Swiblet Posted January 23, 2010 Share Posted January 23, 2010 Hey there, guys C: I'm new to posting here, but so many tutorials and comments have helped me get my Hackintosh working right, I feel like I live here by now xD This is one issue I haven't been able to see the answer for, though, anywhere I search. Recently, I got a water cpu block cooler for my i7 920. I disabled Speedstep in the BIOS to keep my mac running without kernel panics. I overclocked my chip to 4.08 ghz. I also disabled Hyperthreading to keep the chip cooler (hyperthreading raises the temps by about 10 degrees celsius on average). Right now, my base clock is at 190, my maximum cpu multiplier is at 20 (which is the maximum my dx58so board will let me go), and according to the bios, my cpu is at 4.18 ghz. Temps idle around 55 degrees celsius and go no higher than 84 degrees with prime95 for hours on end. ....However, my Mac OSx Leopard 10.5.8 thinks that my processor is only running at 3.84 ghz :/ The "about this mac" section says that. It also tells me that my ddr3 1600 mhz memory is ddr2 667 mhz, which I've heard is just an inaccuracy of the system, so I disregarded that and downloaded CPU-X...which also says my processor is going at 3.84 ghz. Can someone tell me how to make my operating system stop downclocking my i7? :C That .3 ghz is driving me nuts! Thanks a lot c: ~~B3N Link to comment https://www.insanelymac.com/forum/topic/208616-downclocking-i7/ Share on other sites More sharing options...
Swiblet Posted January 23, 2010 Author Share Posted January 23, 2010 Never mind xD I found out what the problem is. For anyone that's curious, my processor wasn't being downclocked at all - it was actually never running at the speed that my motherboard said in the first place. I had to turn Turbo Boost off, because the maximum turbo speed is what the motherboard shows, but it only happens when I really really need it. And apparently, the mac doesn't recognize turbo boost. So when my motherboard reported 4 ghz, it was really running at 3.7 ghz with ROOM to jump to 4 ghz whenever it felt like it. I turned of turbo boost and my motherboard readings went back down to what the OS reports. I had to overclock my base clock to 198 to reach 4 ghz, and it's quite stable now. And I'm well aware that this isn't an OSX problem now. Sorry for the post in the wrong section, but obviously, I had no way of knowing until I figured it out. ~~B3N Link to comment https://www.insanelymac.com/forum/topic/208616-downclocking-i7/#findComment-1393866 Share on other sites More sharing options...
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