That seems more like a problem with the breakout board than with the Avalon, and kinda verifies some of Optimizer's testing and concerns about thin copper.
it is both but you are not wrong I would say you are ⅔ correct.
Asking a pcie jack to handle 250-275 watts dc is asking for trouble.
and the optimizer testing along with my temps finally getting warm enough show a flaw in the boards in that the air that comes from the psu blows warm and hits the back of the pcie board and does nothing to cool where the pin meets the socket.
the fans pulling air directly across the connection and not behind the connection are a good cheap fix.
a better board with more copper will help the socket on the psu end not melt which is where
I think you are fully correct.but on the avalon 6 end the same issue is there and a perfect psu side may simply move the problem to the avalon 6 side pcie jacks.
for now the fans will keep the break out boards safe.
I was going to have y cables made that would be a pair of 18 gauge cables into the break out board and then connecting to a 15 gauge cable into the avalon 6
which would mean 8 break board jacks into 4 avalon 6 jacks. this would solve the issue in that the break out jacks would do 125 to 150 watts max.
but it allows for a lot more power into the avalon 6 jacks. as much as 400-500 watts per jack in case of a loose connection on the avalon jack side.
So I concluded that the fan idea is best in the short run. I do suggest a 3 jack avalon solution for the future and a heavy copper fix for the break out boards.
Mean while if you are like me and have 2880's and avalon 6's watch for this.
the fan solution really seems to work. also note I have the top jacks of the break out boards filled as they get the most cooling from the fans.
I asked for custom cables on the 12th
Would you be able to make f-m-f combiner cable
I have some really good 15 awg 3 ft cables hooked into an Avalon 6 miner.
While the Avalon end seems decent the psu ends get hot.
I have some 20 jack break out boards for 2880 psu
So I need eight jacks to run two Avalon 6 miners
I rather use 16 jacks not 8
Reply came on the 13th
Would you be able to make f-m-f combiner cable
I have some really good 15 awg 3 ft cables hooked into an Avalon 6 miner.
While the Avalon end seems decent the psu ends get hot.
I have some 20 jack break out boards for 2880 psu
So I need eight jacks to run two Avalon 6 miners
I rather use 16 jacks not 8
I can definitely have this produced at a price similar to the M-F-M cables listed on the first page, but theres pretty low demand for them (the 16awg cables are pretty reliable to 300W+) and it would need to be a custom order >100pcs, and with a 3-4 week delivery time.
I realized that this idea would reduce the issue on the breakout boards but a very good shot at moving issue to the avalon 6's
So I remembered the little fan controllers I purchased the mesh which is heat resistant and made the board coolers for now.
In a magical perfect world made for mining BTC and digital coins the breakout boards would have 25 to 50% more copper and the avalon 6.5's would have 3 pcie jacks.
In this world be very careful and mind those pcie jacks. on the psus and on the avalon 6's
I am going to buysolar and the solar array those avalon 6's are on different psu's. I will look at the pcie jacks very closely to see how they are doing.