Ram overclocking

[cjpcbuilder]

I have a core i7 12700k, Asus ROG Strix Z690-E motherboard, Corsair dominator platinum 32gb 5600mhz ddr5, evga rtx 3080ti, corsair rm1000x power supply, two 980 pro m.2 2tb, Corsair h150i Aio, 10 corsair fans and controllers. 

My question is specific to the ram overclocking; the default is 4000mhz, and the kit is supposed to run at 5600mhz. After updating to the current bios for the above mentioned motherboard, I enabled the XMP profile one for the 5600mhz. After restarting, the machine went through the debug process five times and then stated that it had “failed bios check” press f1 to continue, then it will finally go to login screen. Every time you restart it did the same thing, until I set the bios back to default, 4000mhz

So I researched a little bit The motherboard supports this ram, but the 12700k only supports 4800mhz ram, supposedly. After setting the manual overclock profile in the Asus bios to 4800mhz it did the same thing. Again I said it back to default, and it booted fine. I have the ram in slots 1 and 3. I think I need it in 2 and 4. Could that be the whole thing? What I missing something, settings, or is this still a prevalent issue as I have read before that still is being fixed by Asus? Can anyone help? 

[RONOTHAN##]

12 minutes ago, cjpcbuilder said:

I have the ram in slots 1 and 3. I think I need it in 2 and 4. Could that be the whole thing?

Yes. All DDR5 boards are daisy chain boards, and having the memory in the wrong slots on a daisy chain board sometimes won't even let the system boot, let alone run at half decent memory speeds like 5600MHz. 

[Luc.Nguyen90]

I am still figuring out what setting work best but best I'm getting to post is 5000MHz out of 5600MHz graded sticks.

 

To go higher than 1.435 voltages, it's under Ai Tweaker and the setting I changed was High DRAM voltage mode to enabled.  

I have a Asus Z690-P with 4 sticks (64Gb total) of Corsair CL36 5600MHz ram sticks running on a i9-12900K with a 1000w PSU

 

XMP profile 1

Dram frequency 5000MHz

DRAM VDD 1.45

DRAM VDDQ 1.45

Advanced Memory Voltages ->PMIC voltages: By Per PMIC

Everything else auto