Guys I want to put this out as a PSA -
After building mine last night, on all defaults my 9950x3d paired with an Asrock X870e nova was running the CPU at 1.36-1.4v at IDLE....
I tried updating to the latest BIOS, CMOS reset, loading defaults again and all the same behaviour.. also, all chipset drivers are installed and 0 difference (windows 11 pro if that makes any difference).
So for now as a temporary measure I've reduced the max allowed cpu vcore down to 1.0v with only 4.5ghz on both ccd's... No idea what the max voltage it will pull when under load should be stock, so not going to run it at the full frequencies until I know more but it went from idling at 50c~ to now just above ambient at idle and 50c in games.
Have contacted Asrock asking for urgent support, but please guys check yours, as if it was 1.4v idle I don't want to know what it could've tried to do when fully loaded in games/rendering etc.
I'm not super familiar with AMD as my last PC had a 4th gen i7... so don't know the intricacies so please correct me if I'm totally wrong but that just can't be right.. 1.4v from my experience is huge and wouldn't even expect to see that when overclocking (which I have no intention of doing on this pc..).
If anyone has other suggestions I'm all ears