Question Revert to csm

[Avalanche223]

Can anyone help me I disabled CSM and want to revert to keeping it on my computer won’t boot to bios and just shows no signal I gave all the usual trouble shoot methods to fix but no luck can anyone give me guidance oh how to fix my specs
Motherboard-Asrock b550M-C
CPU- AMD Ryzen 5 3600X
Gpu-GIGABYTE VISION GeForce RTX 3060
Ram-Corsair VENGEANCE RGB PRO DDR4 16GB (4x8GB) 3200MHz
Psu-power spec 550 watt 80 plus bronze

 

[mmp09]

While you gave all usual troubleshoot methods, did you try clearing CMOS (Reset BIOS) by shorting the CLR CMOS or CLR RTC pins on the motherboard, when PC is completely off.

Short it for 4 - 5 seconds and try to power on.

 

[Avalanche223]

While you gave all usual troubleshoot methods, did you try clearing CMOS (Reset BIOS) by shorting the CLR CMOS or CLR RTC pins on the motherboard, when PC is completely off.

Short it for 4 - 5 seconds and try to power on.

Yes tried it no luck