Quote from: sidehack on July 03, 2018, 05:50:15 PM

You were lied to, or you seriously misunderstood. Who did you buy from?

These are tested at 200MHz, with a practical max of 275MHz. With 55 cores per ASIC and 8 ASICs per board, that's GH=0.44*MHz for 275MHz clocking in at a theoretical peak of 121GH.

Under pretty ideal cooling and power conditions, the BM1384 ASIC is good to around 500MHz which means the absolute best case liquid-cooled-miracle performance for this device could only be 220GH, still less than half what you want.

(in case you're wondering, I designed and built the R808 so I know more than "them")

Well, then you'd know ;-) I am working on something, will get back to you shortly.

As an aside, at 200mhz, I generally run around 80-100 gh/s per unit on CKPool, which seems pretty fair. Only problem I have ever really had with the unit, apart from not being able to cycle it up to higher rates, over heat constraints, is the regulator heating (which is why I use an additional fan).

Cheers