P8Z68V-PRO overclocking problem

I just bought a P8z68v-pro mobo, because I thought I had an user friendly overclocking with the tpu swith or the auto overclocking option on the bios ezmode or with the ai suite auto tuning feature, but none of this things work out for me!
If I turn of the TPU switch the computer doesn't turns on, if I use the oc option on the ez mode it crashes if I try the ai suite auto tuning it also crashes during the process, I'm using an i5-2500k

hope I can get it fixed because I live in Brazil and I bought it in the US so I can't just RMA it

Well it still works fine with the switches off right?
I wouldn't recommend auto-overclocking, it dosnt always work (as you know) and it often applies high voltages that aren't needed. If you are going to overclock, take time and make it a project. However, a 2500k is a very strong, fast cpu, and you probably wont see much difference overclocking it. Consider if its worth it. (I'm saying this because I killed my first 2500k via overclocking.)

But does it not work at all, or only with the switch on?

:-) Well I dont really know exactly. I:
1. Set target clock (4.5ghz) via all 4 core multiplier for turbo mode.
2. Enabled PLL overvolt, LLC really high, all that good stuff.
3. Set vCore high (not offset)
4. Worked my way down to 1.3 volts stable @4.5ghz. (stock voltage=1.2) @60 degrees max


Left it for a week, then decided my temps were a little too high, so I bumped it down to 1.29v hoping to see how far down I could go. (I had never gone lower than 1.3.)
But as I save changes and restart, the bios screen hangs, so I restart via button, then it Posts and says CPU temp error, I reach behind my comp and REALLY hot air is coming out the back, I pull the plug, pray from 10 minutes, and start up the computer, at which point the cpu was dead and I cursed the world.

:-) I still dont know what it was, Im at stock ghz now, I read somewhere that the mobo LLC could have compensated too much?

Overclock from the bios, 4.5ghz should be a vcore of about 1.35, give or take a bit, if you can do it with offset or constant voltage.
You can try it at that vcore and see if it's stable, then gradually lower it, until it isn't so you can find the right voltage for it.

I tried the auto overclock of the asus deluxe, and gave me voltages that where too high...
I have my i7 2600k oced to 4.7ghz at a vcore of 1.352 according to cpu z.
With auto oc, it was 4.6ghz at a vcore of 1.4...lol

Also: What error do you get when your computer crashes?

Not blue screen or error code?

That could be a voltage problem. What voltage are you using in manual?

Reset ur cmos and start over with manual oc

I set the turbo multiplier, so it clocked up under stress, and down under idle, but with a fixed voltage that was always the same.

Well sandy doesn't like base clock tweaks. Its 100 by default, and Toms has tested and written that as soon as they hit 105 everything went wack, SATA corruption, etc.
I changed the "Target Turbo Multiplier" or something like that. I didnt touch the base clock. At stock settings, the 2500k clocks up to 3700mhz under stress, as its default turbo multiplier is 37. All I did was change that to 45.

Around 1:50 you can pause and look. It says "turbo ratio - by all cores" and then "By all cores - 45" Then under stress (prime) you look under cpu-z and see that your clock rate has gone up. (To 3700mhz at stock settings, or 4500mhz for my OC)

Sorry, I know what I'm talking about. :-)

Lol, my bad. Forgot... :-)
"Around 1:50 (one minute and fifty seconds) you can pause and look."
http://www.youtube.com/watch?v=WMZoWOpry40