This is no machine to shed a tear over, cover looks more like a toilet seat, though the one I got my hands on has built in WIFI, and an Athlon processor, Power problem, won't turn on.
Night's endeavors involved taking the thing apart (re service manual on HP.com), and cleaning pretty much everything (whole bottle of air!)
oiled and refluxed the heatsink and processor.
it seems to be a power issue, like it won't kick over, so I removed the hard drive (after putting it together), amazingly this got it to KICK OVER, and boot to Bios.
Also removed the battery, as to to draw.
as for now, I can't boot with hard drive, it totally dies until it's flipped over, and the technique so far is..
-hold reset button for 10 seconds WITH power adapter plugged in
-flip it back over and the orange "charge" light should blink
-then you can turn it on.
You know, when I finally took the motherboard off the shell, I found (!!) the "rechargeable" CMOS battery (yes you have to completely dismantel the computer to get to it.
Perhaps this battery is causing the trouble?
My hope that in leaving it to "charge" the CMOS batt, it should easierly kick over.