Start-up Problem - HP Pavilion dv2432nr Entertainment

[Prman]

A couple of days ago, my pc wouldn't boot up.  I have power to the computer and touch lights illuminate and I can hear the fan running in the PC, but the hard disk does not seem to be booting.. I tried the hard boot,  I've checked  the drive, memory and nothing seems to be wrong there.  Is there a battery that is connected to the hard drive that may need replacing?  I have had this laptop for about 3 years and I'm thinking that maybe that is the problem, but I can't find the model number for the replacement.  I think the part that I am talking about is the disk shaped plasticized wrapped thing with the two wires.  This seems to be plugged into the hard disk and even when I disconnect it from the the hardrive, I can still get power, but there is no boot.  Can anyone help?

[Mumbodog]

There is no battery for the hard drive, maybe you are thinking of the cmos battery? This would not prevent it from booting.

See these suggestions

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01443371&tmp_task=solveCategory&lc=en&dlc=en&cc...

tests here

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00439024&tmp_task=solveCategory&lc=en&dlc=en&cc...