I5-2500k/ASUS P8Z68-V PRO/GEN3 is mine clock able?

[chefaisal]

Hi all,

I'm newbie to OverClocking world 😀, so I've been reading a few topic about it, the last thing I\ve read is about the useful tools that we should use before process anything these are the tools:
CoreTemp (64bit) v0.99.8
Prime95_(64bit)_v25.11
CPU-Z 1.59
xntimer (for timing)

these are my desktop specifications:
* Intel Core i5-2500K CPU @ 3.30GHz
* ASUS P8Z68-V PRO
* Corsair Vengeance Blu 8 GB (2X4 GB) PC3-12800 1600mHz DDR3 240-Pin SDRAM Dual Channel Memory Kit
* Corsair Enthusiast Series 750-Watt 80 Plus Bronze
* Cooler Master Hyper 212 Plus
* Case:
fractal design define r3 black pearl which it includes:
* Fan controller for 3 fans included
* 1 rear Fractal Design 120mm @ 1350rpm included
* 1 front Fractal Design 120mm @ 1350rpm included
and i could add (but i didn't yet):
* 1 front 120mm fan (optional)
* 1 bottom 120mm/140mm fan (optional)
* 1 side panel 120mm/140mm fan (optional)
* 2 top 120mm/140mm fan (optional)

this is my result test with Prime95 for 15 minutes and the heat goes up to 70C with Hyper 212 installed !

(Click in the picture for a better view)

if i could clock this computer, what is the best configuration i should use for the voltage and everything else?

thanks a lot

 

[ebalong]

Hi all,

I'm newbie to OverClocking world 😀, so I've been reading a few topic about it, the last thing I\ve read is about the useful tools that we should use before process anything these are the tools:
CoreTemp (64bit) v0.99.8
Prime95_(64bit)_v25.11
CPU-Z 1.59
xntimer (for timing)

these are my desktop specifications:
* Intel Core i5-2500K CPU @ 3.30GHz
* ASUS P8Z68-V PRO
* Corsair Vengeance Blu 8 GB (2X4 GB) PC3-12800 1600mHz DDR3 240-Pin SDRAM Dual Channel Memory Kit
* Corsair Enthusiast Series 750-Watt 80 Plus Bronze
* Cooler Master Hyper 212 Plus
* Case:
fractal design define r3 black pearl which it includes:
* Fan controller for 3 fans included
* 1 rear Fractal Design 120mm @ 1350rpm included
* 1 front Fractal Design 120mm @ 1350rpm included
and i could add (but i didn't yet):
* 1 front 120mm fan (optional)
* 1 bottom 120mm/140mm fan (optional)
* 1 side panel 120mm/140mm fan (optional)
* 2 top 120mm/140mm fan (optional)

this is my result test with Prime95 for 15 minutes and the heat goes up to 70C with Hyper 212 installed !

(Click in the picture for a better view)

http://easycaptures.com/fs/uploaded/660/6228076264.png

if i could clock this computer, what is the best configuration i should use for the voltage and everything else?

thanks a lot

Are you manually setting the voltage in your BIOS, or are you tuning it with "Offset" mode? 76C seems a little high for 1.28v and ~4.3GHz, but it should still be well within safety limits, and perhaps within the average variation for those numbers and that cooler. You could try lowering the voltage just a bit more - maybe to 1.27v or so, run Prime95 and see if that lowers the max temps below 70. If it doesn't crash on you after ~15mins and you are satisfied with the resulting temps, leave it running and see if it makes it over an hour or so, then see if it makes it for several hours, so on, and so on. Some individuals are only content if they can run Prime95 for over 24 hours straight without any hitches.

I have the same motherboard, processor and cooler as you, I am using the Fractal Arc Midi, so I one more case fan (stock) than you, I don't know if that makes a difference for max temps but here are some of my overclock experimentations:

- Left the voltage tuner on auto, pegged the CPU ratio @48 (I leave the baseclock alone at 100MHz). Result: 1.4-1.45v and temps of 78-81deg C, at 4.8GHz. These temps were too high for my comfort, so I didn't stick with this o.c., just wanted to see if my new processor could make it without too much trouble.

- Manually input voltage, set CPU ratio @45, and ran Prime95 - tweaking the voltage lower and lower. Result: I got down to running 4.5GHz with 1.265v, and ~58-60deg C max temps. I was quite pleased with this setup, only problem is- it was only stable for ~1 hour on Prime95; crashed after much more than 1 hour.

- Current setup: Applied a voltage offset of .050 (+) volts, and CPU ratio of 46. Result: 4.6GHz at 1.304-1.312v, and max temps of ~68deg C. This setup has been stable for several hours of running Prime95, and it does Intel Burn Test on the high setting, for 25 cycles. I am not sure if I am going to be extreme and see if stability holds up for 24hrs or 2 or 10 days or whatever; rarely will you have 100% load on all cores for an extended amount of time. The thing I like about using Offset mode, as opposed to Manual voltage, is that the vcore will drop down along with the lower clocks while idling. Manual mode does not allow this - if you set it at 1.32v in manual, this is what your processor will use whether it is running at 1.6GHz or 4.3GHz.

So, your temps may be treading on the slightly high side, but probably nothing dangerous. How did you apply your thermal compound? I just followed the method on Arctic Silver's website, and it has been working fine for me, not as stellar as some people have reported with a similar system, but good enough.

 

[chefaisal]

ebalong

thanks a lot man, well I've been trying to figure the best configuration (which it not yet the best, it does hang sometimes while prime95 is testing) , its almost similar to your current setup have a look, tell me what do you think about it?


View Screen Capture

 

[chefaisal]

Best answer selected by chefaisal.

 

[ebalong]

ebalong

thanks a lot man, well I've been trying to figure the best configuration (which it not yet the best, it does hang sometimes while prime95 is testing) , its almost similar to your current setup have a look, tell me what do you think about it?

[url]http://easycaptures.com/fs/uploaded/663/thumbs/2733333089_b.jpg[/url]
View Screen Capture

Looks stable (7 hours?), but the temps are too high. You should be able to hit 4.5GHz with high 60's - low 70's max temperatures at 100% load. Your CPU ratio at 45 is good; now you need to fine tune the core voltage input. What is "Tune-Up Utilities 2012"? Is that some kind of overclocking software? I just use the BIOS to o.c.

The next time you restart, enter the BIOS. The first screen you come to (if you haven't changed it) should be the "EZ Mode" screen. Click the "Exit" button in the upper right, and then select "Advanced". Now, you should be in a different screen that has multiple tabs across the top. Click on the tab that is labeled "AI Tweaker". Once inside that, scroll down to the section that is labeled "core voltage". There are two options for core voltage - "Manual", and "Offset". This is where it is slightly confusing - both of these options have an "auto" setting. If you selected "Manual", "auto" will appear as the default value (yeah, I know that it is kind of counter-intuitive). This is not bad, but letting the BIOS/mobo auto-regulate the voltage often leads to higher voltages (and heat) than may be necessary. If you click in that little box that says "auto", you can type in a voltage value. Doing it this way allows for lower voltages, but, the value will not change when your CPU is at idle.

Selecting the other mode, "Offset", also defaults to a value of "auto". When you select "Offset", you will notice that another box appears above the value box, with a plus sign (+), or a negative sign (-). I would set that box to "+", and then type in an offset value in the box that starts with "auto" as default. Start with an offset value of .050, then save changes and exit, your computer should start up in Windows. Open up all your monitoring utilities, and rev up Prime95. Compare peak voltages and temperatures with your last run. Run Prime 95 for about 15 minutes, and if you are happy with the temps, leave it running to test for long term stability. If you want the voltage and temps to be a little lower, restart and tweak the offset more - maybe set it at .045, or .040 and see what happens. Good luck.