Being a new owner of the X570 I Aorus Pro Wifi, I was curious why the BIOS voltage for DRAM of 1.35V would result in 1.4V at the DIMM… A clue came when someone mentioned on their X570 Gigabyte board that the voltage increases further under load.
This means the stock LLC setting is set beyond extreme, so instead of drooping the voltage, it increases the voltage with load.
I then tried to look for the VRM setting for DRAM/DDR LLC…
(via Anandtech. Notice the 1.38V DRAM voltage, my BCLK is 100.4Mhz)
Not present at all… When the voltage is being boosted under load, the first thing you need to do is change the LLC setting. Gigabyte in their wisdom have removed this option from the BIOS, meaning sticks could be getting as much as 0.05V extra voltage, increasing heat.
@wendell, you mind bringing this up with your Gigabyte contacts? A lackluster CPU/VRM settings page (No ability to change PWM switching frequency at all. Phase control only modifies if phases are all on or selectively off.) is passable, but not being able to change memory voltage LLC when it’s broken by aggressive LLC settings on a BIOS release (emphasizing that you don’t have the ability to modify DRAM LLC at all) is pretty bad… For more voltage sensitive sticks, it could mean the difference between life and death.
Can you also verify with DMM readings what it actually should be?
FWIW: I’m on the latest F31h X570 I BIOS. My X299 Aorus Gaming 7 Pro doesn’t have this issue at all.
Edit: If your XMP voltage is supposed to be 1.35v, you actually need to set 1.32v on the X570 I Aorus Pro WiFi to not overvoltage and dump heat. If you’re uncomfortable with the high BCLK, the equivalent to 1.36v is 1.33v.