Companies like Hp use proprietary components ,to limit the amount of upgrades you can do yourself.It can be aggravating.
Almost any standard PSU will work,the only problem might be whether the new one will bolt right in to your case .
Either pull your old one and take it right down to your favorite Computer parts store, or go online to an HP forum ,and find someone who has changed one for your model.They can give you the Brand and model that fits.
