My friend is looking to upgrade his old cyber power computer, it currently has a 660 ti in it with a Xtremegear 800w PSU. He wants to upgrade to a 780 or a 780 ti, I have already checked that his motherboard and CPU are compatible, but when he originally received his computer, it did not have the sticker on the side of his PSU, so I cant check how many amps are on the rails, so I have no clue if it will be enough for a newer graphics card. If anyone knows how many amps this PSU outputs, it would be extremely helpful, thanks.