Hi,
I have got a hp pavilion dv5000, when I turn on it the screen goes blank.

Power led glows, I hear for a few time the fan, disk led flashes intermittently and also I feel that the DVD player tries to load.

If I try to click on caps lock or num lock, leds don't respond to commands. I tried the hard reset pressing the power button for 30 seconds with the battery and the power removed. Nothing to be done by connecting an external monitor....

What can I do ?:(

Thank you

Firstly nothing will sounds like the good old nvida defect bit of info there. I would say phone HP but it is such a pain in the ass! take it back to where you bought it and they should hopefully sort it if not there is support here. I went through the same thing about a year ago :)

ok that was weird half my post didnt turn up . call / go into where you bought it for and ask for a repair due to your suspicions it is the nvidia defect else if you really have paitence call hp.
http://www.pcpro.co.uk/news/230097/updated-hp-confirms-nvidia-flaw-hits-desktopslittle bit more info

on hp site I see that graphic chip is Ati not NVidia.
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00603915&tmp_task=prodinfoCategory&lc=en&dlc=en&cc=us&lang=en&product=1831917

complete name of notebook is : HP Pavilion dv5027ea Notebook PC

check the labels on your laptop, i only suggested it because it has exactly the same symptoms as that defect :)