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Watch temperatures however **NOTE: Max for Sandy Bridge CPUs is 95c before they throttle themselves down, however, I try and keep it under 65C load**. Keep upping this until your system is stable and then stress test it with Prime95 or the like.
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it might be under Power Management) and instead of it being set to auto, set it at a value higher than what it is currently set to (which will be in dark blue to the left of the value you can change). In that case, find the VCore in the BIOS (I believe it is under MIT Voltage settings. If you up the multiplier past 42, you may start to experience instability. If you want to go more, however, then you just set the turbo multipliers to higher (I've gotten mine to 5.1ghz, but with higher VCore). That is the easiest way to get to 4.2ghz.
#Overclock mac pro tower series#
(42 is safe for almost any K series chip). From there, set your multiplier to the desired number. To get to the multiplier, enter the BIOS, select Motherboard Intelligent Tweaker (MIT) and then "Advanced frequency settings". CPU Voltage calibrator (or something like that, it's above the turbo options in that BIOS menu)īefore proceeding, make sure you have the latest Chimera installed (1.4.0 or later, found in the downloads section under Chimera), as overclocking via the base multiplier will not work on older versions Load Line Calibration (Under the voltage settings in MIT)Ģ. The other settings that you want set to ENABLED are:ġ. Intel has made it stupidly easy, especially on the K series chips. I would advise NOT doing any overclocking on the stock cooler.Īs far as overclocking Sandy Bridge CPUs, there are only two numbers you have to worry about.
#Overclock mac pro tower crack#
Be prepared to crack open your tower and clear the CMOS if it does not boot. Overclocking is an art which takes patience and time. So while I can sit here and preach what works for me and what can theoretically work, it is up to you guys to tweak and see exactly what settings work for you. Well, the problem with making an overclocking guide for 1155 CPUs is that all boards are different in how they react with different voltages, and all chips have different limits. Building a CustoMac Hackintosh: Buyer's Guide