Mod_Man_Extreme wrote:
Well after some more research I've found that it was actually a mount for one of those huge old mobo speakers, but with some finagling it'll be no sweat to mount a few mini fans in the cavity to add the same amount of extra air flow form one large fan.
Ah, wasn't thinking that the speaker might be in there. Sometimes they're clipped to the bottom face of the case.
Also after a few hard knocks and a little exploring I've managed to pry off the case from the other side.

Dust........So Much DUST.........
Yeah, my parents were still working on the upstairs of the house when then had the an old PC that became mine. As such there was a lot of dust in the house. After it was mine, the PC started acting up. I opened up the power supply and there was soo much dust I don't know how it hadn't burst into flames.
After attacking that living mass of debris with a vaccum it's nice and clean and I can now move around both the plastic and metal screw wells freely to the other mounting brackets on the case with no problem.
Cool. Being able to move the standoffs solves one major problem. Now as long as a DVD whatnot drive will fit in there without interfering with other stuff.