Upgrade PSU?

ok so I have a HP Pavilion p6310f Desktop PC -

Specs = http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01949155&cc=us&lc=en&dlc=en&product=4107914&tmp_track_link=ot_search#N67


and I want to install a Radeon 5770, and was wondering if I need to upgrade the PSU and if so, which one would be a good choice and fit
2 answers Last reply
More about upgrade
  1. Yes you would need a new PSU Corsair 450 or 550 would be good choice or a similar size Antec. Those should fit fine in your case.
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139003
  2. are PSUs easy to install? I've never done that kind of thing
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