AIO failure killed my CPU?

[975m]

Hello, I recently had a Corsair H150i AIO fail on me and now my PC won't boot. I'm assuming it's killed the CPU but I'm trying to establish that's what's happened before shelling out £540 (with 5% off and a free gift!) to replace an 11 month old CPU.

Specs;
AMD 7950X
Asus x670e-pro plus WiFi
Corsair Vengeance 32GB PC5-48000C30
RTX2070 super
Thermalright Peerless Assassin 120se (these names are getting tougher to deal with)

Like I said - the AIO failed, all the fans started flashing red, PC shut off, rebooted to a CPU overheat boot error, shut off PC again.

Installed the Air Cooler, booted PC and now I'm getting a VGA boot error on the motherboard.

Swapped out the GPU with an older one, same VGA error, now it's occasionally showing a CPU error on the motherboard, every 3-4 boot cycles.

Removed GPU all together to boot from CPU graphics and now it boots occasionally with no error but I'm getting nothing on screen from either DP or HDMI on either monitor or even my TV. I've read this mobo sometimes has a display fit on boot so I used the TV as an alternative source.

I'm not sure what else to test other than a new CPU now, am I missing anything?


(Excuse formatting, I'm on my phone.)

 

[975m]

I emailed them on Saturday about the AIO failure and got an acknowledgement email but nothing further from them yet. If/when they email back I'll chase that up with them. Everything was bought new from here, January 2023 so it's not second hand.
Thanks for the heads up.

 

[975m]

Thermal cut off should have saved the cpu no? maybe look into a full CMOS clear/battery remove and then try booting again.

Well that's just left me embarrassed.
I'd done a cmos reset via the cmos reset button on the motherboard a few times with no positive result, never thought of pulling the battery and doing it properly. That's annoying as well because the battery wasn't orientated "correctly" (15° or so off centre) and I always meant to fix that but never bothered. Now resolved two issues, the off-centre battery and the boot error.
PC is now back in action!

Can't thank you all for your help enough, very much appreciated community that I don't get involved in as much as I would like to.