It exists on i7 Haswell as well, both my old 5820K and 5930K dropped 1 turbo bin when AVX was in use. It also needed a lot of voltage when overclocked to maintain it. With no microcode Haswell EP should only drop 1 or 2 bins.There is an interesting question: is there any way to disable AVX frequency drop on Haswell-EPs? (These are our E5 v3s). Must be, because desktop Haswell-E (Core i7) does not have this "feature".
My E5-2686 v3 dropping more - from 2.9 GHz frequency can go as low as 2,6 GHz. (29x - 26x), mostly stays on 27x.It exists on i7 Haswell as well, both my old 5820K and 5930K dropped 1 turbo bin when AVX was in use. It also needed a lot of voltage when overclocked to maintain it. With no microcode Haswell EP should only drop 1 or 2 bins.
I testet AVX with my setup now (2x E5 2620 v3), there are no clock drops, all cores stay at x32 multiplier. I have mcode version 39.Different ones. From Corona to Y-Cruncher (last one have binaries with AVX/AVX2 support and without it, so it's easy - HWiNFO on second monitor, benchmark on main).
I also switch 27 to 39 to get rid of LFM bug (no difference in performance anyway), but your processors totally different from mine - yours are using LCC (low core count) crystal (2686 made of HCC, high core count crystal, of course) and have few cores, so they can safely maintain frequency even on AVX2 load. But 2686 have 18 cores and TDP only 120W.I testet AVX with my setup now (2x E5 2620 v3), there are no clock drops, all cores stay at x32 multiplier. I have mcode version 39.
Do you simply deleted VMWare uCode driver? I'll check that.
Has anyone tried this cpu with Gigabyte x99 gaming g1 wifi motherboard ? I want to use it with microcode on this board. I would appreciate if someone could help me about it.Hey,
I have a Z10PE-D8 WS and 2x 2683v3's. Can anything go really wrong with this mod? Does this work with Ubuntu too? Does anyone have a stable setup like mine with the unlock?
The thing is, unless you use one of the EFI drivers that have microcode built in (V3x2_cp27.efi, V3x2_cp39.efi, V3x2_cup27.efi or V3x2_cup39.efi), or load microcode via VMWare driver, you end up with no microcode loaded (given you flashed modified BIOS, of course).Sciff, so you are saying no microcode in the bios, but as far as the vmware driver goes: 0x27 microcode for best performance or the 0x39 driver for better stability?
Or did you find a way to eliminate the microcode completely?
I don't exactly understand what you mean. My 2696 V3 R2 does work at x12 or 1200 MHz when idle, because I haven't turned off EIST (Enhanced Intel Speedstep Technology) in BIOS.Also are there options to change turbo MSR's on the fly in windows 10 or is there a workable "idle" setting possible from the bios when there is no CPU load?
I think I read about someone who was able to use idle state for no load?
10-15 mins, if you use balanced power plan - it can drop to x12 (if you select minimal CPU state at 99 % it will stay at x20 without any load and up to 2,9 for all cores or 3.5 for few cores under load). Однако, здравствуйтеAlex S, how soon after system startup have you made this observation? For example, I also notice this for about first two minutes after startup. Then, the core multipliers drop to x12 and unless I run something at least lightly demanding, it stays that way. Кстати, привет Таллину от Дублина
Is this motherboard any good to unlocked Xeons? Seems pretty nice - 160W supported, etc. And anyway, can anyone recommend good dual mobo, but not asus Z10-PE16 WS, these are damn expensive.Has anyone tried Dual/Quad CPU Supermicro boards and posted the results? I have Supermicro X10DAi and would like to try out this mod.
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