What got changed on the boards we are getting and the one user 2good received ?
For one im seeing a lot less capacitors on the board
and im tsting the board now on all diff kind of clock setings and voltage settings.. but im not nearly getting the "Good" efficientcy number as 2good was getting with undervolting!!
Marto did you reduce your BOM to save money with a result a less efficient miner..
the most efficient im getting now is 1,08 W/GH and thats 660mV 400Mhz or
1,13W/GH 760mV 700MHz
that no where near the 0,78 2good was getting !!!
Hi,For one im seeing a lot less capacitors on the board
and im tsting the board now on all diff kind of clock setings and voltage settings.. but im not nearly getting the "Good" efficientcy number as 2good was getting with undervolting!!
Marto did you reduce your BOM to save money with a result a less efficient miner..
the most efficient im getting now is 1,08 W/GH and thats 660mV 400Mhz or
1,13W/GH 760mV 700MHz
that no where near the 0,78 2good was getting !!!
There is no difference in terms of power efficiency
between the bom with a lot of caps ( it was intended for 8 chip version) and this one .
IF you use bigger PSU you can see about 15% difference.
Als check again 2 good measurements @ the wall .
Best Vesi
Im using a IBM DPS-2000BB (2000W PSU). im measuring the power draw from the wall using a voltcraft energy logger 4000.
Ill post some results im getting later.. but till now the efficientcy is quite dissapoiting.. o ps my psu is around 0.96 Cos Phi regarding efficientcy of the unit it a realy good PSU and not putting out a lot of heat so that means its efficient!