mac tosh Posted March 17, 2006 Share Posted March 17, 2006 somebody should try this app on a MBP: 'Rmclock' http://cpu.rightmark.org/products/rmclock.shtml it can control the cpu voltage and let you underclock it by adjusting speedstep. The purpose of undervolting is that the cpu runs cooler ( sometimes much cooler) .I've used this app for quite a while and it's totally safe. I use it on Intel M Centrinos and it works very well. Try undervolting it to around .85Volts (start higher and work down to this voltage (approximatley) -if it will be stable this low). It should help the temps. It will be running at 1GHZ at the lower voltage ,but as a test it will be usefull.(assuming it works at all) Normally these chips run at around 1.3V @ 2.0GHZ , and .98V @ 1GHZ (speedstep controls the feq). So you want to lower the .98V/1GHZ down as low as it will go while being stable ( usually a full volt lower is stable) With Centrinos i try incremental steps down to a voltage that is stable ( go to low and it will freeze) I can get Centrino ULV down to .7V and regular Centrinos to around .85V Note: undervolting is safe Link to comment Share on other sites More sharing options...
Neogeek Posted March 17, 2006 Share Posted March 17, 2006 http://www.pbus-167.com/chc.htm I am really curious if this program shows up anything because its one of the few programs that reports temp and has downclocking features for laptops Link to comment Share on other sites More sharing options...
ciparis Posted March 17, 2006 Share Posted March 17, 2006 http://www.pbus-167.com/chc.htm I am really curious if this program shows up anything because its one of the few programs that reports temp and has downclocking features for laptops I'm trying it now. It looks like the current version (1.10 beta 1) does not report temps successfully. It reports the CPU as Core Solo. It seems to be controlling speeds and voltages okay ( or at least reporting them as 1GHz / .98v at idle ). There's no fan control until the next version, it says. Link to comment Share on other sites More sharing options...
mac tosh Posted March 18, 2006 Author Share Posted March 18, 2006 bump Link to comment Share on other sites More sharing options...
mac tosh Posted March 19, 2006 Author Share Posted March 19, 2006 bump Link to comment Share on other sites More sharing options...
Brandon Roots Posted March 19, 2006 Share Posted March 19, 2006 somebody should try this app on a MBP: 'Rmclock' http://cpu.rightmark.org/products/rmclock.shtml it can control the cpu voltage and let you underclock it by adjusting speedstep. The purpose of undervolting is that the cpu runs cooler ( sometimes much cooler) .I've used this app for quite a while and it's totally safe. I use it on Intel M Centrinos and it works very well. Try undervolting it to around .85Volts (start higher and work down to this voltage (approximatley) -if it will be stable this low). It should help the temps. It will be running at 1GHZ at the lower voltage ,but as a test it will be usefull.(assuming it works at all) Normally these chips run at around 1.3V @ 2.0GHZ , and .98V @ 1GHZ (speedstep controls the feq). So you want to lower the .98V/1GHZ down as low as it will go while being stable ( usually a full volt lower is stable) With Centrinos i try incremental steps down to a voltage that is stable ( go to low and it will freeze) I can get Centrino ULV down to .7V and regular Centrinos to around .85V Note: undervolting is safe I have installed the utility on my MBP, and it doesn't seem to offer a selection to lower the voltage below 0.950V, only to raise it. I have installed the intel chihpset driver, and all of the CPU Model and Core info shows up correctly. Link to comment Share on other sites More sharing options...
mac tosh Posted March 19, 2006 Author Share Posted March 19, 2006 Very odd indeed. But it may just be the dual cores dont underVOLT lower than this. See if you can at least underCLOCK it. (below 1GHZ) You should be able to force it to stay at .95V which may cool things down under heavier load. ( as by default it will increase to 1.3V Approx.) the new version is suppose to support core-duo (as it shows) Link to comment Share on other sites More sharing options...
RKeeler Posted August 4, 2006 Share Posted August 4, 2006 I wrote and articel about this for Overclockers.com. Take a look at it: http://overclockers.com/tips1206/ Link to comment Share on other sites More sharing options...
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