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Best Way to OC i7 860?

post #1 of 17
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I've read a lot of guides and have become familiar with overclocking but I'm not sure what the best way to do an OC is. I know theres two ways, bttw and grandpa style so which one would be the best? also I've seen a lot of OC guides that put the BLCK to 200 and the multi to x20 for 4GHz, but I also know that you want a higher base clock and a lower multi so it still ok to have that high of a multiplier and a lower BLCK?

and I'm still kind of confused, are the only settings I need to touch the multi, BLCK, and CPU voltage or is there more to it than that confused.gif
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post #2 of 17
there is A LOT more to overclocking than just the multipliers, BLCK and CPU voltage. there is about 10 voltages you need to use and a lot more setting that need to be tweaked but thats only really done for the higher overclocks.

for starting off you only need the BLCK, CPU Vcore and CPU VTT, that should get you to or close to 4ghz. what you need to do is leave your multiplier alone, you want the highest multiplier possible to overclocking, that take stress off your board, the idea of lowering your multiplier and getting the highest BLCK is not for overclocking but to find out how far your board can go. honestly i think this step is pointless.

so start off with increasing you BLCK by 10 and each time boot into windows and run Intel Burn Test along with some program that shows the cpu temps. if you can pass intel burn test then increase the BLCK by 10 again and continue this. when you cant pass Intel Burn Test you need to increase CPU Vcore until you can pass it. then increase the BLCK more. you basically continue this until you reach the overclock you want, voltages get too high (dont go over 1.375v for starting off) or your temps get over 74*C on any of the cpu cores.
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post #3 of 17
Read this guide, it is on the P7P55D board, it has the same BIOS as your mobo and mine. smile.gif

Set your multiplier as high as you can as higher BLCK frequency requires more voltage.
Edited by OrangeBunnies - 11/1/11 at 2:29pm
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post #4 of 17
I did my 860 at 3.6 ghz 1.25v I mainly play bf3 which isn't cpu intensive and wanted a small oc but without increasing voltage or temps too much smile.gif
post #5 of 17
Quote:
Originally Posted by Kal777;15534309 
there is A LOT more to overclocking than just the multipliers, BLCK and CPU voltage. there is about 10 voltages you need to use and a lot more setting that need to be tweaked but thats only really done for the higher overclocks.

for starting off you only need the BLCK, CPU Vcore and CPU VTT, that should get you to or close to 4ghz. what you need to do is leave your multiplier alone, you want the highest multiplier possible to overclocking, that take stress off your board, the idea of lowering your multiplier and getting the highest BLCK is not for overclocking but to find out how far your board can go. honestly i think this step is pointless.

so start off with increasing you BLCK by 10 and each time boot into windows and run Intel Burn Test along with some program that shows the cpu temps. if you can pass intel burn test then increase the BLCK by 10 again and continue this. when you cant pass Intel Burn Test you need to increase CPU Vcore until you can pass it. then increase the BLCK more. you basically continue this until you reach the overclock you want, voltages get too high (dont go over 1.375v for starting off) or your temps get over 74*C on any of the cpu cores.


thanks for sharing I didn't know the blck required more vcore I had my multiplier at 20 and now it's at 21 and lowered v core and temps are even lower thx
post #6 of 17
Here are my BIOS settings if you're interested:


attachment.php?attachmentid=236985&stc=1&d=1320187613

attachment.php?attachmentid=236986&stc=1&d=1320187613

attachment.php?attachmentid=236984&stc=1&d=1320187613
Edited by OrangeBunnies - 11/1/11 at 4:16pm
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post #7 of 17
enable turbo boost to get 24x multi , adjust your bclk from there .

im running my i7 870 at 24x175 @ 1.36v = 4.2Ghz

if your going for 4Ghz you dont need to touch anything besides your vcore leave eveything else on auto . I only have to up the QPI/VTT , CPU PLL and VRAM voltage when im going for high overclocks like 4.4Ghz +

also if your playing BF3 , turn hyperthreading off .. runs much smoother .
    
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post #8 of 17
I get 22x with turbo and your suppose to turn it off when ocing I thought?
post #9 of 17
Quote:
Originally Posted by IIMaxII;15535291 
I get 22x with turbo and your suppose to turn it off when ocing I thought?

Turbo is more difficult to reach stability, if you're new to overclocking I would turn it off along with all the power saving options and use fixed Vcore. Find what Vcore is stable for your desired overclock, once you find your stable Vcore enable the power saving options if you want.
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post #10 of 17
Thanks... I did 3.6 at 1.2v stable smile.gif
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