Overclock Guide for GA-Z68X-UD3H-B3 with i7 2600K please?

Can someone give me a simple step by step guide on how to overclock my processor? I have never done this before and the tinkerer in me wants to try it. I've read this forum and other sites but it seems each one gives a little different story, maybe because there are different goals in mind. I just want to overclock to, say, 4.0 ghz or 4.2 ghz and see how it goes. Some people say to just leave everything as is except the mulitplier and everythings's good. Here are my specs:

Mobo: GA-Z68X-UD3H-B3
Processor: Core i7 2600K
Cooler: Scythe Mugen CPU cooler
Memory: Corsair Vengeance DDR3 1600 mhz (16GB)
Graphics: Sapphire AMD Radeon 6850

Thanks in advance for your consideration.

Elsewhere someone said:

I have the same CPU and mobo, and I could get to 4.5 GHz stable by just upping the multiplier and disabling turbo boost, C3/6, EIST, and C1E, no voltage changes needed.

Click to expand...

Should I try this or not?

i cant figure ssdt for the life of me

EddyMac said:

Can someone give me a simple step by step guide on how to overclock my processor? I have never done this before and the tinkerer in me wants to try it. I've read this forum and other sites but it seems each one gives a little different story, maybe because there are different goals in mind. I just want to overclock to, say, 4.0 ghz or 4.2 ghz and see how it goes. Some people say to just leave everything as is except the mulitplier and everythings's good. Here are my specs:

Mobo: GA-Z68X-UD3H-B3
Processor: Core i7 2600K
Cooler: Scythe Mugen CPU cooler
Memory: Corsair Vengeance DDR3 1600 mhz (16GB)
Graphics: Sapphire AMD Radeon 6850

Thanks in advance for your consideration.

Click to expand...

I'm very new around here, but this is my second Hackintosh. Thought I should share my experience:

I have the exact same MB/CPU/RAM combo. My only differentiation is the Gigabyte GV-R6870C Video Card. I have been reading EVERY post on this site and InsanelyMac inregards to OCing, and have beaten my head against the wall for three days now. The really infuriating thing is how <i>easy</i> everyone says SB overclocking is! Finally got it to work, here are my findings:

BIOS: U1h UEFI
OS: Mountain Lion, EasyBeast, SMBios: iMac12,2
Baseline GB 32-bit: 10500

Step 1: Increase Multiplier to 38, Increase Turbo Multipliers to 42,42,41,41, Increase turbo voltage to 120.
GB After:No change
HWMonitor: 16x1000mHz idle, 34x1000mHz load

Step 2: Increase vCORE to 1.30v
GB After:No change
HWMonitor: 16x1000mHz idle, 34x1000mHz load

Step 3: Install MacMan's SSDT for i5/i7 Overclock from MultiBeast. Repair, reboot
GB After:No change
HWMonitor: 16x1000mHz idle, 34x1000mHz load

Step 4: Modify Chameleon boot.plist to GenerateCStates=Yes and GeneratePStates=Yes, Repair, Reboot
GB After:No change
HWMonitor: 16x1000mHz idle, 34x1000mHz load

Step 5: Remove NullCPUPowerManagement kext, Repair, Reboot
GB After:5400!!!
HWMonitor: 16x1000mHz idle, 16x1000mHz load

Step 6: Undo step 3, idiot. (using kextbeast)
GB After:10500
HWMonitor: 16x1000mHz idle, 34x1000mHz load

Step 7: Disable EIST in BIOS, disable C3/C6 in BIOS
GB After:13000
HWMonitor: 16x1000mHz idle, 41x1000mHz load

Success!!!!! Only issue I can see is that I toggle only between 16x/41x, which I don't mind. Temperatures stay under 70°C while seven instances of running in Terminal and the CPU at 750% load for one hour. Calling it a win. I may try to up the turbo multipliers (one increment at a time) to see if I can go a little further. Now if only I could figure out why my write speeds on my OCZ Vertex3 SSD are peaking at 150MB/s.....

I also have that same CPU/MB/RAM combo (except 8 GB of RAM). All I did was increase the turbo multipliers to 42 (all 4). I bumped the RAM up to 1600, turned on xtreme RAM profile 1, and left the vcore at auto. The bios is showing a 1.335 vcore. Other than that, everything else is at the optimized defaults (except for the initial tweaks I made straight out of the gate before installing OSX). My core temps haven't been above like 43ºC. I haven't done any stress testing, but I haven't had any issues. My rig is mainly for running logic pro 9 and the experience is perfect (except for the usual logic bugs that I've always experienced on every fu*%ing mac I've ever owned..).

BTW, my geekbench 32 bit score is consistently around 13860.

The reason I stopped at 42 on the turbo multipliers is because anything above caused me to KP at boot up.. Don't know what that's about, but I'm perfectly happy with the 4.2 turbo boost.

So basically, if you do the OC work <i>before</i> you install OSX, OSX recognizes it. If you do it AFTER, you need to do what I did?

I did the OC after OSX install - only after a week of getting everything stable.

asmonica said:

I did the OC after OSX install - only after a week of getting everything stable.

Click to expand...

Lion or ml?

snow leopard