P67A UD4 B3 loses OC settings and freezes requiring CMOS reset

[leezaal]

Hi all,

As per the title my bios (does it on F2 F3 F3c F3d ) keeps losing settings and freezes up requiring CMOS reset if i try to OC to 4.5ghz which i should
be able to do no problems. can any one help me or any one having similar issues ?
Here are my specs
i5 2500k
P67A UD4 B3 (F3 bios)
noctua NH D14 max temps 51c and 100% load at 4.4ghz
8gb G skill ram 2 x 4gb sticks 1600mhz 9-9-9-24 1.5v
1x SSD drive
3 x normal hard drives
corsair 850w modular psu

[Dark Mantis]

Hi and welcome to the Gigabyte Forum.

The first thing I would suggest is to synchronise the two BIOSes so they both have the same version on  them. Decide on which one you are going to run and run the update then reboot and where you would normally press DEL to enter the BIOS, instead press Alt + F12, this will flash the Backup BIOS with the MAIN BIOS contents.   Do not worry when you see a recovery comment, that is normal and means it is flashing the backup BIOS

[leezaal]

thanks for the advice i am already running main and backup bios on version F3 i have managed to get into windows at 4.7ghz and it runs fine until i switch pc off.
when i turn it back on the bios keeps freezing !

[Dark Mantis]

You say it runs fine but what stressing programs are you running to prove that and for how long ?

[leezaal]

Had been pulling my hair out not able to get past 4.4ghz stable.
It would not even get past bios at 4.5ghz Am now running 4.8ghz at 1.43v idle 38c max 60c
Now i have only just set this up and quickly run cinebench 11.5 got a 7.51 score and i know i have not exactly tested for stability via prime95 intel burn test etc it might not even be stable but i had to post to say now i know its not a ram issue or bad board or chip

[Dark Mantis]

So basically we don't know if it is stable at all so far then.