ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH

[carlosmnk]

[Tupsu]

Use 50% or 40%  3,240 rpm

Everyone's RPMs seem to vary quite a bit. My 40% is significantly slower than that.

Some miners to compare your "Bitmain standard miner".

2,520  2,640  30%

3,120  3,120  40%
3,240  3,120
3,120  3,120
3,120  3,120
3,120  3,120
3,240  3,120
3,120  3,120
3,120  3,240
3,240  3,120
3,120  3,120 
3,120  3,120
3,120  3,120
3,240  3,120
3,240  3,120
3,240  3,120

Dual S7 miners
3,240  3,120  3,120  3,120
3,240  3,120  3,120  3,120
3,120  3,000  3,120  3,120
3,120  3,120  3,120  3,120
3,120  3,120  3,120  3,120

[bitdevill95]

Anyone experience a issue where changing the pool information is not saving?

Have you logged into that device with SSH at any point?  IIRC making changes to the config manually (via the shell) could make the web interface not save changes.  Let us know if that's something you've done.

Also, I've found with previous units that simply pressing "return" (enter) on your keyboard does not "save" the pool settings.  With previous units, I actually had to click "save & apply" in the bottom right hand corner of the miner configuration.  This may have changed with the S7.  I'm not certain of that.

Didn't SSH in, and definitely hit the save and apply (in an increasingly frustrating fashion)  - it refreshes, but defaults right back the original antpool setting.

Thanks for the tips though (usually is something simple that I forget).

Sent an email to Bitmain, will see if they have any insight.

[wolfen]

Anyone experience a issue where changing the pool information is not saving?

Have you logged into that device with SSH at any point?  IIRC making changes to the config manually (via the shell) could make the web interface not save changes.  Let us know if that's something you've done.

Also, I've found with previous units that simply pressing "return" (enter) on your keyboard does not "save" the pool settings.  With previous units, I actually had to click "save & apply" in the bottom right hand corner of the miner configuration.  This may have changed with the S7.  I'm not certain of that.

Didn't SSH in, and definitely hit the save and apply (in an increasingly frustrating fashion)  - it refreshes, but defaults right back the original antpool setting.

Thanks for the tips though (usually is something simple that I forget).

Sent an email to Bitmain, will see if they have any insight.

Are you using the October 23 firmware?
Acting like the conf file is read only .

[bitdevill95]

Anyone experience a issue where changing the pool information is not saving?

Have you logged into that device with SSH at any point?  IIRC making changes to the config manually (via the shell) could make the web interface not save changes.  Let us know if that's something you've done.

Also, I've found with previous units that simply pressing "return" (enter) on your keyboard does not "save" the pool settings.  With previous units, I actually had to click "save & apply" in the bottom right hand corner of the miner configuration.  This may have changed with the S7.  I'm not certain of that.

Didn't SSH in, and definitely hit the save and apply (in an increasingly frustrating fashion)  - it refreshes, but defaults right back the original antpool setting.

Thanks for the tips though (usually is something simple that I forget).

Sent an email to Bitmain, will see if they have any insight.

Are you using the October 23 firmware?
Acting like the conf file is read only .

Downloaded an upgraded (600.tar) - same results.

Several reboots.

[altcointalk14]

Is there any way (in the software) to determine the voltage being supplied to the hashing boards?  

[philipma1957]

Is there any way (in the software) to determine the voltage being supplied to the hashing boards?  

good question don't know.  I use a dmm   and test all 9 pcie jacks.

I would think if it was in software you would get 1 reading for each blade.

that is okay if your hash rate is good and all 9 jacks are giving 11.9 or more volts.

I have found that testing each pci jack while every jack is under load is the only way to be sure you don't have a psu issue.

[RichBC]

Is there any way (in the software) to determine the voltage being supplied to the hashing boards?  

It's a nice idea but unfortunately not. It would need some additional hardware and then software support for that.

Rich

[jermwerty]

Is there any way (in the software) to determine the voltage being supplied to the hashing boards?  

good question don't know.  I use a dmm   and test all 9 pcie jacks.

I would think if it was in software you would get 1 reading for each blade.

that is okay if your hash rate is good and all 9 jacks are giving 11.9 or more volts.

I have found that testing each pci jack while every jack is under load is the only way to be sure you don't have a psu issue.

Really test every PCIE Jack?  On a single-rail PSU I would think as long as all the connections are solid you should see the same voltage on all. 

Now if you are using a multi-rail PSU, then yeah you have to test every lead.  But then again if it were me I'd toss a multi-rail PSU anyway as I played that game back in the GPU days and load-balancing was no fun when you are mixing/matching rails.  Manufacturers often hide the rail configurations so you are left guessing, and normally dedicate one rail to the mobo connector so that becomes worthless!

Long story short:  I love my 1300W 108A@12V PSUs.  Worth every penny!

[altcointalk14]

I have some batch 3, none have 24hr average over 4.86, most are in the 4.7 range and a couple are 4.60  24 hr average.

Troubleshooting I was thinking about starting to check input power level. 

Anything else?

[pj40]

Just curious, is anyone biting on batch 6 or are you waiting to see if batch 7 is any improvement.  I would hate to submit and buy a batch 6 and then see batch 7 with 4.86TH again...

[pj40]

Holy crap, you're running that pretty hot.  My temps never get over 60C.

[wolfen]

Just curious, is anyone biting on batch 6 or are you waiting to see if batch 7 is any improvement.  I would hate to submit and buy a batch 6 and then see batch 7 with 4.86TH again...

Would buy a batch 6 if I had any funds left.
It's just a bit slower and probably pretty stable.
You would have no problem selling a batch 6.
Plus I'm out of power on my racks.

[pj40]

Just curious, is anyone biting on batch 6 or are you waiting to see if batch 7 is any improvement.  I would hate to submit and buy a batch 6 and then see batch 7 with 4.86TH again...

Would buy a batch 6 if I had any funds left.
It's just a bit slower and probably pretty stable.
You would have no problem selling a batch 6.

Yea, you're probably right, as soon as I get my 4 btc mined back up I'll probably blow it and replace my older miners with it.

[wolfen]

Holy crap, you're running that pretty hot.  My temps never get over 60C.

I only hit 60c when one of my fans punted.
It's like the fan voltage is stuck low.
Fans are probably fine since they are both low.
Everything else looks good.
Maybe a new controller board would fix it.

[wolfen]

Just curious, is anyone biting on batch 6 or are you waiting to see if batch 7 is any improvement.  I would hate to submit and buy a batch 6 and then see batch 7 with 4.86TH again...

Would buy a batch 6 if I had any funds left.
It's just a bit slower and probably pretty stable.
You would have no problem selling a batch 6.

Yea, you're probably right, as soon as I get my 4 btc mined back up I'll probably blow it and replace my older miners with it.

Older miners going for a fortune on eBay.
Wanted to get a pair of s3's to warm my garage this winter but too expensive, can't justify price.
Have a pair in my basement.
They are my museum miners.
Have a 7970 graphics card, gridseed orb, gridseed blade, s3,s3+,dead s5 in the museum.
Figured I would keep one of each.
Never did s1,s2,s4. Went straight from gridseed blade to s3.

[wolfen]

I just checked my hashrates one s7 was down to 4.5
Just hit save and apply on configuration page without changing text to restart cgminer and it is back up to 4.8
Nicer to restart cgminer than to reboot.

[pj40]

Just curious, is anyone biting on batch 6 or are you waiting to see if batch 7 is any improvement.  I would hate to submit and buy a batch 6 and then see batch 7 with 4.86TH again...

Would buy a batch 6 if I had any funds left.
It's just a bit slower and probably pretty stable.
You would have no problem selling a batch 6.

Yea, you're probably right, as soon as I get my 4 btc mined back up I'll probably blow it and replace my older miners with it.

Older miners going for a fortune on eBay.
Wanted to get a pair of s3's to warm my garage this winter but too expensive, can't justify price.
Have a pair in my basement.
They are my museum miners.
Have a 7970 graphics card, gridseed orb, gridseed blade, s3,s3+,dead s5 in the museum.
Figured I would keep one of each.
Never did s1,s2,s4. Went straight from gridseed blade to s3.

Ah, I have my failed upgraded S1 sitting on the floor in my office...I must've screwed something up when trying to upgrade the hash boards on it and it never really fired up properly so it's just a door stop now.  Ever other device I've had, I've sold off...8 S3's all through ebay, 3 S5's on ebay...never had a desire to hold onto the stuff since it's part of my ROI.  Heck, my S5's I had for almost 9 months and still sold them for $360 each which isn't too bad.

And once I get my second S7, I'll sell off my last S5 and S1 that I upgraded and OC'd to 500 GH which is a little powerhouse, never had a problem with that guy.  But the efficiency of the S7's is something I cannot pass up.  Then we'll see what happens this summer.  Hopefully I'll be able to keep rolling with the halving.

[pj40]

I just checked my hashrates one s7 was down to 4.5
Just hit save and apply on configuration page without changing text to restart cgminer and it is back up to 4.8
Nicer to restart cgminer than to reboot.

I rarely look at my S7.  It's not going to be constantly hashing at 4.86, I know that, sometimes it goes up, sometimes it drops.  I think people put way too much emphasis on a constant hashing speed when it is always grabbing new shares at different difficulties.  I guess if I set the min diff it would be different, but that's the whole point of stratum and I'll let it work the way it was designed.

[philipma1957]

I just checked my hashrates one s7 was down to 4.5
Just hit save and apply on configuration page without changing text to restart cgminer and it is back up to 4.8
Nicer to restart cgminer than to reboot.

I rarely look at my S7.  It's not going to be constantly hashing at 4.86, I know that, sometimes it goes up, sometimes it drops.  I think people put way too much emphasis on a constant hashing speed when it is always grabbing new shares at different difficulties.  I guess if I set the min diff it would be different, but that's the whole point of stratum and I'll let it work the way it was designed.

your power supplies are critical for it to maintain hashrates

the one below uses an evga 1600 t2

with 240 volts

http://www.newegg.com/Product/Product.aspx?Item=9SIA24G31E0501&cm_re=evga_1600-_-17-438-041-_-Product
results are better then the s-7 is rated