***Official***Z68X/P67A-UD7 Club/Discussion/Info**

[jbkappirossi]

I think your failure to boot is something to do with PLL overvoltage.
I've never seen issues like that if PLL is disabled.
If you're bored, try a test.

Try 100x45, 1.3v. PLL disabled.
See if you can boot and change various settings like bclk 99.8 to 100.3, and a few random settings in the bios, like vcore 1.3-1.32, HT on/off, etc.

Works fine, right?

I even saw a failure to boot when I was at 100x40 and all I did was change PLL to enabled. (kept saying OC failure and powering off after POST). Took like three three tries for it to stick...

its just random, sometimes it boots without any trouble @ 4914 1.35 prime stable.
But sometimes i get a bootfailure ''due to overclocking'' and than the debug post is showing 4E and than it won't even boot at 4600 1.35 as before 4914mhz.

i have set my PLL at 1.8 manualy, so i dout it wil be that, just can't beleave it. Its like an old diesel some times it starts right up and a copple of times it just hangs on 4E error/bug, i also first thougt my cpu was already degrading, but its just and bug that occurs mostly when overclock fails.

edit: sometimes i can trigger it manualy.
- first boot into windows with a most high stable overclock
- than push the resset button wile in windows.
- as soon as you wil reboot again (and my gues is true) you won't be albe to boot at the same maximum stable frequentie as before.

@ andressergio

don't know i'm running through SVID (auto) the same settings i posted a page back of my 24/7 OC.