Did anyone upgrade their 5GH BFL order to a 7GH and receive it? Just wondering if anyone knows what the real difference is between the two.
Better ASIC chip? New Firmware? Better cooling? etc
It is because BFL messed 'up' when they designed their unit they opted for a single heat-sink... (seems reasonable)
Unfortunately they did not work out that one chip, like a unicycle is very difficult to balance on. ESP. if it is at a corner
so to fix this mess they did the only unreasonable thing.... added 2 chips.
But wait... oh shit. we are now loosing money because we did not calculate for 2 good chips.. (and to try an work out a binnable formula for 2 semi-defective chips is WAY too expensive..)
Attempt to 'recover' some money by selling 'upgrades' I.E by paying more money for something you already have... you can upgrade what you already have...
The sad thing about all this... is that if any of the BFL staff were researched or understood what they were doing, they would realize you can purchase "C0's"
Or in other words an "Empty" chip case with leads.....
The issue with the heat-sink and the in-ability of the chips to 'self level' was pointed out to them last november.....
Only when you have many years in production can you see a pitfall before it hits you.... it's not magic... its experience.
They were looking for engineers in Asia and I still have not heard anything back since Nov 2012...