Does my FOXCONN 761MX(MOBO) works with an GTS 450? (I have a 450W A-Line PSU)
Yes, the GTS 450 will work for your board. It will go in the PCIe x16 slot. The GTS 450 requires a 6pin power connector, so you'll want to make sure that your PSU has one available or you can get an adapter. Otherwise, you'll be unable to power the GPU.
I already have a molex 6 pin connector for that video card, thank you for the anwser