Prospero Black arrow x3 ?

[Sweminer777]

Hey, so i just got one of this on my hands.

I got it for about 160us whit free shipping.

I Have some questiones, Is the psu Swap Able for a more secure one, and how about the overclock , the seller told me it's cappable to clock to 1.5thz?.


My electricity is FREE so i don't have concern about that, i am even considering get an Antminer C1 for about 250us need to check my wallet .

But the idea is to use the free electricity and make something off it. 2thz is what i am looking to aim right now-



Any modification ideas and experience is worth to look at, noise reducing  also. 

[heslo]

Careful, these units are fucking shit and have a history of burning up.

As for the PSU, there's nothing that I know you can swap out but if you hit up the main BlackArrow thread you might find someone that bought a compensation PSU and got stuck with it after they lied and never sent any compensation.

Best of luck

[Sweminer777]

Yeah i've readed some about burning unit's, to be honest i haven't been able to find much about the unit, i tought it was a good buy before i even did som research , i might have to inspect it my self when it arrives , tought i am still considering buying that Antminer c1 unit, might even sell the black arrow and use 2x antminers, well ill see how it goes, still need to make the Electrical installation  will try to keep updated here as soon as i get my unit

[hmblm1245]

I have some BA X3s and the originally shipped ones have an issue burning the chip. Pop it open and see if you have the ones shown in the pic. Take a look. you may need to have the boards replaced. I replaced all of mine and they have been stable for almost 2 months. One of my orginal unit did suffer from 3rd degree burns BA replaced the whole unit...eventually.

https://blackarrowsoftware.com/support/index.php?/News/NewsItem/View/4/prospero-x3-issues-update
http://www.blackarrowsoftware.com/download/vishay_hashboard.jpg

[MCHouston]

I believe there is a post some where that shows you how to fix the problem on the circuitry I would definitely do this before leaving it alone.  Otherwise happy mining.

[Sweminer777]

I believe there is a post some where that shows you how to fix the problem on the circuitry I would definitely do this before leaving it alone.  Otherwise happy mining.

You have to remove 10 resistors, big green ones on the front of the boards, they are the only theres, BA have uploaded a video, it was them that were burning and was not supposed to be there aparantly some factory misstake.

[GreatNorthData]

Careful with that thing. We had a client show up with 40+ of those back in the day. (Oh 2014...) Thankfully most of them were DOA. I have had literal bolts of electricity jump from the shit PSUs. If you really have to run it, make sure it is somewhere it won't cause any damage if/when it goes up in flames.

Over clocking won't happen, be happy if it runs above 1TH. The efficiency makes it a money loser.

May God have mercy on your soul.

Edit: I strongly recommend under volting it as suggested above. Will prevent your death.

[sidehack]

Yeah, I've had two of these for over a month and haven't even bothered firing them up yet. One hasn't been unboxed. The other came in with half the caps already mushroomed. I recognize the garbage brand as one of the most common failures I saw in the couple years electronics refurb was my full-time job. If I fire them up at all it'll be after removing or replacing all those capacitors, and not on the stock PSUs.

[DebitMe]

Yeah, I've had two of these for over a month and haven't even bothered firing them up yet. One hasn't been unboxed. The other came in with half the caps already mushroomed. I recognize the garbage brand as one of the most common failures I saw in the couple years electronics refurb was my full-time job. If I fire them up at all it'll be after removing or replacing all those capacitors, and not on the stock PSUs.

This is who you should really trust, he knows his stuff, pretty much these things are a scary amount of trouble, and no way could I sleep easy with this things running.

100% agree with aforementioned comments.  The owners of BA, who contracted out all of the work to build those units because they were pieces of shit engineers and businessmen, have stolen millions from people on this forum.  I would not recommend doing business with BA either now or in the future. Get rid of their fire hazard as soon as possible (if bought online get a refund and send it back immediately).  Get some antminers instead, much more reliable, much better customer service.  You will have an all around better experience.