Question PC turning on but no display/peripherals not working

[Ahkturan29]

Pc was working fine earlier today but after trying to install some LED strips, the computer itself turns on ( all LEDs, fans, etc, turn on) but does not display and peripherals don't turn on either. The red "CPU" led on the motherboard lights up also. I cleared cmos, swapped out the GPU, unplugged led strips, and still nothing. Did I kill my motherboard while trying plug in the led strips? Is it the cpu?
I built this PC myself but am still new to all this stuff. Any help would be appreciated.


Cpu is ryzen 2600
Motherboard is gigabyte x470 ultra gaming

 

[CountMike]

Pc was working fine earlier today but after trying to install some LED strips, the computer itself turns on ( all LEDs, fans, etc, turn on) but does not display and peripherals don't turn on either. The red "CPU" led on the motherboard lights up also. I cleared cmos, swapped out the GPU, plugged in monitor to mobo port and still did not work. Did I kill my motherboard while trying plug in the led strips? Is it the cpu?
I built this PC myself but am still new to all this stuff. Any help would be appreciated.


Cpu is ryzen 2600
Motherboard is gigabyte x470 ultra gaming

Yes, it's possible to ruin MB by overloading or shorting any component, CPU unlikely. Btw, plugging monitor to MB soesn't work anyway becase that CPU doesn't have graphics component.

 

[Memphisto]

Do you have a little display on the motherboard that shows a boot code kind of like here?

If yes please tell us what kind of code it tells you when you try to start the pc

 

[Ahkturan29]

Do you have a little display on the motherboard that shows a boot code kind of like here?

If yes please tell us what kind of code it tells you when you try to start the pc

No codes, just 4 red led lights (cpu, dram, vga, boot). The cpu light stays on after powering up.

 

[Ahkturan29]

Yes, it's possible to ruin MB by overloading or shorting any component, CPU unlikely. Btw, plugging monitor to MB soesn't work anyway becase that CPU doesn't have graphics component.

Yeah, I know but I wanted to see if I could at least get a splash screen but I still could not. Is there a way I can test the motherboard to make sure that's what the problem is?

Yes, it's possible to ruin MB by overloading or shorting any component, CPU unlikely. Btw, plugging monitor to MB soesn't work anyway becase that CPU doesn't have graphics component.

Yeah, I know but I wanted to see if I could at least get a splash screen but I still could not. Is there a way I can test the motherboard to make sure that's what the problem is?

 

[Memphisto]

Hm... without the codes its not that easy to find out but still possible...
Because it stays at the "CPU" Led the first thing i would try is remounting the CPU...
Doesnt sound very likely but taking it out and putting it back in often works wonders

Does it cycle through all of the LEDs or does it stay at the CPU right from the beginning?
Could it maybe be that you unplugged one cable from the PSU to Plug in another for the RGB?

Check if the "CPU" Power cable is plugged in on the Motherboard AND the PSU

 

[Ahkturan29]

Hm... without the codes its not that easy to find out but still possible...
Because it stays at the "CPU" Led the first thing i would try is remounting the CPU...
Doesnt sound very likely but taking it out and putting it back in often works wonders

Does it cycle through all of the LEDs or does it stay at the CPU right from the beginning?
Could it maybe be that you unplugged one cable from the PSU to Plug in another for the RGB?

Check if the "CPU" Power cable is plugged in on the Motherboard AND the PSU

I've remounted the cpu already and that didn't work, unfortunately. The led stays on "cpu" from the startup. I've checked the psu and everything seems plugged in properly.