Question Computer stuck on integrated graphics and not switching to graphics card (but showing in hidden devices in device manager) ?

Jan 23, 2022
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Hi,
I recently upgraded some parts of my dads old computer. I changed the cpu, added some more ram and installed an ssd. When I turnt it on everything seemed to be working fine except for the fact that the display is stuck on integrated graphics. I tried changing the settings in bios, installing drivers, trying to switch it in device manager but it doesnt show up. I figured I may have damaged something in the motherboard so I replace it with a new one. However the problem is still occuring but this time the graphics card shows up under hidden devices in the device manager. I have watched pretty much every youtube video talking about a similair issue but nothing seems to work. I know the graphics card is not faulty as I put it in my pc and it worked perfectly fine. Any help to fix this issue would be greatly appreciated. Thanks in advance.
 
Jan 23, 2022
3
0
10
full system spec?
monitor connect to the gpu?
GPU - Gigabyte RTX 750 Ti
Motherboard - Intel DQ77CP
CPU - i7 2700K
8GB DDR3 ram
1tb hdd & 240gb ssd

And yes I have one monitor plugged into GPU and one into integrated graphics and the one connected to Integrated Graphics always turns on and the one connected to gpu remains off