One question that is related is how did iTop beat Bitmain to posting it to forums?  Did they release specs in China first and iTop took it to this board right away?

Was odd to see third party post it before bitmain.

It is a way of hopefully nicely getting a PM through.  I sent a few and did not hear back I know he is busy so I understad, and am not worried.  

But figured I would post as that chances are will get a PM back as I know he checks thread and will see it.  

And no post in this thread count which is nice as that is not counted as a post, so no issues there.

Thank you!  Down the road I do plan on playing with it more.  But with paper/email it really seems bitmain is getting harder on warranty.  So I'm going to ride out the warranty in default specs.

The one thing I am surprised just going over my notes is that they did not sell a 1 module unit.   Each module is 100 percent the same.  The only difference is one of the three had the controller put on it.  So they easily could have don't like a S5+ one module, or three module with no additional cost other then more controller boards.

I don't know if this is true a lot will upgrade to new efficient gear eventually.  So you would still compete with others with same disadvantage of high electricity prices.

What will happen is old gear gets sold to miners in cheaper electricity areas.  So most stay's on network.    I would be surprised if even a new chip allows high electrical places to ROI.  But I hope I'm wrong on that.

I would not swap all the cables yet.  I would just make sure snug at this point.   

But yes searching for image and trying others is a good  idea.  Make sure to look for 5 blade images if possible (they are hard to find at this point)

Are you able to ask previous owner about it?  We really don't know a lot of it's history with it being 5 blade it has been ran some time.   

I would ask previous owner what problems he had.  If he says none ask where it was ran at if a cheap data center or home or doubtful if just sold a good data center.

If you have a PSU tester you might check it.  I know they were nothing special and a lot broke after time.


Also do you have SD card with old image or happen to back it up before flashing new image?

I would agree it will be pretty close.  They never had the avalon/sp gear adjustment on over/under clock effecting efficiency in big chunks.

I do think it could be overclocked though and get even more hash.  I personally did not do it as I don't want to break my 90 day warranty.

Thank you for the kind words.  I enjoy tinkering with electronics and computers.  And really enjoy documenting and playing with miners.

Even with one miner down currently I'm hitting around 13.4K total between two areas.  Eventually I will part with some of them and sell a few miners, but I have not reached that point yet.   I am lucky that I live on a true farm (like crop and cattle) and power company is use to seeing jumps.   

Went out and checked it is a mild day around 80 F.   The S5+ is still doing a much better job getting rid of heat then the regular S5.  So I'm calling it a sucess on dealing with heat compared to regular S5 since it has ran for around 20 hours at this point.  As far as noise my mining area is very noisy so not a issue for me.  But it is loud enough you would not want to put it in an area you want quiet.

I can tell it's pulling 15 amps worth of electricity from my PDU which put's it around spec area.   My standard kill-a-watt does not have the same plug as I used on the 240.   So cant use it.

I'm hoping in next couple of day's I can try to get PDU's networking to work and hopefully it tells a little more details.  But again it was second hand through ebay and I'm not sure the network plug works on it the PDU from initial test.

I have around 11k watts running in new mining area after this.  And a tad in old area.    But this miner will use every bit of the power the say on specs.  Bitmain say's you need 16 amp to run miner and I would agree with this.  You could do it from two 110's but I went with 240 volt 30 amp which I am very happy with currently.   Needless to say I think my electricity company loves me.

Are you sorry that you did it?  Or sorry you got caught?

I am really surprised doing this did not ruin your feedback with trying to manipulate it.  Maybe people are hitting negative less or something.  But surprising.

Macro PM sent to you a minute ago.

Please reply once you get time. 

Thanks.

As a guess I would assume it has a little bit of possibilities.  But Bitmain gear really always shinned on the amount of overclocking you could do vs the underclock.

I am also still working with my PDU.    I'm hoping to get the networking working on it where I can monitor stats easy on watts used, but it is second hand gear so I'm not even sure network port works.

It is not easy to "hack" a bitcoin wallet " also blockchain you watch an wallet address then you crack the private key then" is kinda not even in realm of what happens.  I'm guessing you are thinking of like a CSI tv show clicking one button and a bunch of text scrolls ..... then cracked private key!

It could not be further from the truth.  The chances of getting a private key from brute force is so so very very tiny.  It just does not happen.   What happens is you get a virus/malware and then you are hacked.  It is the virus/malware and improper security settings on wallets that allow taking those coins.

Get a proper cold wallet, or hardware, or at least use 2 factor.  Hacking should not happen if done right on wallet security.

I have not.  It seems to be Bitmain is getting more strict on their warranty.   I decided I will wait the 90 day's most likely until I do.

Or if next gen comes out and I need to underclock.   

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Let us know what happens.

I would check to make sure all blades are plugged in snugly.  2 blades showing leads to possible other problems.   And are you sure it's 5 blade?   If so this has had a long life 5 blade 1T's were the first ones, they later went 4 blades.

I don't have the 2880 watt PSU.   So I cannot say on that one.  But on the Bitmain 1600 it is pretty small considering everything I'm sure it could be ziptied or fixed to something.   

Just with my current setup sitting on same shelf was my best option.  If i fixed it above it would be right under an S4.   With sitting beside for me they have a lot of room around the PSU.

No problem at all.  It is cgminer 4.8.0 from what mine showed.    I would guess it is their own version did not verify that part.

My extra PCIe cables could be straitened up and it would have a tad more looking clean to it.    One thing you have to remember is it is using a LOT of power in a small space.  3436 watts is a lot of power to be used in the footprint of about 3 S5's as far as area.

Also if you rigged it with PSU hanging above it would be much cleaner look.  I did not do this as I have miners on shelf above it I did not want to put it right under the other miners.   So I really went with functional vs trying to make look pretty.

It would have been a nice touch if the PSU's had a spot to sit but that was not design they went for.  These units are VERY compact and the connect three of them together with a small footprint.   

I am just happy they used metal and 2 fans on each.   With the way they have blades placed and very easy to get to each one you do need to put them somewhere else.  I personally went with the side of miner as it was so small.  But I'm sure a larger scale mine could perfect it more hanging it above the miner with some rigging.