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Overclocking i52500K on ASUS P8P67 PRO

post #1 of 19
Thread Starter 
I've had my current setup for a little while now and felt no real need to OC it, plays all the games I want just fine and renders/encodes video just fine too. Just lately I've gotten a little curious as I know the CPU and board a good combination for overclocking.

I haven't overclocked since I had an E6300 and then a Q6600, so it's a been a good while! I wouldn't know where to begin now, there looks as if there's a lot more options, and all the voltages and multipliers have changed I think.

I'm aware my board has an 'Auto OC' feature which doesn't gets pretty good press from what I've read. Is it something worth trying? I'm not after anything crazy, I'd be happy with 4Ghz, maybe a little more.
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post #2 of 19
This would be a good starting place
http://www.overclock.net/t/908782/sandy-bridge-overclocking-guide-ocn-members-only
& this

http://hardforum.com/showthread.php?t=1578110

thumb.gif
post #3 of 19
hello,

I have the standard board of the model you have. The auto feature tends to jack up volts a little. However they do seem to be stable I don't notice any throttling and I think a lot of the hoopla is the fact a lot don't view it as true overclocking biggrin.gif

Your board prob has the extreme autoclock feature too? Mine only has the "fast" mode. When I used that, I noticed about a 20 % gain...which did put me in the 4.1 or so....I think the fast mode just stables the volts...where as extreme looks at the cpu temp....

I use the bace oc unstable overclocks as sort of a reference to about what volts it should run...but Im sure you know about bumping a little at a time if you've overclocked before, gets much better results, running your own test , etc...

http://www.overclock.net/t/525748/4ghz-overclock-club


The only gripe I have is if you use this feature (in my case), it takes that info and uses it as the OS default in your suite II , since it considers it the most stable OC.

While its never going to be the best way to OC your cpu (like going into your bios, and doing it a little at a time), I don't think it will hurt it either.
post #4 of 19
At 4 GHz you could get away with auto OC but it is going to provide more voltage than required for that clock speed. You could go to the Sandy Bridge club page and try other people's combination that run the speed you want and then just trial and error with lowering or upping the vcore until you are happy and stable. I would recommend using Prime 95 in a blend test using like 60-80% of your RAM for stability testing. That should give you a good idea whether you're stable or not, there is really not much to do with overclocking other than messing with the vcore for such a mild overclock.

I recommend just trial and error with upping your vcore like 2 increments at a time until you are able to get into windows, but you should be able to do 4 GHz with pretty low voltage, I don't know offhand what the stock voltage is my chip has been running at 5GHz for 18 months since I got it.

The guide that Huzzug posted is a very good place to start off though, if you just watch what other people have done and toy around with your setup for a while you should be pretty comfortable in no time.
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post #5 of 19
I would like to suggest you to not use the AI Suite to do any OC'ing. The board lets the volts loose and your proc would be supplied with too much voltage which it does not require. Use the guides and OC through the bios itself. I used the AI Suite only for setting my FAN profile, but after a bios update, even that function was broken and i uninstalled the entire software.
post #6 of 19
Quote:
Originally Posted by huzzug View Post

I would like to suggest you to not use the AI Suite to do any OC'ing. The board lets the volts loose and your proc would be supplied with too much voltage which it does not require. Use the guides and OC through the bios itself. I used the AI Suite only for setting my FAN profile, but after a bios update, even that function was broken and i uninstalled the entire software.

I tend to disagree in my case....When I look at stable clocks and compare the numbers...they fall into the norm. You can always tweak your volts after its ran if your trying to save energy or run on the lowest volt setting. Even if fails with AIDA64, or something like that, the motherboard is going to do the same thing, revert back to the last functional boot settings. Try again......
post #7 of 19
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post #8 of 19
Quote:
Originally Posted by Whodat1972 View Post

I tend to disagree in my case....When I look at stable clocks and compare the numbers...they fall into the norm. You can always tweak your volts after its ran if your trying to save energy or run on the lowest volt setting. Even if fails with AIDA64, or something like that, the motherboard is going to do the same thing, revert back to the last functional boot settings. Try again......

i too thought that way...that was until i tried to OC my chip to 4600Mhz and the system would always freeze and had to do a hard boot. Then, i OC'ed it using the bios and was sucessful to boot at 4800 Mhz and was stable. As a simple test, you could try adjusting the multiplier to above 45 or to 45 and hit apply. You'd face the same thing if you were to do it through the OS rather than the bios.
post #9 of 19
Quote:
Originally Posted by huzzug View Post

i too thought that way...that was until i tried to OC my chip to 4600Mhz and the system would always freeze and had to do a hard boot. Then, i OC'ed it using the bios and was sucessful to boot at 4800 Mhz and was stable. As a simple test, you could try adjusting the multiplier to above 45 or to 45 and hit apply. You'd face the same thing if you were to do it through the OS rather than the bios.

I have Sir, and I did crash when I first started out because I would set my volts too low...it would also be instant if I didn't also set my volts, if I did it now...if I did it in bios , it would be the same way as well ( if I didn't set my volts). But the question he asked is would you run Suite II?...Me personally, I like the fact that I don't have to go into BIOS all the time..the fan control as you mentioned and profile settings. Sometimes I don't want to run so high if I'm just surfing the net...I like how its monitors and even has options I don't use , like adjusting the gpu.

It's really preference... when I ran Suite II's auto, I got 4120Mhz at 1.095 ...I really don't think that's high. Esp when I look at unstable overclocks (4.0GHz page), and that's what its kept as my OS default. Even if I try to notch it below them volts, I can't get it stable ( I really haven't tried underclocking the volts, too scary for me, lowest I went was 1.045 before I gave up ) now I know gpu's vary, esp different models. And I'm sure this isn't everyone's experience with Suite II....Add's a little more fun playing with OC'ing to me biggrin.gif

Maybe I'll regret it someday, but it's ok by me so far ~
post #10 of 19
Thread Starter 
Just had a quick dabble. The first picture is stock (but I'm assuming it had some sort of stock OC since the 2500K should be 3.3Ghz). The second picture is when I turned on 'OC Tuner' which apparently automatically overclocks the frequency and voltage of the CPU and DRAM for enhancing the system performance.





Took these screenshot whilst running Prime. What do you guys think?
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Corsair M4 128GB SSD + 1TB WD Windows 7 Pro 64bit 24" Acer & two 19" Samsungs Corsair 650TX 
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i5 2500K ASUS P8P67 Pro GTX 560Ti 2GB & 8800GTS G92 512MB for PhysX 16GB Kingston HyperX 
Hard DriveOSMonitorPower
Corsair M4 128GB SSD + 1TB WD Windows 7 Pro 64bit 24" Acer & two 19" Samsungs Corsair 650TX 
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CM HAF 922 
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