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Author Topic: (hacked) S7LN Group Buy  (Read 14647 times)
philipma1957
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July 12, 2016, 01:53:49 PM
 #121

Well to say I'm a little excited is an understatement. Just checked the tracking I for philipma1957 gave me and it's clears customs with an eta of Thursday delivery  Grin


you have 220 voltage correct?

I am curious   to see if your watt usage is 425 or 430 vs the 442 I got with stock psu and 120 volts.

I am using mine as a full time lotto machine

http://solo.ckpool.org/workers/1JdC6Xg3ajT3rge3FgPNSYYFpmf53Vbtje


this is a 2.5 cent power setup  so I spend $8.00 usd a month to run it.

Most likely I won't hit a block but you never know.

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gt_addict
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July 12, 2016, 02:31:37 PM
 #122

Yea so I've read the psus are more efficient on the higher voltage supply. My electricity cost is silly but I'm only doing this as a hobby and not in it to make money as such. Obviously don't want to lose much of course but it's still something to do  Cheesy


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July 13, 2016, 03:48:05 PM
 #123

So a little update. Finished work early and went to the courier depot to pick up the s7. Had to pay customs charges (£47, £14 was just from the courier  Roll Eyes ). If I hadn't have picked it up they would've sent a letter saying I need to pay charges and then it would've been another couple of days before it was delivered.

Anyway, I've unplugged my old rboxes and raspi (which will still run the gekkos) and set up the psu on top.i took the bracket off and turned it around so the exhausts are both pointing the same way (couldn't be bothered to take both fans off, plus it works better for the length of cables I have. That's as far as I've got as I've had to babysit the niece and nephew until later. I will post pictures and power figures later once it's set up.

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philipma1957
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July 13, 2016, 08:28:23 PM
 #124

So a little update. Finished work early and went to the courier depot to pick up the s7. Had to pay customs charges (£47, £14 was just from the courier  Roll Eyes ). If I hadn't have picked it up they would've sent a letter saying I need to pay charges and then it would've been another couple of days before it was delivered.

Anyway, I've unplugged my old rboxes and raspi (which will still run the gekkos) and set up the psu on top.i took the bracket off and turned it around so the exhausts are both pointing the same way (couldn't be bothered to take both fans off, plus it works better for the length of cables I have. That's as far as I've got as I've had to babysit the niece and nephew until later. I will post pictures and power figures later once it's set up.

good it arrived and you set it up.

have fun with your niece and nephew  you are lucky to get them for babysitting.  Many people never get a chance to do that.

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gt_addict
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July 14, 2016, 05:26:43 AM
 #125

Well I've left her running overnight and the temps haven't changed still 45-46c. Is this within the "hot" range or should I lower the fans a bit and raise the temp?

The only reason I'm asking is that she's pulling 473w @ the wall so about 430w for the unit at 2.02Th.

And I must say she's fooking quiet  Shocked I mean I had three rboxes in the same location and they were quieter than two S3's and could happily live with those but this is AMAZING. Sounds like the traffic noise outside but alot lower in pitch.


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philipma1957
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July 14, 2016, 07:13:57 AM
 #126

Well I've left her running overnight and the temps haven't changed still 45-46c. Is this within the "hot" range or should I lower the fans a bit and raise the temp?

The only reason I'm asking is that she's pulling 473w @ the wall so about 430w for the unit at 2.02Th.

And I must say she's fooking quiet  Shocked I mean I had three rboxes in the same location and they were quieter than two S3's and could happily live with those but this is AMAZING. Sounds like the traffic noise outside but alot lower in pitch.


My little mining hobby.-





That s-7 has traveled quite a bit China > Missouri > New Jersey > New York > UK

60c is safe so you could drop fans from 20 to 18%

I got 442 watts at the kwatt meter  you are getting 473watts

so if both meters suck for accuracy real watts could be in the middle.

HagssFin's also did 442 on my meter  so lets see what he gets on his in finland. He should have his soon.

@ fin your unit cleared customs in finland

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July 14, 2016, 08:05:13 AM
 #127

Yea I'm thinking they really suck for accuracy lol. It's reads fairly stable but doesn't matter. I'm just really pleased she's so damn quiet. It's a hard thing to judge when reading comments as everyone's tolerance is different.

So at 60c she will definitely be in the "hot" range for the voltage?

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philipma1957
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July 14, 2016, 02:14:09 PM
 #128

Yea I'm thinking they really suck for accuracy lol. It's reads fairly stable but doesn't matter. I'm just really pleased she's so damn quiet. It's a hard thing to judge when reading comments as everyone's tolerance is different.

So at 60c she will definitely be in the "hot" range for the voltage?

60c is conservative for the board temps.

many  s-7's got into the mid 60's even low 70's and ran fine for more then 8 or 9 months. when they were not down volted

but I rather give 60c since it is conservative.


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HagssFIN
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July 14, 2016, 02:30:40 PM
 #129

Yeah, I'll soon have my one mining  Smiley
I paid the VAT 24% and it's on the way to the west coast.
I'll measure the consumption with my clamp meter and test cable -setup soon as I have my hands on it.

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July 15, 2016, 01:27:32 PM
 #130

Yea I'm thinking they really suck for accuracy lol. It's reads fairly stable but doesn't matter. I'm just really pleased she's so damn quiet. It's a hard thing to judge when reading comments as everyone's tolerance is different.

So at 60c she will definitely be in the "hot" range for the voltage?

Yes, that would be hot range.

If you haven't already set the fans to manual, I would recommend setting them to 15%.  This should raise your temps a bit and make your hackedLN even quieter ( I think the PSU fan is louder than the miner fans at 15%).  Also may slightly lower your power consumption.  

philipma1957
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July 15, 2016, 01:47:07 PM
 #131

Yea I'm thinking they really suck for accuracy lol. It's reads fairly stable but doesn't matter. I'm just really pleased she's so damn quiet. It's a hard thing to judge when reading comments as everyone's tolerance is different.

So at 60c she will definitely be in the "hot" range for the voltage?

Yes, that would be hot range.

If you haven't already set the fans to manual, I would recommend setting them to 15%.  This should raise your temps a bit and make your hackedLN even quieter ( I think the PSU fan is louder than the miner fans at 15%).  Also may slightly lower your power consumption.  

I just dropped mine to 18% really quiet.

Please support sidehack with his new miner project Send to : 1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
I mine alt coins with https://simplemining.net I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
Swoosher76
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July 16, 2016, 12:19:40 AM
 #132

@sidehack

Any thoughts on another round?

Thanks
sidehack
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July 16, 2016, 05:49:02 AM
 #133

I've got one on my shelf (ordered an extra) that's probably decent enough to sell. I forget the numbers exactly; it wasn't super so about 450W at 2TH. If someone wants me to work one up, you can always just have it shipped here and I'll make it as stably efficient as possible for a given hashrate and reship for a nominal fee.

I'm going to work on a couple of proper 3-board S7 machines in the next couple days, probably optimized for 600MHz or so and have them for sale - 4TH at between 900 and 1000W is what I'm shooting for if anyone's interested. I might shoot for 550MHz and get 3.7TH around 800W.

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July 16, 2016, 08:12:52 AM
 #134

Sidehack, Im tempted but just cant afford the electricity for a second "big" miner (my electricity cost is 0.13gbp kwh). My one is running beautifully though, amazingly quiet. Thanks again.

On a different note, ive se the fans to 15% to raise the temp uptp 60c-ish and the fan speed is still reading 1680 for both fans (same as the 20% setting), I assume this is the lowest they will go to?

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IITravel01
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July 16, 2016, 04:34:12 PM
 #135

Looking forward to reading on your work on the S7.  What is the the default hot/cold voltage settings on the S7?
sidehack
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July 16, 2016, 04:47:38 PM
 #136

I don't know how to interpret that question. All my "work on the S7" is the same as my work on the S7LN, which is all already laid out in the S7 hacking thread in Hardware.

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July 16, 2016, 05:06:22 PM
 #137

That's what I was asking, if the default hot/cold volt. setting was the same 710/680 for the S7 as it is for the S7-LN.

Thanks,
sidehack
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July 16, 2016, 05:19:22 PM
 #138

The question does not make sense. There is no hot/cold default for either; the hot/cold switchup is something I implemented specifically to have a higher voltage for startup stability at low running voltages. "Default hot/cold" does not exist.

The default voltage for an S7 is higher than the S7LN since it's designed to run at higher frequency. At least all the ones I've played with.

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July 16, 2016, 05:45:51 PM
 #139

OK, so the default of the S7-LN is 680 then, but not the same on the S7?  I was going by your chart where you state that the 710/680 is the "approx. stock" setting.  I was trying to figure out if the same chart would apply to the S7 as it does with the S7-LN in that the boards/blades are the same except on the LN they've switched larger heatsinks on them but no difference in any software/firmware (outside of the controller board that lies on top with the NIC port attached).
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July 16, 2016, 06:21:38 PM
 #140

Sounds like all of this question should be addressed (or likely has already been addressed) in the hardware thrad.

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