Weird USB issue

[Nizo_GTO]

So my grandmothers computer broke down, turns out someone messed with it and placed the graphics card in a different PCIE slot, so I fixed it and it worked until we turned it on, we plugged in the mouse through USB and it lit up but it wouldn't show the cursor on the screen, the keyboard wouldn't light up at all, and the external HDD I plugged in lit up, I checked whether or not it works on my own desktop, and they all work perfectly, can anyone explain to me why this is happening or provide a solution?

 

Thanks.

[Crunchy Dragon]

Try without the GPU and also test the PSU

[Nizo_GTO]

2 minutes ago, Crunchy Dragon said:

Try without the GPU and also test the PSU

its in through the motherboard

[Crunchy Dragon]

Just now, Nizo_GTO said:

its in through the motherboard

It's an integrated GPU? I thought you said it was installed in the wrong PCIe slot which caused problems, and now it's installed in the correct slot and is having USB problems?

[Nizo_GTO]

Just now, Crunchy Dragon said:

It's an integrated GPU? I thought you said it was installed in the wrong PCIe slot which caused problems, and now it's installed in the correct slot and is having USB problems?

the motherboard has no integrated GPU, I cant plug in the screen without the GPU

[Crunchy Dragon]

2 minutes ago, Nizo_GTO said:

the motherboard has no integrated GPU, I cant plug in the screen without the GPU

Ah. Test the power supply. Also, what are all the system specs?

[Nizo_GTO]

Just now, Crunchy Dragon said:

Ah. Test the power supply. Also, what are all the system specs?

AMD FX 6300

R7260X

Gigabyte GA-990FXA-UD3

Hyper212Evo

Antec 450W PSU

1TB HDD

Corsair Spec 01 Case

8GB DDR3 HyperX Fury 2133mhz

 

What can I do to test the PSU? I think its all working since its powering everything in the system.

[Crunchy Dragon]

Just now, Nizo_GTO said:

What can I do to test the PSU? I think its all working since its powering everything in the system.

Test it in your system.

[Nizo_GTO]

Just now, Crunchy Dragon said:

Test it in your system.

It doesn't have enough wattage to power my system, Ive got dual 980Ti, with a 4790K overclocked to 4.7.

[Crunchy Dragon]

3 minutes ago, Nizo_GTO said:

It doesn't have enough wattage to power my system, Ive got dual 980Ti, with a 4790K overclocked to 4.7.

Remove both of your GPUs and then test

[Nizo_GTO]

12 hours ago, Crunchy Dragon said:

Remove both of your GPUs and then test

The power supply works perfectly

[Crunchy Dragon]

11 hours ago, Nizo_GTO said:

The power supply works perfectly

Are the motherboard drivers up to date? Specifically the chipset drivers? Maybe make sure the BIOS is the most recent version as well