Bitcoin Forum

Hi guys,

After buying a nice quantity of BCU1525 I decided to buy, try and review the new HashAltcoin F1 Blackminer. An FPGA minser based on Xilinx k7 325 chips.
I will write a full, detailed, rich of technical info and unbiased review.

i will also test the overclocking limits of this machine with air and also inside one of my immersion cooling boxes (yes I build and sell ready to use immersion cooling boxes for fpgas)

I have absolutely no connection with the HashAltminer company. Hopeully this review will be of help to the comunity.

I will post this review on my -almost ready- FPGA tech blog. They also accepted to be interviewed by me. The full interview will be posted on my blog in a few days.

* if you like my review I would appreciate a +1 merit *

You can find my first review here. I tested 2 coins for now: https://youtu.be/_Idrf6gXm-s

https://image.ibb.co/hdKwE9/f1.png


- 28 September 2018 -

I got in contact with Kesen through their Discord channel, which guided me to place the order.
He has always replied quickly to all of my questions. This is a big plus considering that when I tried to deal with the Baikal customer service it was an hell of a nightmare! Usually it's not easy to contact and get support from the Chinese sellers. I have to say that this time I have been pisitively impressed. I asked what kind of payments they could accept. The only accepted payment at the moment is BTC. Once sent the BTC he asked me for my full address. DHL shipping is included in the price. And this another plus from my point of view.
He promised to ship ASAP. Let's see what ASAP means. Will keep you updated.


- 29 September 2018 -

Kesen contacted me and sent me the tracking number. I was really not expecting to see my package shipped after only 24 hours. So far so good! DHL tracking ---> http://prntscr.com/l0am1q


- 02 October 2018 -

The F1 Blackminer is arrived! DHL delivered it 2 days before the esitimated delivery date! DHL for eva
Here are some photos. I will start my tech review tomorrow morning (evening here now)


- 05 October 2018 -

I did a first review. Tested 2 coins. 0xBTC and Bismuth

https://youtu.be/_Idrf6gXm-s


- 08 October 2018 -

I took apart the F1 Blackminer. Video review!
https://www.youtube.com/watch?v=ZzzND6LbC0M


https://i.imgur.com/m1W0rmG.jpg

https://i.imgur.com/ZTfmXZe.jpg

https://i.imgur.com/qzYpbvD.jpg

https://i.imgur.com/7FFWe93.jpg

https://i.imgur.com/LJnC3dz.jpg

https://i.imgur.com/g4uNS8A.jpg

https://i.imgur.com/tVpiWs6.jpg

I'd like you to remove your thread at least until you get the miner and verify that it works as advertised. I also have some serious doubts that you're capable of doing that.

why should he do that?

i know him , he is good at doing that

Actually no. This is a life review step by step. Did I write that it works as advertised? If it won't I will post it. It will be an honest and unbiased review. People that knows me also knows that I am 100% honest. Expected delivery the 4th of October. So not too much time to wait if it's real or not.

Thanks. Also a review that includes communication review shipping review payment review and so on can be of help to the comunity.

I wish I had such a review before ordering my Baikal X10. A nightmare the shipping and the communication.

lets see on the 4th  :D :D :D

can't wait to receive it. DHL already sent me the message about the taxes to be paid. So deliver will be on time. Possibly they will deliver it on the 3rd. Sometimes DHL delivers one day before.

I am kinda excited to the this miner. It's not a GPU nor "the usual" ASIC. I hope to have also my immersion cooling box ready by the time it arrives but I highly doubt. I have to build 6 boxes for 6 BCU1525 owners. Anyway the important for now is it test it on air!

In theory DHL, looking at the tracking number, is out for deliver. 2 days before the expected delivery date. But I don't think they will deliver today. It's already 5pm and usually the DHL courier comes never later than 3/4pm. Anyway DHL is DA BEST

F1 Blackminer arrived.

Will start to work on it now.

LOL cant' review it. I don't have the login to the webpage control panel. Not a big deal cause here is evening already and I will be sleeping soon. Tomorrow I will get the login info from the F1 guys and start the review. (if anyone has idea what could be the login "default" info I can give it a try.

Anyway it have been delivered TWO days before the estimated shipping date.

Well, I certainly had some nice words for them :D Guess I'll have to eat them (or not). Very interested in this.

Looking forward to this.

Looks like the unit has done its time in the mines!!

forget about any reasonable payback/roi period on this hardware miner
https://github.com/bismuthfoundation/mining-algos/blob/master/Docs/Fork-FAQ.md
this is just the beginning.
many more small coins will fork with an hashing algo change.
And I'm not surprised by this choice of developers. Especially watching this bs.
http://i.piccy.info/i9/fdb85737222d5cb02f0defe947fceb8b/1538523554/17836/1262969/0xbtcnetworkchart_500.jpg (http://piccy.info/view3/12663895/989c09f637205979dd128665e0cf5c0f/)http://i.piccy.info/a3/2018-10-02-23-39/i9-12663895/500x314-r/i.gif (http://i.piccy.info/a3c/2018-10-02-23-39/i9-12663895/500x314-r)
thanks to the blackminer f1 guys for raping the 0xbtc network.

Ok I am testing it right now. It will take me 3/4 hours to test, make a nice video and review. Hold tight!

Guys I will post the review tomorrow. Video review. I am taking the videos. Then I will edit the vids with PIP And various with some video editor. Tomorrow I will post all. Keep holding TIGHT :D

So is there an option now to buy the miner and physically get it?  If this thing works as advertised I'd buy one, but I wouldn't want them to host it for me for a year.

I joined their channel on discord.
I said " Hi sons , how long does the shipping take " ?
Instant ban / kick ... They might be legit , they might not , but they behave like assholes.
I was gonnna buy two pieces but I won't because I hate this behaviour.

Guys, this is obviously a scam.
OP deleted my post where I gave my point of view about this.

After they make their money on these and develop something better instead of putting the old dirty miners out in the trash bin they ship them to you..

no need hosting, it can ship to you immediately

"Hi sons" is very impolite for chinese.

Here ya go guys.

Tested 2 coins for now. 0xBTC and Bismuth. Will test more later on

https://youtu.be/_Idrf6gXm-s

I did not delete any post. Are you crazy or what?

LOL that miner in the photos looks second hand... haha nobody is going to buy this and fall for your scam and the ones who does fall for it deserve to loose their money.

A.  What is up with your website:  http://fpgablog.tech/   Looks like it was built from a template, a few relevant articles but a bunch of generic stuff, anyway, when i click the on read more for full review, nothing happens!

B.  Good video, is there any way you could post approximate daily revenue for the coins you tested?  I know it could change, but current values?  Since I've never mined those coins I don't know what a good or bad hash rate is!

You have a lot of xx0x0x0 Chips :/ 

A) I am still developing the Blog. I am doing that, Writing articles, I am building immersion cooling boxes for the FPGAs (BCU and F1), I am making reviews, I am taking care of my dogs and I would like to have a couple of minutes to relax also. If someone would want to help I would really appreciate it.

B) I am not here to say buy it or do not buy it. I prefer to jsut post the hashrate and you can calculate yourself the ptoential profit. Like you said profit changes quickly based on net hash and on exchange rate. You can calculate how much you can earn NOW. You can't predict how much you will calculate tomorrow.

Yeha I noticed that also. Actually those x and 0 changes very quickly. On some algos are all O on some others are mixed. I will ask them to give me a detailed explanation about what those 0 and x are. They used the graphical interface of the ASICS miners but actually the real mining could/should be different. The reported hashrate locally and at the pool is correct. So I don't think those are faulty chips but something else.

Will ask and let you know

Tomorrow I will psot the review of two more bitstreams. XDAG and another. Also I will disassemble the unit and make a review of the internals.

I took apart the F1 Blackminer. You can find the video here: https://www.youtube.com/watch?v=ZzzND6LbC0M

In the next video I will show the STEP 1 cooling upgrade to improve cooling and hahsrate.

As soon as I will receive the BCU1525 I will also do all of the tests and ugprades

I'm looking forward to your immersion cooling. I think it will be amazing.

Today I found that the temps of the chips can be improved QUITE A LOT. There is a big marging of improvement. The immersion cooling box for the F1 will be ready by Friday 19th

Your immersion cooling box is very cool, like your work

any follow up? curious about these FPGA miners and from what I have seen recently they do not seem profitable so I am curious now that you have had it several months what is your resulting opinion of it?

I have on F1 hosted and the profit keeps decreasing, they are making too many and killing the profit.  Started off at $10 a day now its $4.

damn yea that is a drastic drop.

Gawd what a goofy thread.

Does anyone have an invite for the althash discord group? I need to get on there for a while. Thanks.

I'll ask once more politely and then I will use curse words.

maybe no one has it?

Go to hashaltcoin.com and scroll to the bottom, there’s a discord icon.