it's a 1.0.9 bios issue , i had the same report on hw monitor * ram temp spike at 255° and 3.285v*, soon as i upgraded to the last bios , reverted down to 1.7.x.x.c and everything went normal again . 7800x3d on a msi b650 tomahawk and corsair vengance 6000 cl30 just for reference
it's a 1.0.9 bios issue , i had the same report on hw monitor * ram temp spike at 255° and 3.285v*, soon as i upgraded to the last bios , reverted down to 1.7.x.x.c and everything went normal again . 7800x3d on a msi b650 tomahawk and corsair vengance 6000 cl30 just for reference