ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 6.

Biodom

legendary

Activity: 3892

Merit: 4331

Quote from: aarons6 on June 05, 2016, 12:19:59 PM

some reason when i lose internet, when it comes back online.. my s7 does not.. Sad

the green lights are flashing like its still mining, and the air is coming out HOT.. but nope..

unfortunately it happens pretty often.

i wish you guys would test your stuff and fix it.. its been awhile. and now these are EOL.. still no fixes..

they are faking it Wink

On a more serious note, can you see it in a browser? does it require soft or hard reboot?
In any case, check which firmware it is on. Typically, i don't do firmware upgrades, but I had two just like this, which were on Oct firmware.
Updating to December one fixed the problem. Those which were on September firmware did not have the problem, so I let them be.

aarons6

legendary

Activity: 1736

Merit: 1006

some reason when i lose internet, when it comes back online.. my s7 does not.. Sad

the green lights are flashing like its still mining, and the air is coming out HOT.. but nope..

unfortunately it happens pretty often.

i wish you guys would test your stuff and fix it.. its been awhile. and now these are EOL.. still no fixes..

Biodom

legendary

Activity: 3892

Merit: 4331

Quote from: dmwardjr on June 03, 2016, 08:05:54 PM

Yep, As I thought, New S 9 is out!

14.0 TH's with 1375 watts at the wall +/- 7%

$2,100 USD + shipping and possible VAT for some.

It is the same first batch as before, for the same price, slightly less btc, naturally.
It was greyed out for a few days, now it is back. Probably the few ones where payment did not go through.

aaaaaaand, it's gone (again)

dmwardjr

legendary

Activity: 1302

Merit: 1318

Technical Analyst/Trader

Yep, As I thought, New S 9 is out!

14.0 TH's with 1375 watts at the wall +/- 7%

$2,100 USD + shipping and possible VAT for some.

dmwardjr

legendary

Activity: 1302

Merit: 1318

Technical Analyst/Trader

Quote from: _kai_ on June 02, 2016, 10:16:23 PM

Quote from: dmwardjr on June 02, 2016, 09:31:48 PM

Has bitmaintech.com been non-accessible for anyone else? If so, for how long?

Been working for me the few times I looked at it today.

HTTP 503 ERROR for me.

HerbPean

legendary

Activity: 1638

Merit: 1005

Quote from: polymer_city on June 03, 2016, 04:58:10 AM

I have just received 3 S7's, and I think one has a faulty hash board?

If one particular blade is left plugged in, once it gets to full speed (60-90 seconds) it turns my PSU off.. (even with different PSU's)

All machines are using 2 x Artesyn 7001138-Y000 24R2730 PSU. 835w each.

I have checked with a multimeter and the faultly blade is getting exactly 12V on each plug, on each pin.

Is this a faultly board or is frequency too high?

Yes I have tried different PSU with this machine.

Any help?

Let's assume your feeding two blades with one PSU. (Never plug 2 PSU on the same blade)

1400 / 3 = 466W per blade ... that is over 900W on a 835w PSU. (Consider a bit less per blade since you have to feed the controller and his fan)

That's your problem.

polymer_city

member

Activity: 98

Merit: 10

Quote from: polymer_city on June 03, 2016, 04:58:10 AM

I have just received 3 S7's, and I think one has a faulty hash board?

If one particular blade is left plugged in, once it gets to full speed (60-90 seconds) it turns my PSU off.. (even with different PSU's)

All machines are using 2 x Artesyn 7001138-Y000 24R2730 PSU. 835w each.

I have checked with a multimeter and the faultly blade is getting exactly 12V on each plug, on each pin.

Is this a faultly board or is frequency too high?

Yes I have tried different PSU with this machine.

Any help?

Setting freq to 650 seems to have done it.

polymer_city

member

Activity: 98

Merit: 10

I have just received 3 S7's, and I think one has a faulty hash board?

If one particular blade is left plugged in, once it gets to full speed (60-90 seconds) it turns my PSU off.. (even with different PSU's)

All machines are using 2 x Artesyn 7001138-Y000 24R2730 PSU. 835w each.

I have checked with a multimeter and the faultly blade is getting exactly 12V on each plug, on each pin.

Is this a faultly board or is frequency too high?

Yes I have tried different PSU with this machine.

Any help?

_kai_

newbie

Activity: 23

Merit: 0

Quote from: _kai_ on June 02, 2016, 08:00:51 PM

https://cdn.pbrd.co/images/1oxDcIe6.jpg

Chain 2 and 3 are back with 30 o's each, but not hashing. (500 freq). Fun stuff! Grin

MyRig

donator

Activity: 792

Merit: 510

[email protected]

You may have the damaged hash PCB. these 54-chip model are VERY SPECIFIC to the default frequency set by the factory. It may hash at rate over 600Mhz, but you will risk of loosing your hash PCB soon or later. Running for 6-7 months at over clocked condition with 1200W psu, i think you got a good run out of this S7.

DPS1200W may be able to power on earlier batch of S7 at the spec frequency but may be a bit pushing the PSU to the limit. If you think its the PSU, as these server PSU do degrade time to time, you can try frequency at 575mhz and another DPS1200 to see if it can come to life.

If not, hash pcb is more than likely damaged. There may be a chance of repair if you do not see any visible burnt mark or peeled off layers.

Quote from: _kai_ on June 02, 2016, 08:00:51 PM

Quote from: HerbPean on June 02, 2016, 10:18:45 AM

What's the current % of HW in the UI ?

The unit is trying to hash but you are getting Hardware Error.

You need to give us more information. It is still hashsing ? Not at all ? HW % ?

Sorry, it's hosted and it was 3am, had to wait for more info.

First off, cgminer wouldn't even start, (no hashing) was spitting out all that info in the shell, and not doing anything.

He tried the blades separately, and eventually got it hashing - on one blade. The other two are sitting there doing nothing now, but at least it's doing something..

_kai_

newbie

Activity: 23

Merit: 0

Quote from: dmwardjr on June 02, 2016, 09:31:48 PM

Has bitmaintech.com been non-accessible for anyone else? If so, for how long?

Been working for me the few times I looked at it today.

dmwardjr

legendary

Activity: 1302

Merit: 1318

Technical Analyst/Trader

Has bitmaintech.com been non-accessible for anyone else? If so, for how long?

jtoomim

hero member

Activity: 818

Merit: 1006

Quote from: _kai_ on June 02, 2016, 08:00:51 PM

I'm the one who took this screenshot and is responsible for the hosting of _kai_'s machine.

Just so you know, the cgminer output paste was from a different boot of this machine. During that boot, it appeared that cgminer wasn't starting automatically, and the stats screen just showed 0s on the top line (hashrate, elapsed, etc.) and blanks everywhere else (pool info, ASIC status, fan speed). Because of this, I decided to SSH in and start it from the command line to get more debugging information. At the same time, I unplugged two hashboards, in the hope that the remaining hashboard (the bottom one according to both the screenshot and the physical position in the rig) would work. I then saw all of this HW error stuff in the log output. Later on, I switched hashboards and got it to run again with only the top hashboard. I then plugged in all three hashboards again, and got the attached screenshot.

The PSU is a server-grade DPS1200FB running on 240V, and supplies an open-circuit voltage of 12.30 V, and at full load usually gives around 12.15 V. I have not yet seen a DPS1200FB shut down from overload on an S7, and the problem does not go away if I power only one hashboard at a time, so I am inclined to think that the PSU wimping out is an unlikely explanation. Individual chips burning out from mild overvoltage or transient spikes is more plausible, but I think still unlikely.

Intake air temperature was below 20°C at the time of the fault. The rig crashed at 1:25am local time. None of our cooling system was experiencing a failure at the time that the rig crashed. Both fans on the rig appear to be functional.

_kai_

newbie

Activity: 23

Merit: 0

Quote from: philipma1957 on June 02, 2016, 08:18:53 PM

Okay the freq is set to 612.
The error rates suck.

So bad psu
Or freq is set too high.
So try setting freq to 575 see what you get.

That board shows 54 chips.

My guess is you have an older batch 1-7 model

They do not clock higher then 637. And need a hot psu to do that.

So at 612 the psu may be lacking the testicles to provide the power you need.

Go with some lower clocks

575 even as low as 525 to see if the gear fires up

Thanks Philipma, it was running at that freq rate ok up until yesterday (since Nov last year or thereabouts?), but things change, will get him to fiddle some more when he has time. Shocked

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Okay the freq is set to 612.
The error rates suck.

So bad psu
Or freq is set too high.
So try setting freq to 575 see what you get.

That board shows 54 chips.

My guess is you have an older batch 1-7 model

They do not clock higher then 637. And need a hot psu to do that.

So at 612 the psu may be lacking the testicles to provide the power you need.

Go with some lower clocks

575 even as low as 525 to see if the gear fires up

_kai_

newbie

Activity: 23

Merit: 0

Quote from: HerbPean on June 02, 2016, 10:18:45 AM

What's the current % of HW in the UI ?

The unit is trying to hash but you are getting Hardware Error.

You need to give us more information. It is still hashsing ? Not at all ? HW % ?

Sorry, it's hosted and it was 3am, had to wait for more info.

First off, cgminer wouldn't even start, (no hashing) was spitting out all that info in the shell, and not doing anything.

He tried the blades separately, and eventually got it hashing - on one blade. The other two are sitting there doing nothing now, but at least it's doing something..

https://cdn.pbrd.co/images/1oxDcIe6.jpg

HerbPean

legendary

Activity: 1638

Merit: 1005

Quote from: _kai_ on June 02, 2016, 06:16:59 AM

Don't suppose anyone's got any words of wisdom on what's going on here... just started tonight...
I did search and I found nothing similar... which is worrying considering this is bitmain equipment! Tongue

Quote

[2016-06-02 08:59:47] BTM0: No matching work - HW error
[2016-06-02 08:59:47] BTM0: invalid nonce - HW error

What's the current % of HW in the UI ?

The unit is trying to hash but you are getting Hardware Error.

You need to give us more information. It is still hashsing ? Not at all ? HW % ?

_kai_

newbie

Activity: 23

Merit: 0

Don't suppose anyone's got any words of wisdom on what's going on here... just started tonight...
I did search and I found nothing similar... which is worrying considering this is bitmain equipment! Tongue

Quote

root@antMiner:/config# freq_value=0782
root@antMiner:/config# chip_value=200
root@antMiner:/config# chip_num=54
root@antMiner:/config# freq_m=$(($chip_value * 1000))
root@antMiner:/config# timeout=$((2 ** (32 - Cool

* (256 / $chip_num) / freq_m / 64))
root@antMiner:/config# PARAMS="--bitmain-dev /dev/bitmain-asic --bitmain-options 115200:32:8:$timeout:$chip_value:$freq_value:0725 --bitmain-checkn2diff --bitmain-hwerror --version-file /usr/bin/compile_time --queue 8192"
root@antMiner:/config# echo $PARAMS
--bitmain-dev /dev/bitmain-asic --bitmain-options 115200:32:8:5:200:0782:0725 --bitmain-checkn2diff --bitmain-hwerror --version-file /usr/bin/compile_time --queue 8192
root@antMiner:/config# screen -list
No Sockets found in /tmp/screens/S-root.

root@antMiner:/config# start-stop-daemon -b -S -x screen -- -S cgminer -t cgminer -m -d "$DAEMON" $PARAMS --api-listen --default-config /config/cgminer.conf
root@antMiner:/config# screen -list
No Sockets found in /tmp/screens/S-root.

root@antMiner:/config# cgminer $PARAMS -D --api-listen --default-config /config/cgminer.conf 2>&1 | tee log
[2016-06-02 08:58:19] Global quota greatest common denominator set to 1
[2016-06-02 08:58:19] Global quota greatest common denominator set to 1
[2016-06-02 08:58:19] Global quota greatest common denominator set to 1
[2016-06-02 08:58:19] Miner compile time: Fri Oct 23 16:21:24 CST 2015 type: Antminer S7
[2016-06-02 08:58:19] Global quota greatest common denominator set to 1
[2016-06-02 08:58:19] Global quota greatest common denominator set to 1
[2016-06-02 08:58:19] Global quota greatest common denominator set to 1
[2016-06-02 08:58:19] Miner compile time: Fri Oct 23 16:21:24 CST 2015 type: Antminer S7
[2016-06-02 08:58:19] Started cgminer 4.8.0
[2016-06-02 08:59:47] BTM get work queued number:9 neednum:64
[2016-06-02 08:59:47] BTM: No enough work to send, queue num=10
[2016-06-02 08:59:47] BTM0: No matching work - HW error
[2016-06-02 08:59:47] Generated target 0000000000000000000000000000000000000000
0000000000ffff0000000000
[2016-06-02 08:59:47] Generated stratum work
[2016-06-02 08:59:47] BTM: Work task queued(9) fifo space(16320) needsend(64)
[2016-06-02 08:59:47] Pushing work from pool 0 to hash queue
[2016-06-02 08:59:47] BTM get work queued number:9 neednum:64 [2016-06-02 08:59:47] BTM0: invalid nonce - HW error
[2016-06-02 08:59:47] BTM: No enough work to send, queue num=10
[2016-06-02 08:59:47] BTM0: No matching work - HW error
[2016-06-02 08:59:47] BTM0: invalid nonce - HW error [2016-06-02 08:59:47] Popping work from get queue to get work
[2016-06-02 08:59:47] Selecting pool 0 for work
[2016-06-02 08:59:47] Generated stratum merkle 6a4d11683399ff4c147da1f9e0e2bdb9726602b56188e304919e1ed8a456d276
[2016-06-02 08:59:47] Generated stratum header 00000004db927871dc96870990749d35eb81bcaf08775be60367cb1d00000000000000006a4d116 83399ff4c147da1f9e0e2bdb9726602b56188e304919e1ed8a456d276574ff57818058436000000 000000008000000000000000000000000000000000
000000000000000000000000
[2016-06-02 08:59:47] Pushing work from pool 0 to hash queue
[2016-06-02 08:59:47] BTM0: No matching work - HW error
[2016-06-02 08:59:47] BTM0: invalid nonce - HW error

Unacceptable

legendary

Activity: 2212

Merit: 1001