Dock VB043AA (compatible with Elitebook 8470p) - which power supply ?

Hello,
There are 2 docks compatible with the 8470p
a 90w dock (VB041AA)
a 230w dock (VB043AA)
I don't see real differences when checking the specs:
http://portal.tugraz.at/portal/page/portal/Files/zid/files/datenblatt/computing/HP-Docking.pdf
Is it possible to use the 90w power supply using the "230w" dock ?
Why is there a power difference between the 2 docks ?
Thanks a lot
This question was solved.
View Solution.

Hello GalaxHe,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I have read your post on how you are looking to use a specific docking station for your notebook, and I would be happy to guide you towards a resolution!
I am sorry, but to get your issue more exposure, I would suggest posting it in the commercial forums, since this is a commercial product. You can do this at: 
http://h30499.www3.hp.com/t5/Notebook-HP-ProBook-EliteBook/bd-p/bsc-274
I hope this helps!
Regards   
MechPilot
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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