Black Screen on Start-Up

[MitchyGee]

Good day all

TL;DR -I tried to fix a freeze at my BIOSprompt with ctrl+alt+delete, my PC only gives me a black screen now. (please read my full post to properly understand whats went wrong, thanks)

Specs:
Motherboard - ROG Strix Z490-E Gaming
CPU - Intel i5 10600k
RAM - Corsair Vengeance LPX 32GB 2x 16
SSDx2 - Kingston SH 103S3240G - (one of which is my OS storage)
HDD - Bipra 1TB 2.5 inch 5400 RPM SATA 2
PSU - Corsair RM 750x fully modular
GPU - ASUS ROG Strix RTX 2070 ti
OS - Windows 10

All items are only 3 months old with the exception of my memory drives, the SSD's being 7 years and approx 6 years old, my HDD being one year old

Event
Today I turned on my PC and at the BIOS prompt screen the PC froze. In response I tried to access the BIOS, (previously my PC froze at the lock screen for Windows and I turned off the machine to turn on again. Unfortunately that corrupted my OS and I had to reinstall it so I was eager to avoid that) yet nothing happened so I tried other key prompts to get a reaction out of my machine. I tried Ctrl-Alt-Delete at which point the screen went black the PC restarted and upon restart, I was greeted instantly with a black screen and no options of any kind.
I checked the motherboard LEDs and the BOOT LED was on constantly, this communicated to me that there were no bootable drives detected(I could be wrong). I checked the plugs of the memory drives all seemed well. I checked the interwebs quickly and the only thing I found was that I should be able to access the BIOS but because I had a GPU it was interfering with the outputs to my monitor, so I changed the plugging arrangements, still nothing.
I am majorly confused and concerned as I believe that even if my drives are all fried I should at least be able to access the BIOS as should it not be separate from the OS etc? Yet I cant

Thanks for your time!

 

[lunarlander]

It maybe a RAM or CPU problem. CPU's don't die in most cases. So I would try different ram sticks, one at a time. And if you have an on motherboard video chip, unplug the GPU.

 

[MitchyGee]

It maybe a RAM or CPU problem. CPU's don't die in most cases. So I would try different ram sticks, one at a time. And if you have an on motherboard video chip, unplug the GPU.

The stuff is all new except the memory drives. I don't have any spare memory sticks to hand would replacing them be the only way to troubleshoot that issue?

 

[lunarlander]

If you can' get past the bios screen, it would seem like a ram problem to me, if you can't see the bios logo. If you have another PC, you can take 1 stick out of there and use it to test this theory. With hardware problems, you swap out the part with a known good working part and test.