Αre you keeping the dram boot voltage same as the dram voltage every time?Although I can run nice and tight at 3733 CL14 IF @ 1866 I get quite nice results....
If I try to run 3800/1900 only way it boots so far is to let bios apply awful auto timings like 22 26 26 26.
Also, I can select DOCP 4266, which is meant to be 19 19 19 19, it boots, but with same awful timings, not the XMP timings. Currently trying to get it to boot with 20 20 20 20, but no luck yet. Trying various voltages and timings but just don't know what I'm doing yet.
Tried CL15, GearDown off, tried T2 as well, but not sure how T2 effects things like voltage on this chip.
Do others have the bios enter slower timings than XMP for them?
Think I can probably refine my 3733 with help from the last few pages.
Thanks for extra information @The Stilt - always helpful!