PC Boot issue

Relevant Specs:

MOBO: Asus ROG Maximus XII Hero (WI-FI)
Cooling: NZXT Kraken Z73 360MM
CPU: Intel I9 10850k
RAM: Corsair Vengeance LPX DDR4 3200Mhz (2 x 8GB)
PSU: Honestly, can't remember the brand, but it's 1000W
GPU: Asus ROG Strix GeForce RTX 3060 V2 OC Edition
NVMe/Boot Drive: WD Blue SN550 2TB
OS: Windows 11 Pro


It all started with what should have been a simple RAM upgrade installation. To be clear, my PC worked just fine before I started this process, booted almost instantly never had any issues. I removed the Corsair, and replaced it with 4 x 8GB sticks of the G.Skill Trident Z RGB 3600MHz. It took three tries to get the PC to boot after installing. Finally it boots and Windows loaded up, checked to make sure it was reading the RAM properly, it was. So I restart and try to go into the BIOS to adjust the RAM speeds. It just would not allow me to enter the BIOS menu for some reason, after about 15 failed tries and multiple troubleshooting methods, I take my PC apart, reseat everything, and remove the CMOS battery for an extended period of time. I turn the PC back on and finally get into the BIOS. After adjusting the RAM speeds to 3600MHz in the BIOS and saving, the pc restarts as expected and the mobo goes through multiple checks and eventually lands on the A2 error (IDE Detect, essentially a boot drive error). My boot drive was working just fine prior to changing my RAM Speed to 3600MHz in BIOS. So I shut down, remove the CMOS battery again and swap the old RAM back in to see if it will at least boot just in case the new RAM was the issue. It still throws the A2 error, I cannot even get back to the BIOS menu even after resetting the CMOS battery, my monitor just stays idle and the PC doesn't post. I did also try removing the NVMe and reseating it after I got the error. I've tried everything I can think of along with whatever I could find on google with the tools that I have at my disposal.

Any insight as to what could actually be wrong or some solutions I can try would be greatly appreciated, I'm beyond frustrated and I'm not sure what else to do at this point.

Yes, I did remove all peripherals and drain the mobo by holding the power button for several seconds. I did also try using the reset button on the board. Still getting the A2 error on the mobo. The m2 drive is covered by a plate, at no point in the process did I touch it until the end when I decided to try reseating it, so it was already giving me the A2 error before I ever touched the drive. I was careful to ground myself before touching anything as well. I'd say I left the CMOS battery out for at least an hour before putting everything back together and giving it another try.