dawiinci Posted March 7, 2011 Share Posted March 7, 2011 Since I use C- an P-PowerStates from the new Chameleon RC5 I get much lower CPU temperatures. (similar to NullCPUPowermanagement.kext or removing AppleIntelCPUPowermanagement.kext) Are there more ways to make my system more energy efficient? Especially for my hot nVidia? Link to comment https://www.insanelymac.com/forum/topic/250671-more-energy-efficient-system/ Share on other sites More sharing options...
gyozadude Posted March 8, 2011 Share Posted March 8, 2011 I set my display to power off in 3 minutes, and I set my system to sleep (suspend to RAM) in 5 minutes. Because recovery is so quick, it's not a big deal to wake, which takes just 5 seconds or so, even on my Atom systems. The Atom has only one power state. No speed stepping. But at full power, it only consumes 29 Watts. Otherwise, just 2 watts sleeping. The other thing I did to save power was purchase Pico-PSU power supplies with Active PFC AC/DC converter bricks that average about 95% efficiency for my small systems, and for bigger systems, I use 80+ (bronze or better) certified PSUs, preferrably no higher than 3X the average idle power of the system. That can really save a bundle. I replaced an ATX12V psu recently that had a system averaging 129 Watts idle. After going with an 80plus PSU, it went down to just 79 Watts idle at the wall. Link to comment https://www.insanelymac.com/forum/topic/250671-more-energy-efficient-system/#findComment-1651830 Share on other sites More sharing options...
dawiinci Posted March 9, 2011 Author Share Posted March 9, 2011 Thanks for that. I already have a high efficient power supply. I think sending the computer to sleep is a good thing however I have to set it higher as it would sleep while watching some youtube video. Probably the largest remaining consumer is the graphics card. So if this could bee lowered while idle it would be very efficient. But as far as i know it is only possible by underclocking inside the VGA BIOS. Link to comment https://www.insanelymac.com/forum/topic/250671-more-energy-efficient-system/#findComment-1652097 Share on other sites More sharing options...
Gringo Vermelho Posted March 11, 2011 Share Posted March 11, 2011 Try this: Lower your clocks using nibitor (nvidia BIOS editor), save the BIOS to a file and have Chameleon load the modified BIOS. Then you can have your normal clocks in Windows and lower clocks in OS X. Use nvclockx to verify that it's working. Google/forum search for more info, I have never done this myself so I can't offer further help. Link to comment https://www.insanelymac.com/forum/topic/250671-more-energy-efficient-system/#findComment-1653226 Share on other sites More sharing options...
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