Trouble with HP G5000 Laptop

[Dan81]

I've just got a HP G5000 laptop (which is just a Presario C500 with HP labels) and I can't find the source of the problem. The problem is that whenever I turn it on,it will stay on for 4 seconds then it will shut off. No POST whatsoever. I disassembled it and reassembled everything to no avail.

Anybody have any idea? I tried replacing the CMOS battery as it was dead but it made no difference.

Specs:
1.86GHz Celeron M
Windows Vista Home Premium (swedish)
15.4" LCD
120GB Fujitsu HDD (made by Hitachi I guess?)
1GB DDR2 SO-DIMM RAM
Model says HSTNN-C17C

[samanthban]

Re: Trouble with HP G5000 Laptop

just think that cpu or graphic power failure without knowing difficult to say some thing.

[Dan81]

Re: Trouble with HP G5000 Laptop

just think that cpu or graphic power failure without knowing difficult to say some thing.

Uses integrated NB. CPU isn't faulty either. I found a component that heats up quickly marked "PF 100" and looks like it's a inductor. Any idea what do the markings mean?