Never mined before,useless with any kind of programming,dont know if this is of any use to more experienced people.
I have ten MLDs running on a win10 desktop using modded usb2 hubs with 140 amp power supply spliced in.
I also had the problem, where 1 MLD would drop to 2 -2.5 Mhs for no apparent reason. Power was not the problem-plenty of spare,could not find any problem with connections,until I changed the usb leads from the hubs to the pc.
It seems it was an intermittent or damaged data lead,or possibly shield.
The old leads read fine on a meter.
All 10 now running rock solid at 876Mhz.
To run at 876 did you need to adjust the core voltage and if so what is it set at? Thanks.
Yes,the core voltage is set to .80v, memory at .82v-I could probably lower mem volts,but while its working I dont see the need.