[Various] Overclocker discovers Xeon E5 V3 Errata, Engineers exploit to unlock Turbo

[Warboy]

Any chance of getting this on a EVGA X99 Classified?

[StyM]

this works on X99 and C612 chipset...

[StyM]

Hi, are you currently following this guide? https://www.supermicro.com/support/f....cfm?faq=21555
I am using the config stated above.
However, somebody said while using microcode exploit, following the guide above gives you a more stable system.
Can you use the 27 one and follow the guide to give it a try?

used this bios settings along with 39.dat so far no reboot...

[Warboy]

Now my question is, if it unlocks turbo, could it be used to modify turbo? Like using a ES chip at QS Turbo levels? (Since ES chips are typically lower top turbo multipliers)

[StyM]

doesn't work on all ES chips...

[Ace123]

I think the v3_2 has way more ES support or so I hear

[Warboy]

I think the v3_2 has way more ES support or so I hear

I thought v3_2 was for dual socket mobos?

[Ace123]

It just finds ANY available cpus and unlocks them. Works for single and dual and quad if you have 4000 v3 series.

[Andi64]

I have to give v3_2 a try, then.

I have a Xeon ES v3, 12C/24T 75W. It was dirt cheap, and it works perfectly fine for my Virtual Machines. But I'd love to unlock turbo on all cores because it's a 0 stepping (most ES are Stepping 1, QS and Retail Stepping 2). It has 1.4Ghz base 2.0Ghz turbo. But it's kinda strange... Max Turbo on an unmodified BIOS reports 25X, but It never gets to 25 multiplier, and the moment I set something manually (like 25X on n cores) on the BIOS, Turbo craps out and stops working altogether.

Having 20x multiplier on all cores would be great, and unlocking that 25x multiplier would be awesome! Problem is, v3_1 and v3 does not work.

Also, I run ESXi, not windows. I'm not sure if I can load a microcode on UEFI and avoid ESXi from updating it, like Windows does.

[lescav69]

Yeah if you happen to score yourself a e5 2696 v3 18 core for say 750 bucks on ebay *hint hint* you can achieve 3.2-3.6ghz on 18 cores.... just sayin

Hello!
Could a Xeon E5 2696v4 achieve all 22 cores at 3.6GHz? I have never tried to modify a bios, moreover I don't know what do I need to do it...
are v4 blocked?
will appreciate any guidance

[StyM]

this only works on v3