ASRock Z370 Pro4 and T-Force VULCAN DDR4 memory issue

Mar 8, 2018
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I've already asked this question ASRock support team but also want to know the community opinion.
So I have TLRED432G3000HC16CDC01 kit which includes 2x16Gb sticks that according to manufacture are compatible with ASRock Z370 Pro4 (https://www.teamgroupinc.com/en/catalog/act.php?act=1&index_id=66) and can run at 3000MHz.
When I put both of these sticks they are detected at 2133MHz and work just fine. When I enable XMP Profile at any speed higher (2400/2666/3000) the system won't boot. If I take single module (16Gb) and put it slot A1 or A2 I can run it at 3000MHz no problem. If the same module is inserted in B1 or B2 slot the system won't boot at speed higher than 2133MHz(it boots and works fine at 2133MHz). Same goes to a second module: works fine at slots A1 or A2 if alone at any speed up to 3000Mhz and fails to boot at any speed higher than 2133 in slots B1 and B2.
Does anyone have any idea what is going on?
 
Solution
You dont go by the memory manufacturer support list you use the motherboards QVL.
Try adding a bit more voltage to the memory up it to 1.37 and manually set the timings and speed.