All you can do is go into istat preferences and deselect "Drive Bay"
And as mentioned in my post above, iStat can't read my Backside sensor, so it reports 1100 deg, while Temperature Monitor which can read it, reports it correctly at 47.5 deg.When the software can't read a sensor it just outputs -127. That's what it outputs for my GPU Diode when I'm using integrated graphics on my MBP.
i think it would torch your lunch "put it the oven for 15 minutes" "ok i will just stick it in my mac and lunch in 2 minutes!" lolCheers guys, Figured that it's just something with istat and not the actual Mac as it runs fine, Might just use it to cook my lunch then