Hi Everyone.

I just need a bit of advice if possible.

Just received my latest S7 and 1 of the 3 blades is throwing out an insane amount of HW errors.

So far I have tried swapping the PSU from a bitmain 1600 to an EVGA 1600 and it still has the same issue, I have also checked for loose heatsinks and no issue there either, the other 2 blades on the machine are hashing really well with very low error rates pretty much none to be honest.

I have posted a screen of the 1 blade hashing on its own, as I tested all 3 one by one.

The blade does eventually stops hashing after around an hour or so, then when restarted its perfect for around 4-5 minutes and then dumps a ton of errors in one big go, the temp of the machine also seems to make no difference, from running at 40c - 60c, as I have tested every possible scenario and can't seem to figure out why.

I have listed what I have done so far testing wise below.

Reduced frequency
Tested in cold environment
Tested in warm environment
Tested 2 different working PSUs
Changed the 8pin signal cable
Tested a different port
Checked for loose heatsinks
Changed the Ethernet (Clutching at straws with this one  )

I understand it may need RMA but if this issue can be resolved by myself it would be easier, as although bitmain support do eventually get issues resolved I understand it can take some time for the turnaround.

http://i940.photobucket.com/albums/ad241/flamemc/Untitled.png