Boot looping no post Z790

Hi Everyone,

Hoping for some input here.

My system ran fine for the last half a year, 2 days ago I one afternoon powered off my system, and the next day is was stuck in boot looping with no post. I believe I might have had automatic updates on Asrock Software and other Software.

I have tried quite a few things, I suspect that my motherboard is corrupted hardware of software wise.. When I boot it all fan spins and light up but CPU/DRAM led light up, moving rams around or removing them does nothing, unplugging the cpu power breaks the bootlooping but the system of course still don't get me to post then.

ASRock Z790 RIPTIDE WIFI Bundkort - Intel Z790
Intel Core i9-14900KF Raptor Lake-S CPU - 24
Inno3D GeForce RTX 4090 X3 OC - 24GB GDDR6X RAM
Corsair Vengeance RGB DDR5-7000 C36 DC - 48GB
Samsung 990 PRO SSD PCIe 4.0 NVMe M.2 - 2TB
ASUS ROG STRIX 1000G Strømforsyning - 1000 Watt
Arctic Liquid Freezer II 360 A-RGB - CPU
Lian Li UNI FAN SL-INF 120 Black- 3 pack
Thermal Grizzly Kryonaut - 1g

Hi,

I don't even get to the bios post - screen stays black.

I've tried to reset cmos, both with battery removal and screwdriver connecting the jumper(Didn't have a cap)

The water cooling is half a year old, the pump seems to be running as it should.

Thanks for the questions.

I believe it's a faulty motherboard, at least I have returned it by now - so the technicians will check - if it's faulty of course I get a new one, if it wasn't the motherboard they will bill me for the spend time.