So today i picked up a g5 for £25. No idea what the model was but it said it powered up so i figured why not. Can always use the case for a hackintosh and sell what works if it doesn't boot. Anyway turned out to be a 2004 2ghz DP, 4.5 Gb ram!!, fx5200. no hard drive though. The machine powers on and chimes but has no video and after around 2 minutes the fans slowly ramp up to full. Things ive tried are resetting the pmu and reseating the ram and gpu with no luck. Want to try everything before i do the oven trick Any suggestions would be great.