Been giving this PC to have a look at, basically the monitor is giving a no signa/scrambled picture and the gfx chip is onboard so pretty sure that it or the connector is toast (as it feels loose and moves around). Now the board supports AGP 8X and has 2 spare PCI ports so was gonna get a AGP card on the cheap to try as the PC is still outputting sound, thing is it has a lovely little warning not to use a 3.3v AGP card, which i think is AGP 1x but not 100% sure so wanted to check.
The board is this one http://www.asrock.com/mb/overview.asp?Model=K7S41GX