Dell inspirion 1720 trouble help!

[xomega]

i have a dell inspiron that doesnt post. i tried to dell troubleshooting procedure. the whole fn and power button. the buttons come on then off<3 at top> then hard drive light bllinks once. thats it. screen doesnt blink or anything. the system doesnt shut down. it stays on. fans running and all. i removed the ram and all components. then fn/power. it then blinks a error for the ram missing. i tried a old lcd i had. no go on it. anyone have any ideas? system board? processor? im stumped.
thanks in advance guys...

 

[frozenlead]

Replace the RAM so that it doesn't give you the RAM error and then boot it up. Try using an external monitor.

 

[xomega]

i did. and also tried a old crt monitor i had laying around. same deal. the hd light blinks a time or two when i hit the power button. also, the only way i can get the three lights beside the power button to light up is if i hit fn then power. there is no code then. they just light up for about 2 seconds then go dark. the fans keep running on the unit also!

 

[frozenlead]

My guess is a bad motherboard. Is the unit new?

 

[xomega]

bout 2 months out of warrenty

 

[kenzz0]

faulty mainboard