Maximus XI Formula XMP/Manual Dram problem

[Pesari]

Maximus XI Formula
I9-9900K (Stock speed)
RTX 2080 TI FTW 3 (Stock speed)
2x8gb HyperX Predator 4000MHz DDR4
Custom loop

Hi, i cant get my memory run at 4000mhz. Im using A2-B2 ram slots. I tried to switch slots and switch ram oposite slot. I tried with 1x8gb A2 with both sticks and still no luck.

Tried xmp 1 and 2. Tried to add dram voltage, vccio voltage and sa voltage but nothing. Tried up to 1.5v dram and 1.35v to vccio and sa.

Best these stick goes is 3466MHz and anything over that it revert back to bios.

Any help or suggestion?

[x-rated]

which kit exatly are you trying?
HX440C19PB3/8
HX440C19PB3AK2/16
HX440C19PB3K2/16

[Silent_Scone]

Try enabling Maximus Tweak Mode 2. Two DIMM kits are often more difficult to dial in at those speed than four due to the T-Topology layout. As above let us know which kit you are using.

[pkincy]

And don't forget about the often forgotten psu. I was chasing a bios problem, chased that down to I thought a dram problem and currently it is appearing to be a tired psu. Good luck.