I have an old PC from which I took an old GTX 960 discrete graphics card to use on my new PC, but I never thought to switch back to the onboard graphics before I did so, and trying to use the old PC, there is no output from the onboard graphics.
CPU is an Intel Core i3-4150, and the motherboard is a Gigabyte GA-H81M-DS2V. There is no output on boot on either VGA nor DVI-D.
I have tried clearing the CMOS by shorting the jumpers on the motherboard, but nothing.
Is my old PC dead, or what else can I do to try to fix the problem? Some kind of USB boot solution?