ASRock Fatal1ty X99 Professional Gaming i7 and Xeon E5-2697 v3 All Core Turbo

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yellowjacketgt

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Apr 23, 2020
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Any tips for hitting the stated all core turbo on my motherboard? E5-2697 v3s have an all core turbo of 3.1 GHz, but I'm only hitting 2.9 GHz all core. Single core is hitting 3.6 GHz as it should and temps are kept under 50*C by a Noctua D15 with dual fans. I have all C states enabled in BIOS and C6 set as retention state. I was getting the same results with C6 set to non-retention. PSU is a 1200W Corsair Platinum with a single 1080Ti and 4x 16GB sticks of Samsung DDR4 ECC. Setup has been running at this performance level from the moment I assembled it about a year ago.
 
I would try flashing motherboard BIOS to latest revision (if you're already not on) and give CPU a slight offset undervolt.
 
This makes me want to find a board for one of those same Xeon CPU's that I have laying around.
 
Confirmed that the board is on the latest BIOS and tried voltage offsets of -0.02V and -0.04V with no change in behavior. What range of undervolt should I be looking at?
 
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