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RVE & 6950X Voltage weirdness help

mcgintydm1984
Level 7
Im Afraid I'm going to melt my band new 6950X and Don't know how to control the voltage....I just upgraded from a 5960X to a 6950X and my voltage control now showing gross inaccuracies.

Mobo: Rampage V Extreme u3.1 Bios 3301


Under Fully Manual Mode, With the 5960X - If I chose 1.365v - The Mobo Reports 1.375. Was high, but close. And Windows CPUZ Reported accurately.
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Under Fully Manual Mode, with the 6950X - If I chose 1.35v - The Mobo Reports 1.392v. Way too high. Then In Windows CPUZ Shows 1.30v
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Then - To Test, I tried to lower the voltage way way down (just to test) to 1.29v. The Mobo shows 1.344v! Why the big difference? CPUz Shows 1.42v Yikes!
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What and Why is happening? I don't want to blow up my CPU because I can't accurately tune the voltage... Is there some setting Im missing?
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8 REPLIES 8

meankeys
Level 13
Under the Digi+ settings what LLC are you using?

meankeys wrote:
Under the Digi+ settings what LLC are you using?


I have experimented with Auto, Level 1, Level 5 and Level 9 - all Same Result. Edit: Similar Results. Still all voltages report way to high or way to low. I really want to force just 1.35 and leave it about there. Idle and load.

Upon more testing, No matter what I manually set it to in the bios, it looks like the only voltages my CPU wants to do (at 4.3Ghz) is 1.312 v, which is too low, 1.344 which seems ok but i still would like to refine it, 1.375 or 1.392 which is too high. I don't seem to have granular control over the score and unsure why.

madmarc69
Level 7
Same problem here. Any solution?

same problem with my i7 6950 x rampage v extreme can not get voltages to stabilise on lastest bios 3501. have played around with LLC and no differance at all .

vmanuelgm
Level 11
LLC does not interfere with vcore in H-E and B-E because of internal voltage regulator, it only affects input voltage.

If you wanna low down that vcore voltage (6950x), u got to decrease the selected one to 1.30v more or less, so that the regulator has a lower point. But you will have to check if it is enough for the desired frequency.

The best program under OS to check the vcore voltage is Aida64, not CPU-Z which only shows VID selection.
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madmarc69
Level 7
@vmanuelgm: Thank you for the information. This works for me.

vmanuelgm
Level 11
Welcome!!!

😉
Asus x670e Hero, 7950x, TG 7000, Master 4090, 970 PRO, 860 EVO, Intel 750,
SN850, SN750, 840 Pro, 2xSkyhawk 4TB, Pioneer S12U
EVGA T2 1600, Silverstone TJ11, Custom LC, Acer Predator x35, Philips OLED