I'm working on as tight timmings as I can at 2400 cl10, 2400 cl9 with 4 sticks will ask for hardcore volts (or high binup chips ).
Atm I'm doing 2400 10-11-12-20, funny thing 10-11-11 will cause errors. Then I'll go for 2600 cl11 but idk if I'll be able to do it without too much volts.