@philipma1957 Regarding the burnt cap, that might be a gray area, because we can't really tell if it was due to heat or over-volting or maybe both, just too much variables. Maybe blockc can do a testing just for good faith, have 1 miner over volted to 12.8 and have another miner run at constant 75-80 degrees at 12.2 volts and see which one dies first.
I would test this myself, but I don't have the funds to spare for the Avalon 6's to test =P
There is really not much reason to ask them to run it. On over volt you should be within :12V DC ±0.2V . If you are not warranty is void, so I don't see them supporting over volt to that point. 75-80 should not be a issue it is within Working Environment: 0C to 35C.
How you mention you don't have funds to spare for Avalon 6 test, I would strongly suggest you don't try things like switching fan orientation. It chances are voids warranty under: Equipment Tampering And Disassembly.
Thanks for the inputs, but then there won't be any fun of owning one. Or I would of just rent hashes instead. I'm the kind of person that likes to play around with stuff =) even if it voids warranty, makes it more exciting =).