I am having trouble with understanding what you are saying here?
this modification is necessary, because bitmain chip voltage and data voltages are different, Serial chip feeding becomes need more stable voltage.
What do you mean by "bitmain chip voltage and data voltages are different,"?
when chip goes down to under 0,61 Volt then chip fried. (under 11V) if overclock your miner you must to have a lot of amperes, otherwise your voltages goes down immidiately. i add 2200uF/16V capacitor each hashboard.
Agreed that if the chip voltage goes under 0.61V / 11V Supply there could be a problem, however this is a 135 chip system which at 12V gives 0.8V / chip and at 11V it's stiil 0.73V on the chips?
This capacitors filter SMPS's peak and 500Khz 12V charge time. we are talk about more than 100A. This hungry machine suck 12V quicly. and ferrit inductor job is choke inductor too. this method is more stable for silly PSU's.
Are you suggesting that the Capacitors & Inductor in the picture are the only additions to that part of the circuitry and that there is no Buck Converter chip on the other side of the board as I am guessing?
Rich
- Yes there are absolutly different with data signals taking from schimitt triggered hex buffers.
Look at bm1385 PDF.
-i dont know which chips series or parallel on this new 135 chip board. 15 series possible. if feed 12 optimum 0.8V, if feed 10 min 0.66V.
but we know this is overclocked model, finally you cannot feed 10V for 700Mhz.
-i dont know but i dont think so, this is not step up or down buck converter because this coil needs large mosfets and controller, i dont see them yet