"No found operating system" Pt II =)

I'm not good at distinguishing this model numbers and the slight differences..., so I'll ask here

The laptop itself says it's a Pavilion dv9700 but when I talked to HP, they said (according to the ID number on the background... they say it's a Pavilion dv9720. 2 questions):

1. What is the difference between a dv9700 and a dv9720?

2. I find a HARD drive dead... but his dv9720 and HP (once again) tells me my wifes system is a dv9720, had sticker says dv9700; Are they compadable?

Thanks again for any help anyone can offer me.

Chris

Yes it will work on this model. Here you will find documents of Hitachi on this model which is shown on the picture of this auction (HTS543212L9A300).

Tags: Notebooks

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