2011 iMac 27" Intel 510 SSD My fans were going nuts. After fan control software failed to make any difference, I ran the hardware test and got the error above. Any idea how to figure out what I may have failed to plug back in ? (Or hopefully not broke on the MB ?). Before I reconnected everything I even tried disconnecting SSD and HD but same crazy fan action. I've read the guides and associated HDD fan issues but this issue seems to be with other fans. Sorry if I've transposed Oh's and Zero's above. All three fans for me seem to be going ballistic, but iStat is reporting reasonable temps (which should be the case).