Computer shut off and haven’t been able to turn it on since

BluePanda

Hello! 

I’ve been having some problems with my pc lately, more so now it doesn’t turn on at all. I’ve had problems with my computer before, and quickly bought a new motherboard and psu, but even after changing the parts I still cannot get my computer to turn on. I’ve tried resetting the ram, clearing cmos, trying different ram combinations, jump starting power just in case it was my case not transmitting, and nothing works. 

Pc Specs:
EVGA 3080 FTW3
Ryzen 5900x
64GB Corsair DDR4 3200
Corsair RM850x (I bought a new Corsair RM850 just in case)
Asus AM4 Tuf Gaming x570-Plus (previously an MSI b570x Tomohawk)

Lambdaben

What does your q-led tell you?

BluePanda

Nothing, the only LED lighting up on the motherboard seems to be just for aesthetics/backlight, the q-led doesn’t light up.

Lambdaben

Try re-seating the ram and check all your power supply connections. After checking those, the next logical purchase would be ram, a cheap GPU just for testing and finally a CPU.

PowerSpec_MikeW

@BluePanda

Lets review. PC will not power on at all. You're seeing the RGB's on the board, so you have standby power to the board. You said you tried jumping the power switch pins and nothing happened correct? Watch your fans and make sure. You're not seeing a quarter turn of a fan or anything when you hit the power button?

BluePanda

@Lambdaben

I’ve reseated the RAM and GPU multiple times. The only thing I haven’t reseated would be the CPU.

@PowerSpec_MikeW
I do not see any movement on the fans when I try to jump start it or when I try using the power button. I double checked if the PSU works with an multimeter and things seem to be fine there too.

PowerSpec_MikeW

@BluePanda

Do you hear any sounds from the PSU when you try to start the PC?

I'd say it's time to breadboard it. Pull the board and put it on the motherboard box. CPU and cooler only installed. 24 pin and 8 pin to the board, no GPU. See if it powers on like that.

nolie

Make sure the CPU fan is properly plugged in. I would even try testing the cpu fan header with a different 4-pin PWM fan and try turning it on for just a second to see if the cpu cooler fan is good...

Some mobos wont turn on if theres not a CPU fan installed.