ASUS Z77 Sabertooth Overclocking Problem

Hi Everybody,

Right, I have a weird problem when overclocking with my Z77 Sabertooth.
I have 2 chips, a 3570k and a 3770k. I had the 3570k to start off, then I started doing some video stuff so I upgraded to the 3770k for the Hyperthreading.

Anyway, the problem I have is that when OC'ing either chip, if I take the vcore voltage above 1.3v I get BSOD almost instantly on both chips.
For instance, the 3570k @4.6Ghz is completely 100% stable at 1.298v but if I increase the voltage even at the same clock speed to 1.310v I get BSOD! The same thing with the 3770k, completely stable at 1.300v but if I increase it to 1.310v...... BSOD! I've tried changing the clocks when I go over 1.3v, I've tried stock clock @ 1.31v = BSOD, 4.0Ghz @ 1.31v BSOD, 4.1, 4.2, 4.3..... all the way to 4.9Ghz, but still BSOD at any clock if I go over 1.3v! :fou:

All temps are well within safe zone, neither chip goes above 65c @ 1.3v. I have tried updating BIOS and going back to older versions as well.

So can anyone tell me if there is some sort of protection on this MoBo that stops you from going above 1.3v???
Is there something else other than the vcore I should adjust when going higher???
Maybe something else, could it be the RAM causing problems???
Or what about Windows, could W7 be causing it, should I try a full format and reinstall of the OS???

I'm totally lost, really need some expert advice here please.

Thanks everybody, really appreciate it.
Regards
13 answers Last reply
More about asus z77 sabertooth overclocking problem
  1. try clearing CMOS in between chip changes, sometimes defaulting the BIOS back to original settings doesn't do it.
    make sure you have a good clear even maybe removing battery if needed.

    then go back and re-configure your overclock.
  2. Clear CMOS is a good idea
  3. JackNaylorPE said:


    Thanks for your reply. But I have that OCN thread before and followed the steps but still nothing. Anything over 1.3v = BSOD regardless of what clock it's set to.
    Can you think of anything else it could be???

    Anonymous said:
    try clearing CMOS in between chip changes, sometimes defaulting the BIOS back to original settings doesn't do it.
    make sure you have a good clear even maybe removing battery if needed.

    then go back and re-configure your overclock.


    Thanks for your reply. I have indeed done this before, I even flashed the BIOS between swapping the chips, but it's still the same :-\
    Can you think of any other possibilities???
  4. next step would be another motherboard to test them on (processors).
    it's the only common denominator.
  5. I don't know if this is a derpy question, but would a corrupt driver or bit of software cause something like this??? I only ask because I was stress testing it earlier @1.308 but it BSOD after 3 hours, but the BS code was 0xd1 which I read was a software or driver issue??
  6. grab a spare HDD and do a test install of the OS unless you want to reformat your primary without testing.
  7. [Update]

    After a CMOS Clear and a full format and fresh install of W7 the problem still persists! Anything above 1.3v results in BSOD (0x124).

    I've been doing some reading and I've seen a few threads with similar issues where the advice was to increase the Northbridge voltage. Could this help, and if so what is the NB voltage called on ASUS Z77 MoBo's???
  8. not enough vcore , set LLC at high
  9. henydiah said:
    not enough vcore , set LLC at high


    No I have tried LLC at Auto, Reg, High, VHigh, Extreme...... Both chips OC to their own clocks and are stable, but if I put the vcore at 1.3v or above I get BSOD at ANY clock. For instance: The 3570k is 100% stable at 4.7Ghz @ 1.288v but if I increase the vcore to 1.3v at 4.7 it crashes instantly, even if I put the clock at 4.8 or 4.6 or any clock!
    It's like there is a setting that won't allow me to put more than 1.3v through any chip.
  10. overvolt get bsod and drop vcore stable ... that's very strange .. uhhhmm .. hardware issue investigation the mobo
  11. henydiah said:
    overvolt get bsod and drop vcore stable ... that's very strange .. uhhhmm .. hardware issue investigation the mobo


    Yeah I have a bad feeling it's something to do with the MoBo. Unfortunately I recently emigrated abroad so I don't know anyone here that might let me use their rig to test :-\

    Thanks for your help though, appreciate it.
  12. Phase Control - Optimized
    LLC - Medium or High
    Disable Spectrum(s), VRM and Spread

    then try it again.
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