Black screen, help

[andrijahn]

Yesterday i got new mobo, cpu, ram and chassi and i built my pc. When i start it up monitor doesnt even recognise it like i didnt plug anything. I have these LED light up on motherboard but i dont know if it is supposed to light up or if it is becouse of the problem. I have no bios , nothing just black screen. i dont know how to further explain this i tried troubleshooting but it is same. Tried on 2 different monitors and tried connecting cable to mobo and to graphic card. All the fans are spinning.

CPU: AMD Ryzen 2600
Motherboard: ASUS Prime B450M-K
RAM: Hyper X 2x4gb 2666
GPU: Msi GeForce 750 Ti

 

[RyanTodd1]

Your default video will come from the GFX card if there is one installed, if not it will use your onboard GFX. Have you made sure you have definitely connected to your GFX card and NOT your motherboard?

 

[andrijahn]

Your default video will come from the GFX card if there is one installed, if not it will use your onboard GFX. Have you made sure you have definitely connected to your GFX card and NOT your motherboard?

Yes, i tried both, tried unpluging GPU and connecting to mobo it is still the same

 

[RyanTodd1]

Have you tried a different cable?

 

[andrijahn]

Have you tried a different cable?

i only have one and it worked on my last pc

 

[RyanTodd1]

Have you tried a different cable?

i only have one and it worked on my last pc

When a wire is moved around, it is not uncommon for the wires inside that cable to become damaged.

I'd try a different cable first or perhaps use the same cable on a tv or something.

 

[andrijahn]

Have you tried a different cable?

i only have one and it worked on my last pc

When a wire is moved around, it is not uncommon for the wires inside that cable to become damaged.

I'd try a different cable first or perhaps use the same cable on a tv or something.

I fixed it, took it apart for the third time and i got it working finally nad it even booted my old system without reinstalling it, but i have a new problem now. My mouse and keyboard work for 10 seconds and just shut off

 

[RyanTodd1]

Have you tried a different cable?

i only have one and it worked on my last pc

When a wire is moved around, it is not uncommon for the wires inside that cable to become damaged.

I'd try a different cable first or perhaps use the same cable on a tv or something.

I fixed it, took it apart for the third time and i got it working finally nad it even booted my old system without reinstalling it, but i have a new problem now. My mouse and keyboard work for 10 seconds and just shut off

Are they plugged in to the Motherboard or the USB's connected to the front of your case?

If they are connected to the front of your case, reconnect the cables to the motherboard.

If they are plugged directly to your motherboard, it would suggest some damage to the Motherboard which could have also been effecting your video. There isnt much you can do with a damaged motherboard except replace it, unfortunately.

 

[andrijahn]

Have you tried a different cable?

i only have one and it worked on my last pc

When a wire is moved around, it is not uncommon for the wires inside that cable to become damaged.

I'd try a different cable first or perhaps use the same cable on a tv or something.

I fixed it, took it apart for the third time and i got it working finally nad it even booted my old system without reinstalling it, but i have a new problem now. My mouse and keyboard work for 10 seconds and just shut off

Are they plugged in to the Motherboard or the USB's connected to the front of your case?

If they are connected to the front of your case, reconnect the cables to the motherboard.

If they are plugged directly to your motherboard, it would suggest some damage to the Motherboard which could have also been effecting your video. There isnt much you can do with a damaged motherboard except replace it, unfortunately.

It is a brand new motherboard i really doubt i damaged it and my mouse and keyboard work in BIOS but they dont when windows is up. So i am guessing it has something to do with new mobo and old OS problem cuz of the new drivers