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1  Bitcoin / Hardware / Re: ANTMINER S5: 1155GH(+OverClock Potential), In Stock $0.319/GH & 0.51W/GH on: July 21, 2016, 03:36:38 AM
Yeah I have no idea whats going on. I just attained another S5 and that upgraded instantly, tried this one again and same BS. course this new one is shot, Temp sits at 0 and it wont mine.
 cant get the  fan control firemware on so swapped fans to an S1 fan and corsair fan. much quieter...

yeah thats what I am doing...
  with firefox hitting ok, just says sending request which is the request to send the file but just times out
with chrome and IE when that starts the S5 stops mining as if it now knows a firmware update is coming but times out.
firefox that never happens.

 very odd, never had something like this happen before, annoying cuz I want that newer manual fan control firmware installed.


Normally if you have a time out during a firmware flash it can be bad news... you really don't want to lose power, timeout, etc.  It can lead to a brick in some cases.   Not all but some will be bricked.

Honestly if it is giving you those issues I would leave it.   S5 miner's are really not quiet.   As far as comment above you should easily know if S5+ it is marked on it and has 3 of them.   I only had one of the S5+ but it was also a great miner.   But I think he is talking about a regular S5 from what I'm reading.
2  Bitcoin / Hardware / Re: ANTMINER S5: 1155GH(+OverClock Potential), In Stock $0.319/GH & 0.51W/GH on: July 15, 2016, 06:37:03 PM
I wonder maybe this is an S5+?
do S5+ call themselves that in the Miner Type system overview?
this says

Miner Type   Antminer S5
Kernel Version   Linux 3.8.13 #22 SMP Tue Dec 2 15:26:11 CST 2014
3  Bitcoin / Hardware / Re: ANTMINER S5: 1155GH(+OverClock Potential), In Stock $0.319/GH & 0.51W/GH on: July 15, 2016, 06:23:46 PM
yeah thats what I am doing...
  with firefox hitting ok, just says sending request which is the request to send the file but just times out
with chrome and IE when that starts the S5 stops mining as if it now knows a firmware update is coming but times out.
firefox that never happens.

 very odd, never had something like this happen before, annoying cuz I want that newer manual fan control firmware installed.


 
4  Bitcoin / Hardware / Re: ANTMINER S5: 1155GH(+OverClock Potential), In Stock $0.319/GH & 0.51W/GH on: July 15, 2016, 05:47:15 PM
Is there some known issue updating firmware on the S5?

I'm trying to get any of the 3 2015 ones at bitmain to install but it seems the S5 stops responding to the upload command.

Firefox times out after hitting OK to upload, IE also times out waiting for a reply back, Chrome seems to start the upload but sits at 0% and times out.
  So it seems to me the S5 is not answering back the initial upload command.
there are no network issues, I have tried it from a few different pc's and one plugged into the same switch.
5  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: July 14, 2016, 01:26:45 AM
Fan dynamics...

  I was thinking and I don't like doing that these days...

scenario
intake fan max RPM is 4500 rpm and is spinning at 3400 rpm
exhaust fans max rpm is 2400 rpm and is spinning at 2600 rpm

a> is the slower exhaust fan actually slowing down the intake fan as it is being forced to spin the exhaust one faster than it can electrically spin itself?
b> is the exhaust fan even electrically doing anything since its exceeding its max rpm due to the intake fans higher rpm

I am guessing the exhaust fan being that much slower isnt doing anything but causing impedance and should be removed. correct?
I can match it but don't like the extra noise but if its not actually doing anything then I dont need an exhaust fan anyway....

While I am not an "airflow engineer", here's another possibility:

c> The exhaust fan is lowering the pressure that the intake fan "sees", and hence the intake fan speed can be reduced without having the miner overheat.
Bingo.
It's all about static pressure. I haven't actually checked their specs but I'd wager that despite the exhaust fan spinning slower it is still rated with same CFM when working against a light resistance as the intake fan is when the intake is working against high back pressure.

Difference is that that intake fan can move that air against the high resistance all those heatsink fins produce. The unloaded CFM of the intake fan is much higher. Put the 2 fans together and it's a win-win.

side note: The 1-fan s7 proves that the 'help' the exhaust provides is not necessarily needed. I have 3 of them running full stock speed in 85F ambient and they are perfectly happy.

sounds good! I am trying to cut the DB's(NOISE) down so trying different things.
Corsair fan is super quiet. I don't get why they went with these super loud 4400rpm fans when the S1/S3's 3800rpm fans move enough air.
6  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: July 13, 2016, 11:13:57 PM
Fan dynamics...

  I was thinking and I don't like doing that these days...

scenario
intake fan max RPM is 4500 rpm and is spinning at 3400 rpm
exhaust fans max rpm is 2400 rpm and is spinning at 2600 rpm

a> is the slower exhaust fan actually slowing down the intake fan as it is being forced to spin the exhaust one faster than it can electrically spin itself?
b> is the exhaust fan even electrically doing anything since its exceeding its max rpm due to the intake fans higher rpm

I am guessing the exhaust fan being that much slower isnt doing anything but causing impedance and should be removed. correct?
I can match it but don't like the extra noise but if its not actually doing anything then I dont need an exhaust fan anyway....
7  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: June 21, 2016, 05:49:05 PM
anyway to quiet down the S7's fans?

I don't know if its normal or not, I have 4680/4200 RPM  @ 53C/54C/52C @ 675Hz  4.56GH/s


those temps are lower then they need to be.

manually set fans to 50% and clock at 650

give back your numbers  with those settings.

I am trying to get you to be at

rpm 3500/3300 @ 63c/64c/62c @ 650hz and 4.47 gh/s


the temps in bold are good so the lower you can set fans and get that 62-65c set of numbers is good.

the small drop in hash to 4.47 is hardly any money.

Oh nice. lol... when I asked that I hadn;t noticed there was a fan speed adjustment but awesome info!
   I put fans at 50% left it at 675 to see what would happen since they are in AC.
so now I have 3360/3720 60/61/59 675 4600 gh/s   and the noise is way down. I could probably drop the fans lower to get to 62's huh?
Is there any OS mod to get these to shut off at like 75 instead of over 80? I rather they stop mining than risk frying over 80.

 Thanks!
8  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: June 21, 2016, 03:52:16 PM
anyway to quiet down the S7's fans?

I don't know if its normal or not, I have 4680/4200 RPM  @ 53C/54C/52C @ 675Hz  4.56GH/s

Put the S7 in to a soundproof cabinet like I did or underclock it and reduce the fan speed.

What does your sound proof cabinet consist of? still need a lot of air flow to keep it cool and fresh cool air in
9  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: June 21, 2016, 03:34:35 PM
anyway to quiet down the S7's fans?

I don't know if its normal or not, I have 4680/4200 RPM  @ 53C/54C/52C @ 675Hz  4.56GH/s
10  Bitcoin / Hardware / Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order on: June 21, 2016, 03:23:19 PM
Is the S9 as loud as the S7?

   The fan noise on the S7 is unbearable compared to S3's. sigh.
11  Bitcoin / Hardware / Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order on: June 14, 2016, 04:13:50 PM
at 1275watts is it now ok to use something like a EVGA Gold G2 1300watt?
 Been Eyeballing 1600watts ones but 1300 is liek 150$ cheaper Wink

you'd be pushing it pretty hard.

easy solution is to underclock the S9 slightly, such as to 13TH - which would reduce your PSU load by 100W

Under clock a bit more to 11.5th. The 1300  g2 will work fine..

Then figure your math. You save 150 on the psu. But lose 2000gh to 2500th.

At current diff that's about $3 per day before power costs. So probably 100+ days ROI on that difference alone... I'd say if one already has a 1300W PSU they should probably underclock. If buying new - I'd buy a server PSU anyway.

well the 1300 only has 6 atx connectors so lame.


first of all, eight (four singles and two doubles=8); second, I bought two PCIe split cables (for $4 ea) that increase total numbers of connectors to 10. has been running many B1-5 and 6 like this for 6-8 mo already on EVGA 1300. S7 b1,3,5 has similar 1293 wattage, B2,4,6 even less watts.
EDIT: exactly what @suchmoon said as well ^^^^

where did you get the PCIe split cables. I just want to make sure I get same gauge wire as you! random amazons are bad choices! I did that for my S3's and got like thinner than 22 gauge or something. almost fried them. rewired them with 18 gauge.
 so using a 1300watt GOLD how much under clocking? like a 4.7 S7 needs to run at work? 4.5? or something worse?
thanks

@bspurloc I get Jacobs parts-they have 18gauge, work fine
https://www.amazon.com/gp/product/B00JLU0UQ4
S9 B2 can run on EVGA 1300 as is since it's power usage is almost the same as original S7 B1.
As far as undercloclocking S7 batches above 8, I would say that 650 or even 675 should be OK, but i would start with 650.
B6 is exactly the same as above B8, but runs on 600 and uses only 1042W; B8-18 runs at 700, which is 1293W (1390-1400W at the wall).
Fro this, I assume that 650 would be around 1167 (1228 at the wall)  and 675 would be 1230W (1300W at the wall). EVGA 1300 can handle 1360W at the wall just fine.

  thanks for the info. what hashing rate would 675 get?
sorry for dumb question. I am just jumping up to s7/s9's.
12  Bitcoin / Hardware / Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order on: June 14, 2016, 04:12:38 PM
If you're looking at DC power, each blade needs around 400W and the controller and fans burn another 60 or so.

The chips cache work and cgminer updates it, so if cgminer stops sending work the chips will keep hashing on the last thing they were given. Even if they don't, there's still some power being burned in there while the chips idle (maybe on the order of 1W per chip), and if it's not allowed to escape things will get toasty. One guy on here has reported losing a couple blades due to overheats from that very problem.

  cool. thanks. I wonder if a server room would keep them cool enough.
I do have a pile of extra fans laying around that I grabbed cheap back when everyone thought the fans they use are something special... u know like not the exact fans used in Dell Precision 390/380/t3400 etc etc cases... exact same part number lol.
   I could just toss one of those into the mix for emergencies
13  Bitcoin / Hardware / Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order on: June 14, 2016, 03:06:39 PM
If you want to run it on two PSUs, there's a risk of the controller PSU shutting down and the boards on the other PSU overheating. If I was running a 750 and a 1300, I'd hook the controller and two boards off the 1300 and the third board off the 750. I would then wire one of the fans to run off the 750, except you need to keep the blue and yellow wires from the fan tied into the controller so it still has speed control and RPM readings. But what'll happen is, worst case, your 1300 shuts off and you still have one board making heat but you still have one fan to cool it.

  Interesting the blade keeps mining even though the controller board is not communicating with it anymore? are you sure? I thought cgminer issued each blade the work to do and when cgminer ceases to run the boards go idle.
   I was looking at some things, so each board needs 480 watts. so a 1000 watt should be enough to power 2 boards and a 750 to power the other board and controller.
14  Bitcoin / Hardware / Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order on: June 14, 2016, 02:56:34 PM
at 1275watts is it now ok to use something like a EVGA Gold G2 1300watt?
 Been Eyeballing 1600watts ones but 1300 is liek 150$ cheaper Wink

you'd be pushing it pretty hard.

easy solution is to underclock the S9 slightly, such as to 13TH - which would reduce your PSU load by 100W

Under clock a bit more to 11.5th. The 1300  g2 will work fine..

Then figure your math. You save 150 on the psu. But lose 2000gh to 2500th.

At current diff that's about $3 per day before power costs. So probably 100+ days ROI on that difference alone... I'd say if one already has a 1300W PSU they should probably underclock. If buying new - I'd buy a server PSU anyway.

well the 1300 only has 6 atx connectors so lame.


first of all, eight (four singles and two doubles=8); second, I bought two PCIe split cables (for $4 ea) that increase total numbers of connectors to 10. has been running many B1-5 and 6 like this for 6-8 mo already on EVGA 1300. S7 b1,3,5 has similar 1293 wattage, B2,4,6 even less watts.
EDIT: exactly what @suchmoon said as well ^^^^

where did you get the PCIe split cables. I just want to make sure I get same gauge wire as you! random amazons are bad choices! I did that for my S3's and got like thinner than 22 gauge or something. almost fried them. rewired them with 18 gauge.
 so using a 1300watt GOLD how much under clocking? like a 4.7 S7 needs to run at work? 4.5? or something worse?
thanks

10 % downclock      so 4700 = 4230

or do a 15% downclock to 4000gh. 

I run my s-7 at 4000gh on a seasonic 1200 plat.

 batch 2 been running since october  at freq 512 vs 575

note batch 2 uses 162 chips  not 135

  Ugh my stupid brain looks at that and thinks. ok I will be losing 700 so leave an s3 running to make up for it. but I want to get rid of all the s3's lol.
Ugh... why do I have to think things out! hrmm... I could run a 1300 watt gold and use a leftover 750 watt and keep it at 4.7 couldn't I!
15  Bitcoin / Hardware / Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order on: June 14, 2016, 02:53:04 PM
at 1275watts is it now ok to use something like a EVGA Gold G2 1300watt?
 Been Eyeballing 1600watts ones but 1300 is liek 150$ cheaper Wink

you'd be pushing it pretty hard.

easy solution is to underclock the S9 slightly, such as to 13TH - which would reduce your PSU load by 100W

Under clock a bit more to 11.5th. The 1300  g2 will work fine..

Then figure your math. You save 150 on the psu. But lose 2000gh to 2500th.

At current diff that's about $3 per day before power costs. So probably 100+ days ROI on that difference alone... I'd say if one already has a 1300W PSU they should probably underclock. If buying new - I'd buy a server PSU anyway.

well the 1300 only has 6 atx connectors so lame.
  What server PSU? I only have 110volt outlets. I'm not paying the power bill so don't really care about those costs.
I assume with a server PSU you have to add the 10 atx connectors. any good place for those if so? the cheapos are made with wire too thin for these amp ratings.

If I recall correctly EVGA G2 1300W has 8 PCI-e, two of which are shared but sufficient gauge to do ~150W or so needed for an underclocked S7/S9. A high-quality aftermarket splitter should be ok for the 9th one and the controller can be powered off Molex. Attempt this ONLY if you know exactly what you're doing otherwise it's a fire hazard.

If you don't care about the power costs I'm guessing you won't care about installing a 240V circuit either so perhaps the server PSU route is not for you Smiley

  I didnt say i didnt care, I said I wasnt paying the power. all my 220 outlets are in use. so server ones people use are all 220v?
There is no secret 1400+ watt 110v server power supplies out there?
 there is always something out there man!
When I was mining USB miners I found a dude selling old old old brand new USB 1.0 MAC 6 port hubs and used cisco router 5v 7amp adapters for them for dirt cheap while everyone else was buying super expensive hubs and power supplies. The dude was flabbergasted why I bought every singe one he had. When no one had bought any for over a year. lol. who would want a USB 1.0 hub lol. in MAC Fancy colors too lol.
  Each HUB came with a 5v 3amp adapter which I promptly sold so all the hubs cost me like $2 each. lol.
gotta be some work around!
  can I use 2 750 watt supplies to run s7/s9? I will be shutting down some S3's opening up 750 watt supplies. still need some PCIe split cables though since the 750's only have 4 PCIe cables on them.
  If I did that how about CPU to PCIe cables? they have like 2 CPU cables each.
16  Bitcoin / Hardware / Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order on: June 14, 2016, 02:29:38 PM
at 1275watts is it now ok to use something like a EVGA Gold G2 1300watt?
 Been Eyeballing 1600watts ones but 1300 is liek 150$ cheaper Wink

you'd be pushing it pretty hard.

easy solution is to underclock the S9 slightly, such as to 13TH - which would reduce your PSU load by 100W

Under clock a bit more to 11.5th. The 1300  g2 will work fine..

Then figure your math. You save 150 on the psu. But lose 2000gh to 2500th.

At current diff that's about $3 per day before power costs. So probably 100+ days ROI on that difference alone... I'd say if one already has a 1300W PSU they should probably underclock. If buying new - I'd buy a server PSU anyway.

well the 1300 only has 6 atx connectors so lame.


first of all, eight (four singles and two doubles=8); second, I bought two PCIe split cables (for $4 ea) that increase total numbers of connectors to 10. has been running many B1-5 and 6 like this for 6-8 mo already on EVGA 1300. S7 b1,3,5 has similar 1293 wattage, B2,4,6 even less watts.
EDIT: exactly what @suchmoon said as well ^^^^

where did you get the PCIe split cables. I just want to make sure I get same gauge wire as you! random amazons are bad choices! I did that for my S3's and got like thinner than 22 gauge or something. almost fried them. rewired them with 18 gauge.
 so using a 1300watt GOLD how much under clocking? like a 4.7 S7 needs to run at work? 4.5? or something worse?
thanks
17  Bitcoin / Hardware / Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order on: June 10, 2016, 05:43:21 PM
at 1275watts is it now ok to use something like a EVGA Gold G2 1300watt?
 Been Eyeballing 1600watts ones but 1300 is liek 150$ cheaper Wink

you'd be pushing it pretty hard.

easy solution is to underclock the S9 slightly, such as to 13TH - which would reduce your PSU load by 100W

Under clock a bit more to 11.5th. The 1300  g2 will work fine..

Then figure your math. You save 150 on the psu. But lose 2000gh to 2500th.

At current diff that's about $3 per day before power costs. So probably 100+ days ROI on that difference alone... I'd say if one already has a 1300W PSU they should probably underclock. If buying new - I'd buy a server PSU anyway.

well the 1300 only has 6 atx connectors so lame.
  What server PSU? I only have 110volt outlets. I'm not paying the power bill so don't really care about those costs.
I assume with a server PSU you have to add the 10 atx connectors. any good place for those if so? the cheapos are made with wire too thin for these amp ratings.
18  Bitcoin / Hardware / Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order on: June 10, 2016, 04:39:18 PM
at 1275watts is it now ok to use something like a EVGA Gold G2 1300watt?
 Been Eyeballing 1600watts ones but 1300 is liek 150$ cheaper Wink

grr but 1300 only has 6 vga powers... sigh
19  Bitcoin / Hardware / Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order on: June 10, 2016, 03:19:03 PM
isnt it lower power cuz its lower frequency?

It's on, get it while it's hot Smiley

https://enshop.bitmain.com/productDetail.htm?pid=000201606080945140191yC0JO150614

$1985 though... not a good price at all

Edit: 153.52 per TH/s vs $150 per TH/s for Batch 1. And shipped a week later. Ouch.

Fahget about it!

I think you guys missed the power consumption of batch 1 1375 and batch 2 1275.

If you calculate it u will see that B1 and B2 are equivalent.


20  Bitcoin / Hardware / Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order on: June 06, 2016, 08:46:18 PM
Oh man I missed the release of this!

 I see everyone still doesn't take into account when you buy something like this u tend to be REPLACING other equipment.
  So to me $2100 is a steal, the equipment I sell I will get back around $1000.
no 220volt so I guess its EVGA 1600watt for $320 another costs to add on.
  And selling off that other equipment drops the electricity used by so much for me. insane. ugh can't believe I missed this!
where are more! lol

Hope these don't fry like usual first batches.
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