tuf gaming x570 plus no boot or display

[922]

tuf gaming x570 plus  I power on and the led sequence: dram  yellow light on for 10 seconds, cpu red on for 4 sec, vga white flashes on white and immediately turns off and loops back to dram. the bios light never comes on. I changed graphic cards, hard drive, cleared bios and cleaned dram modules. The last time I used it I put it to sleep using the power - sleep. Next time I used it it would not boot. Any suggestions? Thanks, Mike

[Jiaszzz_ASUS]

Hello @922 

Thank you for reaching out to us.
Based on your description, when the system fails to boot, does the Q-LED indicator stop remaining steadily at DRAM?
Could you please provide the part number of the memory you currently have installed and confirm whether it is listed on the TUF GAMING X570-PLUS QVL?
We recommend that you perform a bare-board test following these steps: 
- In an insulated environment, remove the chassis and all external devices.
- Install only the CPU on the motherboard. 
- If the CPU has integrated graphics, use it for video output; if not, install a graphics card. 
- Install a single RAM stick in the DIMM_A2 slot, correctly connect the PSU, and check if the system can boot into the BIOS.

If needed, please also clear CMOS and refer to the following FAQs:
[Motherboard] ASUS motherboard troubleshooting via Q-LED indicators
[Motherboard] Troubleshooting - No Power/No Boot/No Display
[Motherboard] How to query (CPU/memory) QVL List?

Thank you.