No signal on screen on old PC, no beeping but lights/fans on
Hello! I found my old XP computer in storage - probably not turned on since ~2010 or so. I've plugged it in and connected it to a monitor via VGA, but it shows no signal on the screen.
I tried two different monitors and two different cables and not sure where to go from here. The computer doesn't seem to make any beeps - the front panel disc drives light up as if they've received power and the fans start to run, but I just don't get any visual signal whatsoever. I also tried replacing the CMOS battery, reseating the RAM and GPU, and I cleaned the inside and checked for board damage. There are no other video ports, so I have no idea if it's a port problem.
Photos of the inside and of the GPU (let me know if you need more):
Bu iyi bir soru mu?