[SOLVED] Bought used gpu, monitor turns on but stays black

[neagumihai96]

So i bought a used 1050ti. The previous owner said it worked great(already thinking to get a refund) but i've tested it on 3 different known working computers and it won't work. Everytime, the monitor turns on but it stays black, not receiving any video signals but the gpu seems to be getting power because the fans start spinning.
I've tried to reseat it( a lot of times) in all 3 computers(which btw still work with the gpu they had before), tried routing the monitor through the vga port om the motherboard and the monitor won't turn on at all...i'm dumb, it's probably because there is a gpu now....

I've tries it over a few dozen times. It still won't work. Is it defective?

 

[DSzymborski]

Three computers and all still work with old GPUs means I'd suspect the GPU. Used GPUs are a crapshoot.

 

[neagumihai96]

Three computers and all still work with old GPUs means I'd suspect the GPU. Used GPUs are a crapshoot.

Yeah, already talked about a refund. Tired of his "it works, you're not installing it rught" accusations