Wow...no pinched fan cables or anything? How long has that one been mining up until that happened? What type of power supply were you using? What's the ambient temp where it's mining?
Sorry for the questions, but I've got 6 that have the 49.9k/50k mod. 3 have been running non-stop 24x7 for 2 months, the other 3 have been running non-stop for about 3 weeks now. When I've modded them, I did add some small heatsinks to the mosfets because a little extra cooling never hurts when overclocking anything.
I suppose repeated high current spikes and overheat may help damage the mosfet, I think those little LFPAK rated for 76AMP might be possible but to allow continues drain @76AMP the pad need to be able to handle the heat dissipation of SMD mosfets. Which explain why they are overheated and blow. For same reason anything to cool this baby down will help bigtime!!
You're talkin about our little 5 chip seeds, right? How the F**k can they be blowing up FB's and FET's and Hash chips like that?
I'm just amazed at how many seeds are taking a dump for no good reason.
Perhaps it was a batch of bad FET's and or Hash chips or even FB's...It HAPPENS! And it is quite possible we are witnessing one of those coincidences right here on our forum.
Reasons for my amazement:
Scrypt should not cause an over-strain on any components! Period!
After all, they are made to run SHA-256 at 60+W, for Aunt Jamima's sake!
Scrypt at full blast won't even touch that figure if even by half! NEVER! Or something is very wrong with the components.
Could be anything, Could be a power surge from a faulty barrel tip as we know most of these are home made things Ive had a few faulty tips and I am almost positive thats the reason the 2 of mine blew and the only 2 as a matter of fact and I have quite a few. I am pretty sure the the faulty power cable stuffed up the mofset, reason I am pretty positive is that I was using a Multi-tip barrel connector and pods that blew were next to each other on the same splitter, now what are the chances out of all the pods for that to happen. Anyway atleast I know how to repair and repaired 1 and 1 is waiting for the FB to arrive to fix this. Mofset + 2x FB = fix