Is it possable to replace the PSU of a Shuttle XPC SN27P2 with any PSU I've been looking everywere for one with no luck I want to do this becuase the current PSU that comes stock with the case is only 400W and most video cards need 450W +
No they don't, it depends what video card you have/want. A shuttle PSU is replaceable, but you need to find a specific one, and as you've noticed that's not easy. What card do you have/intend to get? 400W might be enough.
thanks for you're help but I've give'n up on the shuttle and I am just going to get a mid tower case so thats one less problem that I will have to worry about
Well you need to make sure the motherboard in the shuttle will fit the normal case!It should do if it's a micro ATX board, but if anything else I wouldn't like to say.