As long as it follows standard ATX psu specs,you should have no worries.And even some of the longer 1000watt+ psu will usually fit into a mid tower case.Just might be a little cramped for space up top is all.Go ahead and toss one in and see how things go for you.I have a THERMALTAKE 850WATT PSU,and it fit just nicely into my case.Goodluck.
AMD X2email@example.com TOLEDO
EVGA NF4 SLI MB
2X EVGA 7950GT KO IN SLI
4X 512MB CRUCIAL BALLISTIX DDR500
WD300GIG HD/SAMSUNG 250GIG HD
ACER 22IN WIDESCREEN LCD 1600X1200
THERMALTAKE TOUGHPOWER 850WATT PSU
COOLERMASTER MINI R120
How do PSU's with a single 120mm fan on the bottom side handle the inverted system? Because they're basically just blowing all the hot air directly into the metal and plastic seperator above the PSU and I wouldn't think that would be the best ventilation, or does the 120mm fan on the bottom do a good job of blowing it all out the bottom?
Or would you recommend getting a PSU with the fans located along the front and back sides (near the switch and plug, and the opposite side)?
I think almost any PSU will fit, the problem would be for the cables to reach your MOBO and stuff.
For example, I have a Gigabyte S3 Mobo and a thermaltake PSU, and since the PSU goes way down and the 4 pin connector (I think its power for the CPU) is located way up, the cable barely made it. I mean BARELY. In fact, I had to force it a little bit.
By the way, I got a PSU with fans in front and back 'cause I think i would work better in P180.
For example, will a Silverstone OP850 fit? How about an 850W Enermax Galaxy?
The PSU in the bottom of a P180B can be mounted either way up as I tested this theory with the 850w Strider and it worked fin either way. There is about 1.5" of clearence below the PSU and 1" above so the fan works fine and is quiet both ways.