Question RAM/CPU Problem / Cant get into BIOS feel like I tried everything ASUS B760i Gaming Wifi

[kxrel]

Hey, yesterday I finally finished building my PC.

When I started it for the first time everything was working well and I left it on to download some games over night.
When I woke up I took it apart again just to clean up some cables etc. the only thing I disconnected was the Pcie Riser Cable.
After that the PC wouldnt display anything anymore and the QLEDs were flashing Red and Yellow. (DRAM and CPU)

For the past 8 hours ive been trying to get into the BIOS again but with no luck.
I tried;

Taking apart everything and checking connections
Resetting CMOS with the 2pins and a screwdriver
Resetting BIOS with Asus Crashfree BIOS 3 (Using an USB stick)
Reseeding CPU
Booting w/o SSD installed
Booting with just 1 of the RAM sticks installed (tried both)

I feel like I know the most probable cause;

Yesterday I changed the DOCP Profile for the RAM so it runs on the full 5600mhz, my guess is the overclocking didnt work out and the MoBo wont detect the RAM anymore. (Even though it did work fine with the DOCP Profile until after I took it apart in the morning.)

I dont think I fried the DIMM slots when I did that though, as the RGB on the RAM Sticks still lights up.
I dont know why all my attempts at resetting the BIOS have failed.
Im just super frustrated as I cant find anything online that I havent tried already, and as my Motherboard is fairly new there is no info on this specific problem with this Motherboard.
Its also really annoying as I know that in theory everything should work together, I mean it did yesterday.

Resetting CMOS and resetting the BIOS with Asus Crashfree BIOS 3 both didnt do anything for me Screen always stays black. (I connected the DP cable directly to the Motherboard)
(When Resetting CMOS I removed the PSU cable, drained remaining Energy by holding the Power Button for 20sec and then Shorted the 2 CMOS pins with my Screwdriver for about 15sec.)

SPECS:

i5 13600k
ASUS Strix B760i Gaming Wifi
32gb TridentZ Neo RGB DDR5-5600 CL28-34-34-89
Gainward RTX 3070
Corsair SF600 Platinum

Any help is really appreciated as I wont be able to call ASUS customer support till Monday.
Its just super weird because everything was working fine yesterday.

 

[Darkbreeze]

When you connected the DP cable directly to the motherboard, did you REMOVE the graphics card from the motherboard, or was it still installed in the motherboard?