Steemit blogging website:
https://steemit.com/review/@hagssfin/review-guide-hotmine-x5-upgrade-kit-for-antminer-s1-s3-s5

Nicely formatted version (February 17, 2018) is available for download here (Mega.nz cloud service):
https://mega.nz/#!c0FhDK6Y!pTfZtThRodoOKWTxeF9R1yd3ee4J4f6We0uGF6nLcrY


Picture copyright (c) Hotmine.

So, this is Hotmine X5 upgrade kit for Antminer S5,
which consists of two hash boards and one controller board.

Manufacturer is Hotmine, and their headquarters is located in Kiev, Ukraine.

Hotmine:
http://hotmine.io/

Products page:
http://hotmine.io/#products

It uses a 16nm node process ASIC chip manufactured by Bitfury.
The chip model is more specifically Bitfury BF16BTC8162.
Also known as Bitfury BF8162C16 (maybe different revision or marketing name ?).

Bitfury:
http://bitfury.com/

You can also use Antminer S1 or S3 parts (frame, heat sinks, fan) with this,
but you need to buy Beaglebone Black / Antminer BB board separately.

Beaglebone Black / Antminer BB board is needed for the controller board.

And you also need some additional screws and mechanical support parts for the controller board.
I will come up with some kind of solution for this.

I have Antminer S1 in my shelf, so I bought the BB board separately from forum user Mammon.

Technical specifications:

Delivery for this upgrade kit from Ukraine to here Finland was pretty quick via Ukrposhta.

I paid 0.45 BTC including shipping
(this was in April 6, 2017).

Here are some pictures of the X5 upgrade kit parts and my Antminer S1 parts.

You can click these pictures invidually to show a high resolution version of the picture located in a Imgur.com picture album.


Hotmine X5 upgrade kit and Antminer S1 parts.
(click to open a bigger picture)


Hash board picture 1.
(click to open a bigger picture)


Hash board picture 2.
(click to open a bigger picture)


A closer look on the hash board and Bitfury chips.
(click to open a bigger picture)


Controller board (without the BB board installed).
(click to open a bigger picture)

April 10, 2017 update part 2
Today I received the BB board in today's mail, and it was time to move on with this build.  


BB board attached to the controller board.
(click to open a bigger picture)

I made a support bracket for the controller by using parts that I was able to find in my everything-box  .
It consists of two PC case PCI-slot covers, some screws and other stuff.
Pictures will tell more about the details.


Controller support bracket.
(click to open a bigger picture)

Controller board with the BB board installed on the miner and connected.
(click to open a bigger picture)


This is how the finished miner looks like  .

(click to open a bigger picture)


And here is the test setup.

Test setup running.
(click to open a bigger picture)


After some testing I decided to change fans and these type fans are nice and quiet ones that I use now.

Front fan.                                          Rear fan (found in a old Dell pc, connector modified for right pin order).
(click to open a bigger picture)                     (click to open a bigger picture)


Here are some performance results after one and half hour of mining with the quiet fans -setup.

Miner status screenshot.
(click to open a bigger picture)

There is some difference in the temperature when comparing the two hash boards.

It is most likely because I used to different kind of thermal pastes in different boards and there is some performance difference.

So far I'm pretty happy with this miner and I've been wanting to do this kind of an upgrade for the good old S1 for a long time!  


If you got any questions, feel free to drop them in this thread.
I will try to give my best answer.


How to order?
You can make the order by contacting Hotmine using their contact form available at the website.
See more details at the website.

Hotmine:
http://hotmine.io/

Hotmine contact form:
http://hotmine.io/#contact

Nice, hardware porn 

I'm wondering why don't they sell it to broad masses of S1/S3/S5 owners? I am trying not to buy several X6 upgrade kits - still no result (may be they will say something before the end of this week, if not - I buy Avalon741). And I have not yet heard that someone bought these upgrade kits...

I sent an e-mail to them with exactly the same words! Looks like they just have no interest in such business...

I'd definitely be interested in a group buy!!!

I emailed twice for purchase but no reply.
I'm in if they can deliver.

Hey everyone.  Wanted to let you know that I received a response from hotmine!

They basically asked me:

1) How many & which kit do I want
2) My address

HagssFIN I assume since you obviously have a kit, you can vouch that this is a stand-up company?

I'm in US.  Trying to get 3x kits, so may have 6 hashboards.  We shall see - PM me.

Nice review. I have some S5s with dead Hash boards if you want them for kit work. Can send a big box.