KaiRB

I just turned it on and I'm not sure why but ut booted to the BIOS. Thank you guys so much for your help, you guys saved me a lot of money.

My monitor just stays asleep, says no signal if I turn it off and on.

I found the CMOS and put a screwdriver across the two pins but nothing changed, so I removed the BIOS battery for about 10 min and then reinstalled it but once again nothing changes. When I turn my PC on, my keyboard's LEDS instantly turn on (usually it takes a couple seconds) but it doesn't register any inputs, nor does my mouse. My PC appears to be running fine because all fans are working, CPU is working, everything basically. I'm completely dumbfounded as to how this has happened twice.

I'm really confused as to why it can't boot either. My rig is a Ryzen 3600, MSI Armor RX 580 8GB, Asus B450m-a/csm, 2x8GB Corsair vengeance, and a EVGA 600W bronze supply. I know for sure the motherboard is compatible with the ram, so it's really frustrating and confusing as to why this has happened twice. I'm going to try what you guys said and then I'll update, thank you for all your help everyone.

I have Corsair Vengeance 16GB (2x8GB) 3000Mhz Ram and went into my bios to change the speed from 2133 to 3000 but after I did my PC wont post or boot to windows. I've reseated everything, unplugged and replugged everything, tried different ram slots, listened for unusual beeps, held down power button when unplugged, and attempted to boot into safe mode but nothing happened. This is the second time this has happened now, first time i fixed it by getting a replacement mobo from amazon but this time my warranty has run out and safe to say I am freaking out. I'm only 15 so I don't have the money or extra parts to test my pc, so this is my last resort before giving up. I'd also like to ask how it is possible for a PC to stop working because I changed the ram to run at the rated speed. It doesn't make any sense to me.