Nice review and pics, Dogie.

Have you done any mid/long-term testing to find out the average hardware error rate poolside performance?

Are you going to provide screenshots from the hashing unit or is the GUI still so ugly you would rather not have anyone see it?

I never take screenshots of software because they go out of date so quickly, and people tend to refer to them over the instructions and then get stuck. Error rate @ 37C ambient and normal fans is averaging 5.4% after 5 hours, 0.75% HW. Stats are taken directly from the BFGminer inbuilt so pool side is identical or above.

No its post reject, so I'm getting 1.26 at the pool after 6 hours. I've lowered the difficulty to 512 which effectively doubles the run time of the test by reducing luck variance. The hardware isn't shifting at all.

I'm forcing the test cell hot because they quote operating range up to 45C, so its only fair to see what happens at that range. At 25C it was overperforming at 1.30. Its worth noting that the high fan mode was just added for people wanting to OC or who live in the centre of the sun etc, you don't actually need it. Its one of the significant advantages of the BE200 people didn't really notice.

Ah okay, so you are basically stress-testing the unit.
The quoted 45°C temperature might presume that you would use the 5000rpm fan mode though

Are you planning on testing the overclockability tomorrow?

Well, it is good to see a unit which is properly optimised for free air cooling, even in the toughest environments.

They have a very solid cooling design, I find that most professionally built units from China are built with demanding climates in mind, as their hot and humid summers put a lot of pressure on miners.


Basically, the unit should still run fine on max fans even if your datacenter ventilation completely fails, which is a nice feature.
Dynamic fan adjustment would obviously have been better, but this option should also do the trick nicely.

Obviously I wouldn´t suggest anyone builds a datacenter without ventilation.

It was merely meant as an example that the miners should be fine on max fan settings, if there are (temporary) cooling problems at the hosting site.

I don't think anyone ever can. There isn't really bottlenecks to manufacture any more, chips are in hand, PCBs are easy, assembly is easy...

There's no point shipping 30kg miners round the world twice, and I need the unit to be able to help others.

I'm not sure what version of the software you have. I've got a super early one, you may have the new retail one.

Why not make a web-interface to configure and monitor the miner?..