You probably don’t need to touch voltage or timings for 32GB.

No, not if you buy a matched kit and enable XMP (or DOCP / EXPO on AMD).

Modern motherboards handle basic RAM training automatically. If you drop in a new 2x16GB kit from the same package, the board reads the XMP profile and sets the voltage and timings for you. You just hit that one setting in BIOS and you’re done.

The situation where you do need manual adjustment is mixing sticks — say, keeping your old 8GB sticks and adding new ones. That’s a gamble. The board might guess wrong or fall back to slow safe defaults. Same if you try to push beyond the rated speed of the CPU’s memory controller. But for a clean 32GB upgrade with a matched kit? Zero fiddling.

If you’re worried, just confirm your motherboard supports the speed you bought. Then enable XMP and move on.