Help! Pc won't boot

To tell this in short, A month ago I built my new pc,
i7 6700k
Corsair hydro h80i
16gb ddr4
Asus maximus viii hero
250gb samsung evo ssd
2tb samsung spinpoint

I never had any issue using my pc till tuesday, as I was playing a game, everything was running fine as ever, and on mondaynight I shut down my pc as I always do, tuesdaynight I came back from work, powered on my pc, no problems, started a game, BSOD.. Clockwork timeout error.. Restarted, after logging in bsod, safe mode was fine so I started deleting some latest programs updating drivers including Windows.. Restarted, logged in BSOD, did this a couple of times and always a diffrent error, I got so upset I just wanted to restart clean so I used reset my pc option.. During the reset BSOD!! Now when I restart I get, no operating device was found etc.. Now when I use my flash drive to install Windows 10 which works properly as I have used it more than once, I enter the boot, order restart, windows logo comes up with the rotating loading thing.. BSOD.. Ubuntu won't install either.. My ram shows up in my bios, I took out both cpu and cooler and reinstalled.. I switched ram slots, I tried one ram at a time.. Still the same issue comes up..
I'm quite desperate because it was over €2000 and I really can't afford that it's broken atm

Hello and welcome to the TenForums :)

Obviously this is not a w10 issue but hopefully you will get some good pointers to solve the problem.

Like you I suspected RAM but you seem to have ruled that out - however, I would run a Memtest86+ scan of both sticks just to be sure.

Have you tried resetting the BIOS to defaults just in case there is an error in one of the settings?

Can you run the PC in the BIOS setup mode and monitor temperatures + voltages to see if they are correct. Is your power supply adequate?

Do you use a graphics card or have you tried different connections (HDMI or DVI or display ports etc.).

Have you tried removing everything attached to the PC apart from the mouse and keyboard and monitor?

Hope these suggestions will help with the troubleshooting.

I am running memtest now as we speak, I will be looking into the results tomorrow for I have night shift atm thank you for the replies and hopefully we can come to a solution tomorrow..

So update..
My bios was apparently not the latest version, updated this woth however no effect to the problem, as I am sure one RAM is broken I have to memtest the other, the other one no longer shows up in bios and gives code 41 error on maximus hero, the other one I'll have to see in memtest,
As Arc suggested..
I only get display with gpu but not onboard graphics.. Faulty motherboard?

I think I can RMA the mobo but nit the cpu.. Maybe I'll just wait the result of memtest and try new ram first before heading that path

So! Wanted to give you guys an update!! Since I never give I was thinking about Arc's solution and figured maybe my monitor was too old for my mobo, so I plugged in my pc in my tv without graphics card and csm disabled and it worked!! However the BSOD persists but I figure that this outcome points me directly to RAM.. No?