Question ROG STRIX Z590-A Gaming WiFi, no POST, no beep, no diagnostic LEDs ?

[ymotaqi]

The motherboard does not boot and has the following symptoms:

When the power button is pressed, the fans and RGB turns on.

When the power button is pressed, the motherboard voltages 12, 5, and 3 are connected.

The motherboard does not beep.

None of the diagnostic LEDs light up.

USB voltage is off.

VCORE voltage is off.

The BIOS file was downloaded from Asus site and installed using the Q FLASH button.
It updated the BIOS with no problems but it made no difference.

I would appreciate it if anyone could guide me on the cause of the problem.

 

[Lutfij]

Welcome to the forums, newcomer!

When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.

 

[ymotaqi]

ASUS RogStrix Z590-A Gaming Wifi/CPU Intel Core i9 10900K/ 64GB DDR4 CORSAIR 3600MHZ VENGEANCE RGB PRO /CoolerMaster Liquid Lite 240 RGB/ NVME M.2 SSD Samsung 970 EVO PLUS 2TB/ Power Green GP750B-OCPT 750W