MBM 5 vs. Bios

I need to know what's up here, My Bios is showing my 12 volt line at 11.90 ish, however when i'm windows MBM shows a reading of 11.35 ish. I was able to bump my 5 volt line in my PS via a pot.
I don't seem to be having any problems with stability but I don't like that I'm not close to what it should be.
If anyone has any thoughs please pass em my way.

Hope your belly is full and your mind content

Don't sweat the small stuff, and it's all small stuff.

MBM isn't 100% accurate on voltage readings, that's not it's strong point or it's most typically used monitoring feature, mostly because I've found it wanting in this area...

I'd go by the bios reading, which is within acceptable ranges.