My October Jupiter hashes at 425Gh/s (has the Die0) issue. I've wasted so much time (and downtime) messing around with it I've given up.
Any Toronto-based Jupiter miners interested in some pocket scratch in exchange for coming in to get mine up to speed?
I guess it is a 4VRM board... just unplug the heatsink fan and watch the temp until ~83ish and see if it pops back on.. plug the fan back in at that temp regardless.. if you go over 85 or more you have a chance of knocking out another die (but usually that one will pop back up on a reboot)
if that doesnt work you can dig around with the tuning volts, etc etc etc but by now it doesn't really matter. You are not going to get a lot back even if it comes on
you mineaswell jump into the overclock thread and sup up the others and if that one pops back up then its gravy