Quote from: cryptobradley on July 09, 2021, 08:54:42 PM

Quote from: Zaphodsghost on July 09, 2021, 06:23:32 PM

Thanks for the great Poduct, these have exceeded all of my expectations!

I have a couple questions, that although they have been mentioned on here, no definitive answers were given.

How many Slave/USB ASICS can the main unit control?

Right now I have 2 Full node/controls units with SBC and 6 Slave/USB ASICS.

Can I remove or disable the SBC to use the second contoller as a slave/USB ASIC? Possibly just plug into first control unit?

The second question will be a tricky one..

I am upgrading power supplies on all ASICs and I want to maximize the hashrate but definitely don't want to blow them up. SOO, each ASIC will have 375w available, I want to maximize Hashrate without killing the hardware. FYI I am using HP Titanium(up to 96% effiecient) server power supplies w/PCIe breakout boards.

In the Custom Miner mode can I put the power all the way to max as I have 375w availbale to each unit?

I guess Frequency will be a try and see.. Inch it up until things start acting odd?

Last thing I want to do is melt the hardware down, but I want to utilize the extra wattage in the most efficeint way possible.

Third thing, I have a linux box(Mint Mate) running full nodes for Digibyte, Decred, and soon Unibright. Would I be better served using that as my controller for the Futurebit ASICs?

Thanks again for an amazing product!!

$DGB

I can answer part of your question.

I have 1 full node and 2 standard units and I have each one running on a it's own 500watt power supply.
I have power set to MAX (95%) and frequency set to MAX (60).
Max power usage is 277, 270 & 268.
I'm getting ~3.8 Th/s on all three.
Total hashrate on the mining pool is 11-12Th/s

I've had them running for 1 week and so far they have not caught fire. :-)

I have 3 more standard units coming from the 2nd batch and I assume they will run fine plugged in to the powered USB hub.

Adding to this a bit.

I am running this on 95% with the frequency at 54 and was getting around 3.5-3.6 TH/s on the pool. I tried it at 60 but the TH's rate fell to 2 TH range for a bit so I bumped it down. I've also been messing around with the Newpac USB miners and one of the things I've noticed while overclocking those is that it seems each chip had its own ideal frequency range. Some chips run faster at 485 MHz than at 515 MHz for example. I suspect these might be similar. Gonna try 55,56, 57 next and see which level it runs best at. Afterwards I think I will decrease the power range a bit, I just tested it at 90% and saw the same or similar TH/s results. Note - I added 2 fans that I connected through USB and currently get temps of ~55° C to 65° C. Normally the temps were 65° C - 73° C so I think they easily drop the temps by 5-10° or so. I felt adding it would make the stock fan work less hard over time and prevent

PSA for anyone that wants to get a cheaper PSU that I can confirm works with these:

https://www.ebay.com/itm/173879120490 - Dell 03MJJP ~$20 (after tax/shipping)
https://www.ebay.com/itm/304058899205 - Breakout board ~$20 (after tax/shipping)

According to my calculations, this can actually host the full package + 2 standard units all overclocked to the max by itself for less than $40-$50 after cables. It seems these pull about 270W maxed out so if you used this PSU to run 3 units you should be under the 900W this puts out on a standard plug. As always DYOR but just wanted to put it on people's radar.

I am currently running this + 2 gekkoscience usb mining hubs with no issues. I was initially worried the PSU might be too loud since its from a server but it seems the entire set up is surprisingly quiet. When I move it to balanced the PSU slows down the fan speed as well and gets even quieter so that's pretty cool & unexpected. You can't hear it at all over the AC.