I have come across this same problem but have not repaced anything. I have a lit LED on the motherboard so there is power in and it will drain when the power cord is disconnected and the power button is depressed for 5 seconds. I am currently waiting for tech support to reply to my query.

i have heard from tech suppport on my problem and they claim it is the power supply. i'm not buying that. i will continue to dig and post any info i find. the computer was running fine until i powered down. i find it hard to believe that there would be no other symptoms to a bad power supply.

Thanks ozak ...keep me posted about what tech support says....I have tried everything..../

Yes my light is also lit on the motherboard...

hey lbs623,
took my cpu to best buy for diagnostics and they said that yes, the motherboard was toast and that for the price of a new one (plus installation, i would imagine) that we might as well buy a new system. i find that difficult to believe.
i will be doing some checking on that.
i believe our problem was due to a lightning strike from some storms we had in the past weeks. wasn't something that happened all at once. we had probs starting up on a couple of occassions, but it did start up until this last episode.

I changed my motherboard, power supply, and the power cable....all from dell but nothing is working../.

Also took it to Best Buy....they said the power supply was working but they recommended the new power cable..

 

Is there a dell representative authorized to fix these machines or am I just stuck...

 

I had a gateway for over 8 years with no problems...still use as a back up...

 

any help is appreciated!!!