I have never had a 5850. Although I've had a friend who'd owned it. He had been financially tricked into getting an AMD 1090T or 1100T (forgot which), 4 GB RAM and an HD 5850 in 2010 for over 3000 dollars. Well, the point of this writing is not that. Many people are continually saying the 5850...
I've been researching non-stop for a couple days and have reached the point that I feel like I need to ask the experts.
Just the facts:
I am Upgrading an HP Pavilion Slimline s5-1110 so I can use an MSI N750Ti - 2GD5TLP which requires 20A on the +12V rail
The current PSU is an HP part No...