I need a dell power suply that over 450 watts without cutting the case
I need a psu that can uphold a radeon 4670. I have a 400w already, but im still worried it might not be enough. I used a power calculator and found out i need 12 @ 21 on the rail. Mine has that but im still worried about the power. i have a dell 4550 to so i can't really cut anything without destroying the computer
Mirco PS3 is the form factor of the PSU, the one you currently have is that form factor, ATX is the form factor and standardization of the motherboard. EPS12V just means that it has an 8 pin aux power connector as well as the 4 pin. It will still work fine in your computer.
Your current one only has 252W on the 12V rail which is a bit weak to power even a 4670, the one obsidian linked has 400W on the 12V rail which is more than enough to power a 4670.
ya im not to familiar hooking up a psu with more than one 12v rail.
what about this antec? im not sure if it will fit in the case, but my old PSU dimensions were 3.4h x 5.5(fan side to back) and 5.9 inches side to side. Im getting some Wiss snips soo so i'll be able cut the hole for the switch soon