More Voltage Required for Same OC on Rampage IV Formula after BIOS Update?

[LordTercept]

I just flashed my BIOS from 1305 to 1404 and ran into a couple of issues. It deleted my OC profiles, so I had to redo my overclocks, which was fine as I had screenshots I saved. The problem was using the exact same settings the board wouldn't even boot.

So I re-flashed the same BIOS again and just started the OC from scratch. Now I'm finding to get my 3820 to 4.75GHz I'm needing a lot more voltage. Before I was using 1.4v and it was stable in OCCT, now I'm needing to push to 1.45v to get any stability going on.

Did other people experience this same issue when upgrading to the new BIOS?

Anyways, any help that could be offered as to why this might be happening would be appreciated. Perhaps there are some additional UEFI settings I can adjust to help reduce the amount of VCore I'm using. Or maybe I should just go back to the older revision of the BIOS.

[HiVizMan]

May I suggest that (if you have not done so already) you revert back to the BIOS that you were happy with.

[LordTercept]

I'm going to try that right now, and i will post my findings.

[LordTercept]

Ok so I flashed back to 1305, but still same voltage issues. I've heard of these processors having a "breaking in" period where they require a little more voltage to achieve same clocks after a few months. Could this be the case? It's possible my OC became unstable without me realizing and the only reason I found out was because my settings got wiped when I did the update.

[HiVizMan]

Certainly possible, but of course I can not say for definite.

Oh and thank you for posting back your findings.

Now that you are going to be redoing the entire overclock, I wonder if you have thought about going the offset route. That way you have the vCore lower than you currently do, and it only increases when the CPU is working and therefore needs the additional voltage?

[LordTercept]

No I haven't considered it, I'm actually not familiar with what I would need to do to configure the OC this way. Is there a guide I could follow?

[HiVizMan]

Indeed there is written by the rather knowledgeable chap Raja.

http://rog.asus.com/forum/showthread.php?2162-Overclocking-Using-Offset-Mode-for-CPU-Core-Voltage&co...

It was written with a Maximus board in front of him, however it is completely transferable to the Rampage series.

[LordTercept]

Thanks for the reply with the guide. It looks like you need to make sure you're using speed step to take advantage of this? Is this the case. When I have all my cores locked in at 38 multiplier, it doesn't appear to be dynamically adjusting voltage.

[HiVizMan]

You are indeed correct, I am an advocate of running speedstep for in my view there are few compelling reasons not to. But each one must make their own call of course. At least after reading that guide you do have another arrow in your quiver and more choice (information) can not be a bad thing. 🙂