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0) General information + Hardware Needed
1) Unpacking
2) The Miner
3) Install
4) How to order

0) General Information + Hardware Needed
This miner is an open air design that might remind some of the S1 Ant miner design at first glance.  It’s a compact little miner that still packs a punch with 28 MH of Scrypt mining power.  Between the two blades it has a total of 40 SF300K01 chips.  This miner is rated to run on about 440 watts.  

Hardware needed in addition to SilverFish 28MH miner.

• Standard power supply with 2 PCI-E 6 Pin adapters (suggest 500 watts or bigger)
• Computer to run SilverFish mining software
• Network cables - 1 network cable to go to your network, and other to link blades

1) Unpacking
I was very impressed with the packing.  I received mine within two boxes.  The miner was well insulated with styrofoam covering the miner as shown.  You can see it appears to have taken shipping to customer as a priority with amount of protection on miner


2) The Miner
Below are images to showcase the miner.  In comparison to showcase it’s size in one picture it’s beside the A2 30 MH miner.





3) Install
A)First off you will need a standard computer supply with 2 PCI-E 6 pin adapters, each blade uses one adapter. I suggest using a 500 watt power supply or more to save a headache as mine seemed to run in range of pretty steady right around 430 watts but could reach 450 occasionally.  I used the paperclip trick to get the power supply to run without a computer.  As always if you do this be careful with electricity.


B)Below shows how to connect your miner network cables.  Closest Ethernet slot to PCI-E adapter goes to network, outer Ethernet slot allows you to connect next blade:


C)With this miner you are provided with software to run on Windows that makes it very easy to control multiple SilverFish Miners. It very easy to install through provided official link: http://pan.baidu.com/s/1ntK9cql (http://pan.baidu.com/s/1ntK9cql)

Simply extract the following files into a folder on your computer, and open the application.  There is a Chinese and English version of the program.  The English version if followed by "_EN"


D)Once ran it will automatically find your miner on your network.  It’s as simple as that.  Below shows how it has found one SilverFish 28MH miner and within it the two blades:


E)Simply add a pool if not there by hitting operate then add pool.   Most likely it has one default one there simply right click on it to change the miner pool settings as shown below and click ok after:


4) How to order
Simply go over to the Lee group buy located at: https://bitcointalk.org/index.php?topic=514758.0
Shipping scheduled to start shipping on 6/15.

Thank you for looking at this guide.  Feel free to post question's.  My 2 bit disclaimer: Please be careful with electricity I can take no responsibility if you are hurt with equipment.  I also do not make the equipment and am not responsible for their products or your use of them.

Additional facts:

"Two or more SF-28M miners can link together with ethernet cable,thus you can run as much as 100 unit with only one computer"


If hashing speed seems low try these possible solutions:

For me personally I experienced more stability and speed with very cool air going through it.  Proper air-flow can effect your hashing rate and stability.  Cool air and not just air flow can make the difference if your unit seems to be un-stable.

Second would be to try the new firmware.  If your SilverFish miner on the performance (M) tab goes to 14 on both blades and stabilizes then most likely you are on the most current firmware.  If you are having good luck with older firmware I would not upgrade, but this new firmware can help unit's that were less stable on older firmware.

You can use these in combination together and that is also the third option.  Using both seems to help some.  

It does seem some blades can preform lower then others.  Some will work right out of box with no additional cooling needed or firmware updates.  Others will notice the above hopefully has had a positive impact on stability/speed.


Windows 1 Hour restarting batch file
This will restart the software at a one hour interval.  This might help some that have a significant drop after a few hours of running.  You can change the .exe file name below if batch file if you are using the English version or a different version of the software. Note you must edit the task killing .exe and start .exe both if you edit it to different version/language.
Steps

• Open up notepad
• Paste the following in notepad:
  
  Echo "Lee Group - Notlist3d - SFMinerR2.1 Hourly Restart"
  TaskKill /F /IM SFLMiner_r2.1.exe
  timeout /t 3
  start SFLMiner_r2.1.exe
  timeout /t 7200
  start restart.bat
  EXIT
  
  Or R3.04
  
  Echo "Notlist3d - SFMinerR3.04 Hourly Restart"
  TaskKill /F /IM SFLMiner_r3.04.exe
  timeout /t 3
  start SFLMiner_r3.04.exe
  timeout /t 7200
  start restart.bat
  EXIT
  
  
• Go to file save as then select any file as type and name it restart.bat in the same folder as your SilverFish mining software
• You are able to now run this by clicking it within the folder

Keep us updated on stability or any issues you encounter.

+1

nice evaluation, i had to say you have done an exclent job:)
just want to add one comment, two or more SF-28M miners can link together with ethernet cable,thus you can run as much as 100 unit with only one computer

The price of the sf-28M miner adjust to 1999$ now

I'm looking at buying 2 or 3 of them to add to alongside my GPU farm, so far this is the only review I have seen. I'm not convinced yet as there is no history of how stable they are or if they crash when mining on multi-pools,reboots, lockups, etc.

Hopefully will get a more comprehensive review with stats, uptime, etc...

Still using and reviewing unit.  Software is extremely impressive.  Was easiest install how it detected the miner automatically.  They have made it very easy for those who buy multiple unit's to change settings for all units in a matter of seconds, and only doing it once.

Will keep using and let everyone know more, as I believe this is first post of SF-28 showing in hand on this forum.

Id love to get my hands on a few of these

Looking forward to some more details about the product .

Contact Mr. Lee/PCFLI in group buy here https://bitcointalk.org/index.php?topic=514758.0  . There is discount's for multiple.  Should start shipping on 6/15 :).

Already Pm'ed him as usual :)

Glad to hear :) good to see you again.

Over the past few days I have been able to test the SilverFish 28 MH miner and have had a great experience so far with it.  It has a good combination of hardware and software features I have enjoyed.

First I will start off with the SilverFish 28 MH miner itself.  It’s something you will notice many great features that I think you fellow miners will like.

• Small Form Factor- These take very little space compared to other current scrypt miners in this speed of miners.
• Electricity- The SF-28 is rated for 440 Watts for 28 MH in comparison the Zeus Thunder 28-30 MH miner suggests a 1200 watt supply.  For ROI if your electricity is in your equation this will add up overtime, and allow you to remain profitable much longer running.
• Expandability- With two Ethernet ports they have designed the miner to be able to easily expandable.  You can start out with one cable going to network, and from there just link the miner’s together.  If you decide to buy multiple miners you will really like this feature.

Second a little bit about the software.  This is possibly one of the easiest installs of a miner, simply run the application on your computer and it will automatically find your miners and blades within them. 

• Setup Time- Upon opening the box it’s as easy as plugging miner or miners in, and clicking on a single application you are up and running in no time
• Expandability- The software is made where you change the pool once and it can change the setting’s for all of your SF miners within seconds.  No going to multiple IP’s or bulky or advanced software.  It’s simple and works great.
• Live Stats – You can use the SF application to monitor 1 or 100 miners the software put’s total hashing rate where you can look and see for your entire set of miners.  Quickly the ability to go deeper and see each miner’s hashing speed and then each blade if you want.

There is also a SF-70 if you want something bigger.  And the SF-70 is rated at 1100 watts still under one Zeus Thunder 28-30 MH recommended power supply!

To order simply go over to the Lee group buy located at: https://bitcointalk.org/index.php?topic=514758.0
Shipping scheduled to start shipping on 6/15.  Discount on order of multiple miners.

You will notice price drop in SF-28.  Also reminder there is discount if you order multiple discount rate is shown in starting post in group buy.  With expandability hoping that might save a few a little money :)

And you will now see SF-28 and SF-70 no longer have a future shipment date, and have moved to the < 48 hour shipment date from order.

As always happy mining!

I have 5 of these on order from PCFLI, great service as always. He showed me the performance over team viewer, exactly as advertised.

Glad to see thanks for choosing Lee Groups for your purchase. 

If anyone else want's specific pictures etc.  Please just let me know.  Happy to spread this miner.

Just got my 6 today, seems like they are all working, except that there is no english software file.

Lets see some pic dude

This video shows the SilverFish 28 miner from the Lee group buy.  It contains unboxing, overview, hardware setup, and software setup:

These are shipping out.  Currently in group buys shipment date is less than 48 hours from order in Lee Group Buy https://bitcointalk.org/index.php?topic=514758.0

Feel free to ask any questions about this miner.  Depending on interest level teamviewer/skype can be used to show device if enough interest from someone.

Updated 2nd post with troubleshooting for lower hashing blades.

Copied from Lee Group group buy thread:

updated on  26 Jun 2014
The price of the miners adjust, especially the  scrypt miner adjust a lot, please check the following form to see the detail.
https://docs.google.com/spreadsheets/d/1yrP7bd7tekW8XCp7EZ5BKAB5wAcnshdyGVfygQOspE8/edit#gid=416246852


You will notice in the thread the prices: https://bitcointalk.org/index.php?topic=514758.0

How noisy are these little guys (as compared to other miners)? I've run the gamut from block erupter, to G-blade, S1, S2, SP10 and avalon so looking for an equivalent in the world of noise making before I buy.

Next question, what size are those fans?

It uses two small fan's, I do not have exact size.  Manufacture does not list it and I don't have any so small that match.   With being two small fan's they do spin very fast and there is some noise.  The A2-30 is quieter by a decent amount for me. With a few miners and cooling in same room dedicated to mining to be honest sound is not a issue to me.  

Thanks for the quick answer.

Could I ask you to measure the distance between the center points of two of the fan screws? That will tell me what size the fan is.

Posted a SilverFish 1 Hour restarting batch file.  Hope it helps if anyone experiences problems with hash rate dropping after a few hours of running.

This quite simply restarts the SilverFish mining software once a hour, and hopefully will increase the hash rate per day for those who have dropping in hash rate after a few hours. It was released in second post as how to make it so you can build it yourself.  As for your safety no batch file will be posted to download, you create your own and are able to view what it does.

Revised batch file with a exit.

Can these be run off of a Raspberry Pi? And is there any support for BFGMiner or CGminer yet?

So far it has just been Windows.  I have set up a low wattage PC for it myself.

The software is designed as a windows .exe so far I have not seen any port to raspberry pi. 

I setup the SF28MH 2 days ago and I've had a great experience with the software (once I found the English download as my Chinese is not good enough apparently).  Sadly though the hardware hasn't lived up to the level of the software.  I haven't been able to keep the hardware running anywhere near the 28MH.  It will run at full speed for a short period of time, usually around 30 mins.  Then it start cutting out on one of the blades and usually will run around 13MH for awhile. 

I setup the reboot batch file to see if that helps but that doesn't really seem to solve the problem.  It will leave the occurrence of the miner open that was running about half speed and then open a 2nd occurrence of the miner that will sometimes pick up some hash rate.  Maybe I missed something in setting that batch file up but if it is going to start a new occurrence of the miner, shouldn't it close the old one?

Hopefully there are just some setting that can be tweaked to get this more stable but so far this doesn't come anywhere near being satisfactory.  It is very power efficient and the software is very user-friendly but it doesn't hash, it doesn't matter.  Compared to ZeusMiner Thunder, the ZM wins hands-down so far as at least it is running consistently at full speed and no down-time.  The ZM is way louder and way less power efficient than the SF but at least it hashes. 

If you have any suggested changes I can make to the settings, please let me know. I am running this with a Corsair 650TX PSU so it should have more than enough power and I don't see anything else that's wrong. 

One other note, the reject rate has been running in the 18-20% range even when it is hashing at full speed.

I think I found the issue I had in the batch file with the file continuing to add extra occurrences of the miner.  I edited it to change the non-english name to start the miner but didn't edit the kill option.  That should fix that and I'll see how things go from there.

the price of the SF miner adjust to 1999$ now, also with bulk order discount, you will get at most 150$ discount when place big order
also you can see the following link to see the detail price

https://docs.google.com/spreadsheets/d/1AR9WDipM4vpQoUA47wKV6eM4FNkEQk6HqoRzElH6N14/edit?usp=sharing
http://i60.tinypic.com/294qkbm.jpg
http://i62.tinypic.com/j8ma3d.jpg

That would be correct you will edit both kill and run.  If they release a new version it can be edited as-well.  I hope you find it useful on the batch file.  So far I've heard positive things about it so far.

You might try a different pool or look into difficulty.  This is very very high.  Even if hashing at full speed it should not be near that.

SilverFish has released new software and firmware (5th firmware).  Currently testing to see how it does.  Only thing I have noticed is the SilverFish software seems not have a English version yet.

Again will let you know what my results are.

Put a SFMinerR3.04 restart batch file up.  Again you make one from it, for your security I do not make batch files for download.

Still testing will let you know results more on new firmware and software after a little more testing.

So far the new software is looking promising, have been testing alongside with new firmware and 1 hour reset.

If your's is currently working good and consistent without upgrading I would say stay with your current setup.  But if you are not it's worth using.  Just keep in mind that it's using a Chinese program. Exact same spots as English on buttons so not hard to use if familiar with previous use of program.

Also you can downgrade firmware and use old software if it does not work.

*I have not heard of a single SilverFish having a problem with firmware or hurting it from it, but just putting a standard warning for all firmware.  If power goes out, problem from upgrading, etc during process I take no responsibility on upgrading firmware.

Bump for the fellow fish out there in the ocean of miner's.  Also check out new hosting price for a professionally hosted dragons at: https://bitcointalk.org/index.php?topic=514758.0

Also with later firmware and software the restart batch was not needed in my case.  With these fish it does seem to vary depending on cooling environment.

How to solo mine with this device?

Have any of you guys lost authorization with this miner.. just in the last couple days 2 /3 of mine have quit completely.. Also has anyone come up with software other than SF miner that will run these beasts!!
Best Regards
d57heinz

Anyway to use raspberry with them?

I don't know I was wondering the same thing just bought a SF28 on eBay for $138.50, just wondering if people still use them and if they have any issues that can be fixed or any tweaks to help the run better. Also what kind of power supply is the best and what type of power connectors plugs fit the FS28 just won auction today and need to get a power supply.

http://cryptomining-blog.com/3059-download-the-sfminer-2-1-english-software-for-silver-fish-scrypt-asic-miners/  check out this site for the software.. norton says its dangerous but thats inherent in crypto files.. They all seem to set off flags..  anyway once you get the software you need to check out this guide for setting it up... its seems well put together.. https://bitcointalk.org/index.php?topic=650608.0

i could walk you thru this but i find its more rewarding when you figure it out yourself:) plus you really need to know whats going on in case you have issues..  if you get stumped hit me up..

Best Regards
d57heinz

Also i hope that the miner has been reinitialized or else it wont work.. Thats something that was done about a year ago now.. see this post.  https://archive.litecointalk.org/index.php?topic=24884.0

Please keep in mind this guide is dated at this point (around 2 years old).   To be able to run it you will need to search about authorization fix.  When I owned one it did not have to do this.

Before purchasing one of these make sure to get current info.  I honestly was suprised to see this bumped up, I did not think many would still be buying this miner

same here i had this thread set to notify.. was like hmmm..   Be something good for him to get his feet wet.. but if its not authorized he is screwed.. and im not sure that there is anyone left to do it.. I can look back and see but the guy that did mine no longer has a qq chat.. so it appears he setup just for this..

Oh well, I can put it in a time capsule with a million Dogecoin I guess I will go ahead and build that GPU mining rig which I was going to do in the first place. KEEP ON MINING 24/7 !!!! Peace Out .. :-[

The authorization fix was kinda a eye opening experience.  The worst thing I had with this miner was the longer it ran it seemed to drop in hashrate.  It luckily was something easy to fix with a old school batch file.

I have not kept current on authorization fix.  But anyone else reading this thread make sure you can fix this before buying one or that they have a fix when selling to you.  If not you have a paperweight.  And there may be some great way to get it done now, I just again have not kept current with it and when I owned it there was no issues about it back then.

Actually, I bought my SilverFish from  itopcorp on eBay they said it was tested and worked and had the update (  Latest firmware(06version) Download:http://www.itop-corp.com/asset/file/file/20150313/20150313194758_14233.rar ) and the timer was locked. They also have a website http://www.itop-corp.com/  :)