Antminer S1 Questions

[pixskull]

Alright so I know there is a TON of information out there, but nothing easily specific to my question.  I have two antminer S1's and two Dell Server Power supplies 750w.  I'm trying to limit the amount of power going to these two obviously to keep my cost down and yet get full potential before they are worthless.....

So with that being said.  What would you guys do?  Would you overclock both?  If so if you could give me some information on the easiest way to do that thru Windows 7, connected directly to the router.

Or are two of these units able to be used on one 750w power supply?  And if so, would y'all keep the two supplies not overclocked and have them both on one power supply, or overclock both and keep them on seperate ones?

Thanks for the help!

[jonnybravo0311]

Alright so I know there is a TON of information out there, but nothing easily specific to my question.  I have two antminer S1's and two Dell Server Power supplies 750w.  I'm trying to limit the amount of power going to these two obviously to keep my cost down and yet get full potential before they are worthless.....

So with that being said.  What would you guys do?  Would you overclock both?  If so if you could give me some information on the easiest way to do that thru Windows 7, connected directly to the router.

Or are two of these units able to be used on one 750w power supply?  And if so, would y'all keep the two supplies not overclocked and have them both on one power supply, or overclock both and keep them on seperate ones?

Thanks for the help!

The answers to your questions are all over the hardware and mining support forums.  Here is a brief summary:

1) Limiting power - you can under clock and under volt.  Look for "pencil mod" to get details on how to do it.
2) To over clock, you just edit the asic-freq file on the miner.  Look for "over clocking Antminer S1".
3) At stock speeds, you can run both S1s on the single Dell PSU.  Under clocked and under volted, not a problem.  Over clocked, no.  Since you have 2, just hook each S1 up to its own PSU.

Personally, I still run my S1s overclocked, and I'm probably in the minority at this point.  Why?  Well, they've both ROI'd in BTC, so everything I'm mining now is profit, so why not make the most of it?  I run them both off a single Corsair HX1050.  Now, chances are I'm going to sell them and replace them with newer gear, but while they're mining, they're still overclocked.

[pixskull]

Alright so I know there is a TON of information out there, but nothing easily specific to my question.  I have two antminer S1's and two Dell Server Power supplies 750w.  I'm trying to limit the amount of power going to these two obviously to keep my cost down and yet get full potential before they are worthless.....

So with that being said.  What would you guys do?  Would you overclock both?  If so if you could give me some information on the easiest way to do that thru Windows 7, connected directly to the router.

Or are two of these units able to be used on one 750w power supply?  And if so, would y'all keep the two supplies not overclocked and have them both on one power supply, or overclock both and keep them on seperate ones?

Thanks for the help!

The answers to your questions are all over the hardware and mining support forums.  Here is a brief summary:

1) Limiting power - you can under clock and under volt.  Look for "pencil mod" to get details on how to do it.
2) To over clock, you just edit the asic-freq file on the miner.  Look for "over clocking Antminer S1".
3) At stock speeds, you can run both S1s on the single Dell PSU.  Under clocked and under volted, not a problem.  Over clocked, no.  Since you have 2, just hook each S1 up to its own PSU.

Personally, I still run my S1s overclocked, and I'm probably in the minority at this point.  Why?  Well, they've both ROI'd in BTC, so everything I'm mining now is profit, so why not make the most of it?  I run them both off a single Corsair HX1050.  Now, chances are I'm going to sell them and replace them with newer gear, but while they're mining, they're still overclocked.

So you would keep them on two seperate supplies I have and overclock both?

[jonnybravo0311]

Alright so I know there is a TON of information out there, but nothing easily specific to my question.  I have two antminer S1's and two Dell Server Power supplies 750w.  I'm trying to limit the amount of power going to these two obviously to keep my cost down and yet get full potential before they are worthless.....

So with that being said.  What would you guys do?  Would you overclock both?  If so if you could give me some information on the easiest way to do that thru Windows 7, connected directly to the router.

Or are two of these units able to be used on one 750w power supply?  And if so, would y'all keep the two supplies not overclocked and have them both on one power supply, or overclock both and keep them on seperate ones?

Thanks for the help!

The answers to your questions are all over the hardware and mining support forums.  Here is a brief summary:

1) Limiting power - you can under clock and under volt.  Look for "pencil mod" to get details on how to do it.
2) To over clock, you just edit the asic-freq file on the miner.  Look for "over clocking Antminer S1".
3) At stock speeds, you can run both S1s on the single Dell PSU.  Under clocked and under volted, not a problem.  Over clocked, no.  Since you have 2, just hook each S1 up to its own PSU.

Personally, I still run my S1s overclocked, and I'm probably in the minority at this point.  Why?  Well, they've both ROI'd in BTC, so everything I'm mining now is profit, so why not make the most of it?  I run them both off a single Corsair HX1050.  Now, chances are I'm going to sell them and replace them with newer gear, but while they're mining, they're still overclocked.

So you would keep them on two seperate supplies I have and overclock both?

I do... but that's because they've already paid for themselves and my electricity cost is not too terrible.  Your situation might be different.  Also, like I said, I'm very likely in the minority with my opinion.  I've seen far more threads about under clocking and conserving power on the S1s recently than I have for over clocking the same

EDIT: Are you planning to grab some more mining gear (like an S3)?  If yes, then perhaps you should under clock your S1s so you can use that other PSU for the new gear.  Alternatively, you could under clock both S1s, run them on the single PSU and sell the other one.  Whatever makes sense for your situation, is what you should do.

EDIT2: I checked out your shop linked in your sig... pretty cool work.  You make that glassware yourself?

[philipma1957]

Alright so I know there is a TON of information out there, but nothing easily specific to my question.  I have two antminer S1's and two Dell Server Power supplies 750w.  I'm trying to limit the amount of power going to these two obviously to keep my cost down and yet get full potential before they are worthless.....

So with that being said.  What would you guys do?  Would you overclock both?  If so if you could give me some information on the easiest way to do that thru Windows 7, connected directly to the router.

Or are two of these units able to be used on one 750w power supply?  And if so, would y'all keep the two supplies not overclocked and have them both on one power supply, or overclock both and keep them on seperate ones?

Thanks for the help!

okay here goes         at the current diff of 17336  you overclock to 200gh and 400 watts each  your profit for a day is      if your power cost is :



10 cents a Kwatt  $5.16

15 cents a kwatt    $4.16 a day

20 cents a kwatt  $3.23  a day


If you pencil mod to 140gh and 180 watts

10 cents a kwatt  $4.10

15 cents a kwatt  $3.66

20 cents a kwatt  $3.23


So today at a diff of 17336   you should pencil mod    at 20 cents a kwatt or higher



At a diff of 19,336 = next jump

your numbers are


over clock
10 cents = $4.39
15 cents =  $3.43
20 cents =  $2.47


10 cents = $3.55
15 cents = $3.12
20 cents = $2.69

so at 20 cents the pencil mod is correct.

Also remember  the over clock = more noise + more heat



If I were you I would sell a psu and underclock with the pencil mod.

[alesx.onfire]

1 antminer : @360w - 30A - 12v at stock freq

[kgb2mining]

If you are using the typical Dell Z750 PSU, you can indeed run 2 overclocked S1's on one power supply.  Ours are running OC'd to 400Mhz stable (some even up to 418), 2 per PSU using the breakout boards.  The "blue wire" fan mod has also been done on them all, making the main fan run full speed at all times.  We're in a datacenter setting, so we have cooling and high quality power feeds however, so that might help.

[pixskull]

They are Dell Server Model N750-P, so one can handle two overclocked Antminers?!  What do I need to attach two of them to one server power supply?

And thanks for the breakdown on the payment, so when you say the pencil mod and 20 cents what am i looking for?  Thanks

[kgb2mining]

They are Dell Server Model N750-P, so one can handle two overclocked Antminers?!  What do I need to attach two of them to one server power supply?

You'll need a breakout board and cable kit from a place like gekkoscience.com or minersource.net.  Relatively cheap, and then you can cable like so in 10 minutes with some cable ties:

[pixskull]

Alright so just got another one here, hooking it up to a server power supply I had laying around that was Brand new. 

The 8 pin has the yellow wires on the clip side, so do those wind up being the negative?  So just so i'm straight, clip the plug and put the yellow wires into the ground, and black wires into the positive and just don't use the other 2 wires that are hanging.

And for the 4 pin, I have 2 blacks, a red and a yellow?  What do I do with those?

Thanks