The NB voltages on Z790 Aorus Elite AX are referred to as 12V and 24V.
The NB voltages on Z790 Aorus Elite AX are referred to as 12V and 24V.
The BIOS lists various voltages such as CPU voltage, NB voltage, and NB voltage. These values help you adjust your RAM settings accurately. For conservative tuning, consider starting with lower voltages and gradually increasing if needed. This approach ensures clarity before the BIOS auto-sets them.
I believe you're talking about PCH voltages, though I've spent a lot of time tuning RAM on LGA 1700. Those voltages aren't really useful for memory overclocking. They might help in some cases, but I don't think they're worth adjusting unless necessary. The important ones are VDDQ TX (sometimes called CPU VDDQ), VDD2, System Agent (possibly SA or VCCSA voltage), and then a bit of the PLL voltages.