Topic: Buy the most profitable 60Mhs A2 Farm Boy LTC miners, replace old Zesu - page 2. (Read 8223 times)

Also, it looks like the Farm boy uses the same FDTI VCP UART usb interface as the Zeus Miners.   Virtual COM port (VCP) drivers cause the USB device to appear as an additional COM port available to the PC.  So you should be able to connect that usb from the miner directly to your PC OR Raspberry Pi, and with the VCP windows  or linux driver, you can run Dmaxl's cgminer or BFGminer...  exciting!

Hello Everyone,

I just discovered this thread and I am excited about getting new more efficient miners.   

This is exactly a Zeus Thunder x3  27Mh/s except with a different PCB, which is awesome for me.  I have 1 gigahash of Zeus Miners - 20 Zeus miners and i do all the maintenance and upkeep myself.  i know this miner like the back of my hand!  And I also have 6 110Mh/s Innosilicon that run MarkAz's image.

i was thinking perhaps we should try to do a group buy of the 110 since they are end of life.  They are truly plug and play, i haven't touched a single one of my six in over a month, and usually alll that ever goes wrong is a corrupt SD card.  i have had them about a year and they have been running continuously since they arrived.  we could ask innosilicon to leave out the PSU for a deeper discount, which it sounds like they would be delighted to do.   Then we can power 2-3 of them on a IBM 2880w server power supply The 2880 has been shown to run consistently, reliably at 3200-3400w, and its Platinum).

If i got the farm boys, the first thing i would do is run new wire from the PSU directly to the terminal on the PCB.  This eliminates that male-female pci-e connector which is a source for heat generation which cuts into your power efficiency.    on the Zeus, they would get very hot and randomly melt because they have 250-300 watts going thru them.  This new farm boy uses less power so that shouldn't be nearly as much of a problem.  Personally i would keep the PSU outside the box simply because it is a nasty environment inside the box and I want to be nice to my PSU's so they will last.

So what do you think of a group buy of the 110Mh/s unit?  Someone also said innosilicon offered a generous discount on 5, i believe...

yes they do

Thanks,they run quite cool but are a bit loud. I can't compare as I don't have any 88 or 110's. I didn't have much time today to do much about the software... I will check it out over the weekend. You can ask them about more of the wr703n's Trying to find out those same questions I would have liked a pi with the a2 normal software. but these may be flashible and maybe someone with the skills could flash them with something like the moded latest a2 software.

Nice looking miner and seems all parts are snug fit.
Does the USB cable, hub & DDWRT router comes when you buy three farm boy?

Great pictures, thanks for taking the time daveolake!

Overall an interesting design - the only thing I don't like about it is there is basically almost zero airflow around the non-heatsink sides of those PCB's, just a tiny bit next to the big main heat sink holes.  I imagine it must not be that critical or they probably would have done something about it - how hot does the unit run compared to the 88 or 110's?

Cool that the PSU fits into the box like that, makes for a really convenient form factor...  Do they provide flashing instructions or anything else for the WR703N's?  TBH, I would just toss one of those in each unit, for $10 each from China or even $20 Prime off Amazon, there's no benefit to not having one per box.  Plus then if something happens, it's just one box down not all 3.  And what kind of software is running on it?  Some tweaked version of DD-WRT?  Will they sell you more of them, instead of just the 1 per 3 boxes, and how much do they charge?

From your power picture, it looks like they're working at spec or slightly better than spec, which has been my experience from Innosilicon - nice to have a manufacturer who doesn't promise the world and delivers what they say.

Nice to see they've kicked it up a notch with those fancy stickers... They seriously need to see if they can find a graphic designed - literally ANY graphic designer. 

TBH, I kind of discounted this unit and wasn't super interested, but after seeing it, it definitely looks more promising than I thought.  If you had a WR703N for each one, I think it would be a great solution, even better than the 88's or 110's, which I think are awesome units.

https://www.dropbox.com/sh/qxobyne4hgtjoi0/AAD6HU5Jkkgjr7XwliRe1bbZa?dl=0
couldn't get the pics to input here... so here's the link. They were packed well. my power supplies went in with no problem, the leads for the power were not needed, they use 4 pci-e power 6 pin. and run mining at 550w. working and mining in a short time.

sorry for the delay, my main pc at work died and couldn't do anything from there all day. will get some stuff out here tonight.I will post all my pics soon.

Will be as in depth as I can. I should have info going up here in about 12 hr from now  11:15pm my time so should have stuff to post by 11am or so. off to bed talk to ya all tomorrow. post any info your looking for and I will try to answer.

It looks like the blades might be vertical instead of horizontal, but it's hard to figure out from the images - if you can, take some good pictures of the inside of the boxes as well. 

yes please share the dimensions of the miner, i still cant figure out it's only 21cm in length...

got my miners today ...half hr ago will unbox tomorrow. I will update then.

Can you run one by itself, via a PC? Just thinking if possible to buy 3 and split them up between my friends and I.

One extension off of this - can you use just 6-pin PCI-e connectors, since the additional 2 pins are just grounds?  Some of my Terminators came from the factory like this (using 6-pin connectors plugged into 8-pin sockets on the blades).

Oh, and also can you use the Raspberry Pi as the computer to run this, instead of the WR703N?  I would prefer it if I could run my custom firmware. 

My questions:
1/ boards inside are the same as in A2 Terminator 110 ?
2/ boards inside are new or used ?
3/ how many 8 pin PCI-E connectors needed? 4 for each board?

Thanks.

A2 Terminator 110MHs consumes around 1050W only with older version (longer) boards inside. With PCB version 3 and 4 it consumes aprox. 100W more.
And there is another problem, your PSU inside is usually only 1000W, which is insufficient for frequency 1200MHz (needed for 110MHash)...

I have some new ones I bought when I had a hashra order, thankfully got all my money back...I'm going to use Evga supernova 750 B2 power supplies. I have 10 on hand.

Looking forward to it! If you don't mind me asking, which PSU's are you getting for them?

My 3 are on there way... should be here Thursday... will have pics and write up over weekend- or Monday, Tuesday.

FWIW, my current host is Toomim Brothers, which I'd say is fairly authoritative on the subject, and their opinion was that "Yes, the A2 Terminators are very heavy. The steel they use for the case is much thicker than necessary, and the aluminum heatsinks are also larger than needed. If they had a better design, they could be a quarter the weight and an eighth the size."

Jonathan also elaborated on the 10% power difference:
"There is a lot of variation in how silicon gets doped during the etching and doping processes of making transistors. As there are two types of transistors on a CMOS silicon chip (n-channel and p-channel MOSFETs, depending on whether the dominant charge carrier is negatively or positively charged), there are two separate dimensions for how much doping a chip can have. More doping results in faster chips that have more leakage current. Less doping results in slower chips with low leakage current, but which might need more voltage. The speed of the N and P MOSFETs can be described as a position on a rectangle, and placement in some of the corners results in worse performance or energy usage than others."