oh yea, i love those things.
if you send me the G5, i can take it to work and I MAY be able to revive it on the IR rework station. its possible the caps in the power supply MAY be bad, but i doubt it. The caps on the logic board look perfect. If LED#1 and #2 are on, thats telling you that the logicboard sees the standby power, main power, and all voltages are present and stable. if you hear a unsettling hiss from the power supply then i would worry.
Anyway, the 3rd LED means the Video chip is initialized and LCD/GPU is communicating. Since this stays off, that means either the logic board cant see the LCD display's EDID, or the video chip has come loose from the board or went bad.
if you send me the G5, i can take it to work and I MAY be able to revive it on the IR rework station. its possible the caps in the power supply MAY be bad, but i doubt it. The caps on the logic board look perfect. If LED#1 and #2 are on, thats telling you that the logicboard sees the standby power, main power, and all voltages are present and stable. if you hear a unsettling hiss from the power supply then i would worry.
Anyway, the 3rd LED means the Video chip is initialized and LCD/GPU is communicating. Since this stays off, that means either the logic board cant see the LCD display's EDID, or the video chip has come loose from the board or went bad.