeed in lower temps perhaps the card might drop its fan speed in OSX. I guess the last option is to see if there is an OSX util out there to set the core clock and/or fan speed manually. Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/ Share on other sites More sharing options...
nagal Posted January 31, 2007 Share Posted January 31, 2007 Ohhhh! I have been wanting to get a X1950XTX card but dual monitor support is a must! Please keep us updated. Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-290161 Share on other sites More sharing options...
belgrano Posted February 2, 2007 Share Posted February 2, 2007 flatlyna, having the same video card myself, I was unable to find the solution for lowering the fan speed. Placing a case fan will not help (I have 2 case fans running), so I presume OS X is forcing the card fan to run at full speed (which is not a good thing). Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-292266 Share on other sites More sharing options...
roger santos Posted February 3, 2007 Share Posted February 3, 2007 flatlyna, having the same video card myself, I was unable to find the solution for lowering the fan speed.Placing a case fan will not help (I have 2 case fans running), so I presume OS X is forcing the card fan to run at full speed (which is not a good thing). i have same problem here =( Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-292433 Share on other sites More sharing options...
BarryBar Posted February 3, 2007 Share Posted February 3, 2007 The other day whe looking for a solution for my problem with a x1950 pro card I came across this link http://aarongyes.com/guides/atidisplays This is a download link on this site to a ATI tool you all could maybe use with the X1950 XTX. Maybe that could do something about the fan spinning at full speed. Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-292951 Share on other sites More sharing options...
flatlyna Posted February 4, 2007 Author Share Posted February 4, 2007 Thanks for the feedback on the fan issue - I've solved the noise problem by changing to an Arctic Cooling Accelero X2. Not only is it near silent, it runs about 20 degrees cooler than before under load, and the core idles around 47 degrees. Still havent had a chance to try multi monitor yet... I will get round to it ;-) Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-293145 Share on other sites More sharing options...
belgrano Posted February 4, 2007 Share Posted February 4, 2007 (edited) OK, then you're set with the noise issue. My question to you: is the vcard fan still running at full speed? And you just don't hear it because of the case... Or is it spinning slower? I'm looking for a solution to make the fan spin slower (it must be one, since without Natit the fan is running at a normal speed)... And another question to you, flatlyna (sorry for being off topic): is RealtekR1000.kext causing kernel panics to your hackint0sh? Edited February 4, 2007 by belgrano Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-293559 Share on other sites More sharing options...
flatlyna Posted February 5, 2007 Author Share Posted February 5, 2007 (edited) Yes, the fan is running full speed, only the Accelero X2 is so quiet its not an issue. Without Natit, QE and CI are not enabled and therefore the card is running in 2d mode with reduced core and memory clocks plus voltage, so the fan is slowed dow to limit the noise. With Natit and full acceleration the core volts goes up, along with the core and memory speeds and the fan therefore runs faster. Edited February 5, 2007 by flatlyna Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-294511 Share on other sites More sharing options...
belgrano Posted February 6, 2007 Share Posted February 6, 2007 (edited) Well, I don't know about you, but I had QE and CI before installing Natit (and a lot of mouse tearing, of course). Natit is basically enabling resolution changing and display rotation (I'm not sure about dual display) so I don't see why the fan should run at full speed... Edited February 6, 2007 by belgrano Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-295152 Share on other sites More sharing options...
XpLoiT Posted February 26, 2007 Share Posted February 26, 2007 fyi, my experience with this was perfect (apart from fan speed) has there been any update on this? i dont think the chip is running that hot, but it think its just that it has no control over the fan. Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-311570 Share on other sites More sharing options...
Astyanax Posted April 21, 2007 Share Posted April 21, 2007 Don't mean to bump an old thread but im having this problem too. Is it really that bad for it to be running full speed? I've done it in Windows before and the temps where lowered pretty quickly, only issue is the noice. The temps im sure are alot lower and its not overheating, after running OS X for a few hours I shut down and my video card was not warm to the touch - if anything it was cooler than usual. I heard nothing about it being bad after searching around for a good hour. So im guessing no news is good news? (Oh and the card if anyones wondering is a connect3D X1950 XTX) Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-351017 Share on other sites More sharing options...
meatloaf Posted May 8, 2007 Share Posted May 8, 2007 Hello all I too am having the same problem and I am using a Gigabyte X1950XTX. From my own research I have come up with my own theory as to what might be happening. Basically the ATI Driver for OSX covers the X1950XT (available to mac), while this works with a X1950XTX my thinknig is that runs alot cooler than a X1950XTX. When the drivers is installed is basically is now able to take readings from the thermal sensor. When the driver see's that the card is running hotter than a X1950XT it attempt to cool it down by running the fans at full speed. The same thing occurs in Windows when playing games. When the card start to get hot it the driver will push the fan speed up in order to cool it down. So whats the difference between the Windows Driver and the OSX Driver. The windows driver has support for the X1950XTX and as such a different set of temperature values. As such the hard in windows has a different base expected temperature to the driver in mac. If I am correct then what we need to do is modify the driver so that it has a different set of expected temperatures. Well anyways this is just a theory but a good one to explain what we are seeing. Now what we need to do is get some people that are into Kext editing and confirm what I am saying Anyone interested in the challenge?, I'll be intereested in assisting with testing Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-361481 Share on other sites More sharing options...
IvanAndreevich Posted May 8, 2009 Share Posted May 8, 2009 Hello all I too am having the same problem and I am using a Gigabyte X1950XTX. From my own research I have come up with my own theory as to what might be happening. Basically the ATI Driver for OSX covers the X1950XT (available to mac), while this works with a X1950XTX my thinknig is that runs alot cooler than a X1950XTX. When the drivers is installed is basically is now able to take readings from the thermal sensor. When the driver see's that the card is running hotter than a X1950XT it attempt to cool it down by running the fans at full speed. The same thing occurs in Windows when playing games. When the card start to get hot it the driver will push the fan speed up in order to cool it down. So whats the difference between the Windows Driver and the OSX Driver. The windows driver has support for the X1950XTX and as such a different set of temperature values. As such the hard in windows has a different base expected temperature to the driver in mac. If I am correct then what we need to do is modify the driver so that it has a different set of expected temperatures. Well anyways this is just a theory but a good one to explain what we are seeing. Now what we need to do is get some people that are into Kext editing and confirm what I am saying Anyone interested in the challenge?, I'll be intereested in assisting with testing That can't be right. X1950XTX doesn't run much hotter than the X1950XT. It's just that the driver doesn't have support for the card. Perhaps it cannot read the temperature at all from it. Maybe for another reason. Nevertheless, it's just setting the fan to 100% throttle. Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-1150825 Share on other sites More sharing options...
shaun2312 Posted July 28, 2009 Share Posted July 28, 2009 That can't be right. X1950XTX doesn't run much hotter than the X1950XT. It's just that the driver doesn't have support for the card. Perhaps it cannot read the temperature at all from it. Maybe for another reason. Nevertheless, it's just setting the fan to 100% throttle. I guess there is still nothing we can do about the 100% throttle speed on the fans of the 1950XTX? Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-1211178 Share on other sites More sharing options...
MrBlomski Posted October 27, 2009 Share Posted October 27, 2009 I guess there is still nothing we can do about the 100% throttle speed on the fans of the 1950XTX? Yes there is, I did make the x1950xt fanless. I thought it was a zalman cooler. Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-1312196 Share on other sites More sharing options...
shaun2312 Posted October 28, 2009 Share Posted October 28, 2009 so only by replacing the fan? Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-1312659 Share on other sites More sharing options...
MrBlomski Posted October 28, 2009 Share Posted October 28, 2009 so only by replacing the fan? Yes, btw it was a thermalright. http://www.thermalright.com/new_a_page/pro...m#compatibility cheers next thing is to work this baby under SL. Link to comment https://www.insanelymac.com/forum/topic/40583-sapphire-x1950xtx-works-full-ci-qe-rotation-etc/#findComment-1312777 Share on other sites More sharing options...
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