HWiNFO can't report disk details because of the AMD RAID drivers which do not return the required information. You might try to update these drivers to the latest version, sometimes this helps.
"Temperature 3" on your mainboard might be a bogus reading of a not connected sensor input, or it might be measuring some place on the mainboard, which I'm afraid only the mainboard manufacturer knows exactly. So if it seems to return values in invalid range, just ignore it.