System Specs:
- i9 10900K
- ASUS ROG Strix Z490-E
- G.SKILL F4-3200C14D-16GTZR
Issue:
Applying a Manual Voltage in the BIOS results in no-change reported in HWInfo/CPU-Z in Windows. For example:
I set a manual voltage of 1.35v in the BIOS, In HWInfo it reports the VCore at ~1.1v when idle and ~1.4v under load. This becomes increasingly worse as I push the Core Ratio higher, if I use a multiplier of 52x then I see around ~1.5v during load despite leaving the manual voltage at 1.35v in the BIOS.
I can cause a change to the voltage by applying a different SVID Behaviour profile however this doesn't provide nearly enough control to dial anything in. With SVID Support DISABLED, the system won't post past the ASUS Splashscreen (and during this time pressing any keys does nothing despite it saying "Press DELETE to enter UEFI Firmware"), the only way to fix it is to hard reset the system with the power button and boot back into the BIOS to re-enable SVID.
I have also tried using an Offset Voltage and see 0 change in the VCore, as well as tried disabling C-States, Turbo Mode, Speed Step & Speed Shift - all of which had no effect on the VCore.
An additional step I later tried was using Intel XTU to apply a manual voltage and while this did work I still see extreme deviation under load (setting 1.1v in XTU maintains this VCore for the most part however during load it spikes up to ~1.45v ish) - I assumed this was maybe LLC being way too aggressive, however no matter what setting I used (LLC 1 all the way through LLC 7), this changed absolutely nothing.
My issue is pretty much identical to the one in this long thread here on a Z390 board however at the end of the thread the conclusion is to update the BIOS to new version that was released and fixed the issue. However, on my board I've already tried using the latest BIOS and no dice.
This issue is driving me insane so any help would be appreciated in figuring out what the hell is overriding all changes to the voltage.
