It too gives me bad +3.3v data (comes out as 1.52v (perhaps it's the Vagp or something????)) and low -5v and -12v readings but so does Sandra.. and seeing your replies, it seems that MBM5 does too for some people...Have no idea why though, perhaps a nonstandard memory address that Epox uses that confuses all these monitoring programs???
That's exactly what my 3.3 comes out too also. When I boot up, my 3.3 comes out being what it should be. I'm pretty sure it's misinterpreting it for the vagp. I lack a technical explanation also, but I think this is what is happening.