Bitmain New Miner S7-LN 2.7T @697W discussion (Not official) - page 9.

RichBC

hero member

Activity: 588

Merit: 500

Quote from: AleScamHole on June 06, 2016, 02:25:44 AM

honestly thats what you get for buying cheap chinese shit man
good for you, next time don't support a company that sends out garbage, and works to destroy BTC thru their mining practices.
good for anyone with shitty equipment from them

So who would you buy a state of the art Miner from?

Rich

AleScamHole

sr. member

Activity: 504

Merit: 250

Don't you looooooove how offensive my name sounds?

Quote from: vortexz on June 06, 2016, 01:42:55 AM

I recived my 3x S7 LN today
2 of them are working fine,
1 of them is not powering at all
Can anyone help me ?

I checked the power cord and it is working correctly on other PSU
I switched the PSU on first and then the JUMPER on
Miner not powering at all

Any advices ? WHat should I do ?

It's a brand new miner that I just recived a few mins and not working at all
I don't like this, and I don't want to send it back to warranty because it will cost me so much to ship and lose so much time

Later Edit : I was thinking that it could be only the PSU that is not working right ? Because if it was working fine it should have started even without the miner ?

Later Later Edit : Switched the PSu with one of mine and it is working
F*cking Bitmain send me an already burnt PSU

honestly thats what you get for buying cheap chinese shit man
good for you, next time don't support a company that sends out garbage, and works to destroy BTC thru their mining practices.
good for anyone with shitty equipment from them

vortexz

legendary

Activity: 1120

Merit: 1001

I recived my 3x S7 LN today
2 of them are working fine,
1 of them is not powering at all
Can anyone help me ?

I checked the power cord and it is working correctly on other PSU
I switched the PSU on first and then the JUMPER on
Miner not powering at all

Any advices ? WHat should I do ?

It's a brand new miner that I just recived a few mins and not working at all
I don't like this, and I don't want to send it back to warranty because it will cost me so much to ship and lose so much time

Later Edit : I was thinking that it could be only the PSU that is not working right ? Because if it was working fine it should have started even without the miner ?

Later Later Edit : Switched the PSu with one of mine and it is working
F*cking Bitmain send me an already burnt PSU

IITravel01

sr. member

Activity: 338

Merit: 250

Quote from: scyth3 on June 04, 2016, 08:00:51 PM

What are you waiting for? Pump it up to 700mhz

It should do 700M no problem (doing 3.15 TH/s), but since the fans are only running at about 3,000rpm, it's not advisable.

scyth3

sr. member

Activity: 490

Merit: 251

What are you waiting for? Pump it up to 700mhz

adaseb

legendary

Activity: 3808

Merit: 1723

I think somebody already figured out a way to undervolt these by doing a mod. It ran I think at 0.22w/ghs

Quote from: adaseb on May 11, 2016, 07:27:38 PM

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

this miner looks like a nice one for office use.

set freq to 540 it will hash 2500gh use just over 625 watts. be quiet . looks like a good fit for some.

notlist3d

legendary

Activity: 1456

Merit: 1000

Quote from: Bhosted on June 03, 2016, 05:02:29 PM

New S7-LN running

Saving space with pic

Thanks for sharing interesting to see this out in the wild. I would love to see more pictures of this miner. Think you can get the front/back/sides with a camera and post in thread? Either way thanks again for sharing.

sidehack

legendary

Activity: 3374

Merit: 1859

Curmudgeonly hardware guy

I don't need a PSU that beefy. Honestly a good 650 would do it, so a cheap 1000W is probably about right and I don't want to gut my Dragon.

I'm going to have a lot on my plate starting about Tuesday of this week and going through the forseeable future, but I'll probably still make sure to take a day and jack around with this miner as much as I can. The BM1385 should be capable of going below 0.2J/GH board-level.

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

It looks to me that a clock at 540 vs 600 would really let fans run low. Hash would drop to 2490 vs 2770
I wonder if sidehack could figure out a voltage drop for these.
Remember how the s-1's could do 140gh at 170 watts vs 200 gh at 400 watts with a simple pencil mod.

QuintLeo

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Activity: 1498

Merit: 1030

Quote from: sidehack on June 01, 2016, 09:06:29 PM

So, I bought one of these. Mostly because I want to play with volt adjusting and I actually have need of a beefy ATX PSU.

That's what EVGA G2 1300s and Seasonic X1250s are for.

8-P

The listing error would be ... more than a bit in character for Bitmain on their S7 varients. Anyone put a wattmeter on one of these puppies yet to see what the REAL power draw looks like?

Bhosted

full member

Activity: 328

Merit: 100

New S7-LN running

bekonik

newbie

Activity: 23

Merit: 0

Yesterday I received s7 silent. Chips frequency 600, temp 45/48 but I have cold room. Fan speeds 2700/3000 and I have to told you that is really silent.

sidehack

legendary

Activity: 3374

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Curmudgeonly hardware guy

2.7TH is dead on for 90 chips at 600MHz. Given that a lot of the listing looks like it was copied directly from an S7 page, saying 700MHz instead of 600MHz wouldn't be the only error in the info.

alh

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Activity: 1846

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Quote from: IITravel01 on June 02, 2016, 12:34:09 PM

I'm a little confused. If this is just 2 blades of a S7 with 90 chips (45 per blade compared to the 3 blades of a S7 with a total of 135 chips) and the chips are clocked at the same 700M, then shouldn't it be 3.15 TH/s (instead of the 2.7 TH/s)? Or am I missing something here? I see that the power usage is less than 2/3 (866W vs. 700w is about 81% of original), so the efficiency is corrected for the 2.7 TH/s to 0.25 J/GH. Or do I have this wrong?

Also, when someone gets one, please post pics on how the PS bracket is attached to the S7 case?

I agree that something looks off. The website for this miner suggests that it's running at 700 MHz, then the figures don't work out right. It would be really attractive for somebody to get their hands on one and do a proper review. Maybe they got some overall power reduction in the fans, but that doesn't cover the hashrate and frequency discrepancy.

RichBC

hero member

Activity: 588

Merit: 500

Quote from: IITravel01 on June 02, 2016, 12:34:09 PM

I'm a little confused. If this is just 2 blades of a S7 with 90 chips (45 per blade compared to the 3 blades of a S7 with a total of 135 chips) and the chips are clocked at the same 700M, and the efficiency is the same 0.25 J/GH, then shouldn't it be 3.15 TH/s (instead of the 2.7 TH/s)? Or am I missing something here? I see that the power usage is less than 2/3, but shouldn't the efficiency then be corrected and go up? Or do I have this wrong?

Also, when someone gets one, please post pics on how the PS bracket is attached to the S7 case?

Yes I agree the obvious Maths do not add up. I had assumed that it was merely a 2 Board version of the 700MHz 3 Board 135 Chip S7.

So either the clock speed must be less than 700MHz or the Hash Rate of the chips at 700MHz must be lower or they just got the maths wrong...

Rich

IITravel01

sr. member

Activity: 338

Merit: 250

I'm a little confused. If this is just 2 blades of a S7 with 90 chips (45 per blade compared to the 3 blades of a S7 with a total of 135 chips) and the chips are clocked at the same 700M, then shouldn't it be 3.15 TH/s (instead of the 2.7 TH/s)? Or am I missing something here? I see that the power usage is less than 2/3 (866W vs. 700w is about 81% of original), so the efficiency is corrected for the 2.7 TH/s to 0.25 J/GH. Or do I have this wrong?

EDIT: I think that the 700M is an error and that they are running at 600M (this is the speed I had my S7 running and it was putting out about 4.05 TH/s).

Shipping is about $55 with FedEx to So. Cal.

Also, when someone gets one, please post pics on how the PS bracket is attached to the S7 case? I'd be interested in just picking up the PS bracket if available.

sidehack

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Curmudgeonly hardware guy

I'm sure it'll require hardware hacking; best case, it'd take jacking into a DPOT's I2C line. Probably pretty much the same as the 135-chip S7 "repair" thread.

adaseb

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Quote from: sidehack on June 01, 2016, 09:06:29 PM

So, I bought one of these. Mostly because I want to play with volt adjusting and I actually have need of a beefy ATX PSU.

How do you adjust the voltage on these? Is there an option or do you need to solder a variable resistor?

sidehack

legendary

Activity: 3374

Merit: 1859

Curmudgeonly hardware guy

So, I bought one of these. Mostly because I want to play with volt adjusting and I actually have need of a beefy ATX PSU.

Topic: Bitmain New Miner S7-LN 2.7T @697W discussion (Not official) - page 9. (Read 23285 times)