**[OFFICIAL]** Asrock Z77 OC Formula Overclocking / troubleshooting/ Discussion

[AMD LOving man]

After the update to 1.6 my OC is gone . The board is failing to boot in anything else than default, stopping at code 15. Before I stabilized my Sandy 4.7@1.39 but now I can not move beyond the turbo multiplier 32 (I have an early ES sample) I tried to change the multiplier from Windows, but it seems it is not working, only the voltage settings seems to work. From the book code 15 means early NB initialization. I tried "cure" the problem with more voltage (VTT, VCH, etc to 1.3) but it doesn't seem to help. The memory is on default.
From quick search the code 15 is supposed to be related to cold boot problem? So any suggestions or I just fried my CPU?
Is it safe to downgrade the UEFFI to previous version where it was working?

EDIT:
I am back to version 1.42L and crunching at 4.7@1.39. The newest UEFI obviously didn't work for me, but I am not as extreme as you guys to need it at first place

[nickshih]

After the update to 1.6 my OC is gone . The board is failing to boot in anything else than default, stopping at code 15. Before I stabilized my Sandy 4.7@1.39 but now I can not move beyond the turbo multiplier 32 (I have an early ES sample) I tried to change the multiplier from Windows, but it seems it is not working, only the voltage settings seems to work. From the book code 15 means early NB initialization. I tried "cure" the problem with more voltage (VTT, VCH, etc to 1.3) but it doesn't seem to help. The memory is on default.
From quick search the code 15 is supposed to be related to cold boot problem? So any suggestions or I just fried my CPU?
Is it safe to downgrade the UEFFI to previous version where it was working?

EDIT:
I am back to version 1.42L and crunching at 4.7@1.39. The newest UEFI obviously didn't work for me, but I am not as extreme as you guys to need it at first place

it looks like u are failed on bios updating to 1.6

U can try to update again by the bios jumper close by the bios rom .

Follow the instruction on the screen step by step

[AMD LOving man]

it looks like u are failed on bios updating to 1.6

U can try to update again by the bios jumper close by the bios rom .

Follow the instruction on the screen step by step

Thanks for the help and the advice. Appears the problem was not with the 1.6 UEFI, but it is totally my fault. I got the same problem with 1.42L, but I managed to isolate it. Appears my CPU is not tolerating high VTT, PCH and PCH DMI voltages. If I push them around 1.3V I get the booting problems. I was trying to raise them to stabilize the CPU 4.7@1.395 but appears the CPU simply needed more voltage for this frequency. It can not go lower than 4.7@1.41 for Prime95 stability.
But lesson learned, now its time to fry the GPU