S-5 review. It has arrived some info is in! - page 14.

philipma1957

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Quote from: Biodom on December 30, 2014, 10:22:46 AM

Quote from: philipma1957 on December 29, 2014, 07:11:55 PM

Quote from: AbuGarcia on December 29, 2014, 06:20:08 PM

when you replace the stock fan with the silverstone you go from a PWN fan to a fan with tach only? so the silverstone fans go full speed all the time?

what is the CFM of the silverstone? Volts and amp rating?

I say this because bitmain uses off the shelf chinese brand server fans. If you use delta or nidec brand fans, you will see a huge boost in cfm with minimal noise increase at stock speeds or better yet, you can slow down those (delta, nidec) fans and have minimal noise and decent cfm.

no the silverstone is 4 pin pwm it is the pull fan.

I will order this as the push

http://www.amazon.com/gp/product/B00KFCRATC/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

these two as push pull should work

I am not sure I understand: do you suggest Noctua as a push and Silverstone as pull? Why not two Noctuas (one as push, another as pull)?
Also, would I need to clip a wire on any of them?
In addition, what is that Delta 3pin everybody is talking about? I look at ebay-there are many different variants.
Thanks, much obliged.

Well I know the noctua fits on the push side under the ethernet jack. the silverstone is a combo 120/140 mm fan and only fits on one side.
I had the silverstone in house I know it is a good powerful quiet 4 pin pwm fan. this is why I use it.

I will look for a ebay link on the 3 pin delta

http://www.ebay.com/itm/Delta-AFB1212VHE-120mm-x-38mm-Very-High-Speed-Fan-3-Pin-Connector-148-CFM-NEW-/121150995989?pt=US_Computer_Case_Fans&hash=item1c35297e15

Biodom

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Quote from: philipma1957 on December 29, 2014, 07:11:55 PM

Quote from: AbuGarcia on December 29, 2014, 06:20:08 PM

when you replace the stock fan with the silverstone you go from a PWN fan to a fan with tach only? so the silverstone fans go full speed all the time?

what is the CFM of the silverstone? Volts and amp rating?

I say this because bitmain uses off the shelf chinese brand server fans. If you use delta or nidec brand fans, you will see a huge boost in cfm with minimal noise increase at stock speeds or better yet, you can slow down those (delta, nidec) fans and have minimal noise and decent cfm.

no the silverstone is 4 pin pwm it is the pull fan.

I will order this as the push

http://www.amazon.com/gp/product/B00KFCRATC/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

these two as push pull should work

I am not sure I understand: do you suggest Noctua as a push and Silverstone as pull? Why not two Noctuas (one as push, another as pull)?
Also, would I need to clip a wire on any of them?
In addition, what is that Delta 3pin everybody is talking about? I look at ebay-there are many different variants.
Thanks, much obliged.

philipma1957

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'The right to privacy matters'

Quote from: fontline on December 30, 2014, 09:25:56 AM

bitmain wrote its possible to run s5 at 0.2w/ghs (less hashrate) with a 9v psu. is there a way to test it?

yes but I won't be able to try it for a while. this psu

http://www.ebay.com/itm/400-Watt-Adj-Volts-9-15-DC-36-Amp-HAM-CB-Power-Supply-Real-USA-MegaWatt-/180777043955?pt=US_Radio_Comm_Device_Power_Supplies&hash=item2a1726c7f3

can provide 360 watts 24/7/365 so with it lowered to 9 or 10 volts and freq lowered to 200 or 225 on an s-5 you should get low numbers.

the problem is this psu is around 80% efficient so if you use a 92 efficient evga 1300 g2 and 12/12 volts or a 80 percent efficient megawatt 9/12 volts

you make out with the 9/12 volts ratio and lose out with the 80/92 efficient psu ratio

simple math is 9/12 x 100 = 75 then 92 /80 x 75 = 86.25 still better then the 100 but not as good as 75

once you add in the price of the psu vs an atx you have in house it kind of does not pay.

I have talked with a forum member about a down volt 'pot' device this would be about 87 % vs the 80% of the megawatt psu.

he may Post about this device in a week or so.

@ jelin1984

stock fan is 120mm by 38mm . my push delta is 120mm by 38mm my pull silverstone is 140mm by 38mm but has 120 mm fan holes.

my fans kept the temps at 60 and 57 with freq 350 my watts were at .5 and hash at 1154 hw were good

so I now went to freq 356 will get back later.

jelin1984

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What the size of fan
To replace with better one??

fontline

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bitmain wrote its possible to run s5 at 0.2w/ghs (less hashrate) with a 9v psu. is there a way to test it?

philipma1957

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'The right to privacy matters'

Just got freq 343 working

it is at 1099gh and 1 HW error after 20 minutes. so far going over and staying over 1100gh is not that easy to do.

I think I will change the pool setting for diff to d=1000

more photos

http://imageshack.com/a/img673/4320/6Dz888.jpg 1 meter sound

http://imageshack.com/a/img912/754/4aibfu.jpg 1 meter sound

http://imageshack.com/a/img661/1351/2DdOI9.jpg power at freq 343

http://imageshack.com/a/img911/3345/k6OFmm.jpg left fan pushes = 3 pin 38mm delta using pipe cleaners right fan 4 pin pwm silverstone pulls

http://imageshack.com/a/img661/4452/7wx1jM.jpg silverstone uses the stock screws and grill

http://imageshack.com/a/img537/6272/SUlyKN.jpg delta I added a grill attached with pipe cleaners and the evga pcie ties

http://imageshack.com/a/img911/5107/Ulg1Ky.jpg 1 meter sound again and it settled at 60.4

I will try to go to 1155 and 590 watts but so far I seem to flatten at 1100 gh and 565 watts. freq 331 337 and 343 all give near 1100gh with 562 watts

this is with a newly opened evga 1300 g2 and 4 cables.

redsn0w

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#Free market

Nice review @philipma1957 , thanks for your work !

Dexter770221

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Nice best share. 1 year ago this would solve a block.

philipma1957

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'The right to privacy matters'

these 2 fans are 10 on ebay-delta + 16.95 on amazon -silverstone = 27

1 s-5 = 480 in the paypal group buy + 27 fans = 507

1 sp20E= 500 group buy. must buy 2 = 500

at that price point and running both at 1100 the sp20e is 7 dollars less and at 1100gh uses less power per gh and appears stronger built .

so a quick set of opinions is the s-5 needs a price drop.

the sp20e is better made has case that is easy to stack.

the sp20e has a better gui

I need to test more but if I was buying more pieces and I was to pick the s-5 I think 400usd counting shipping is closer to a competitive price.

If I was to run an 100 unit setup I would not pick the s-5 due to case weakness.

The sides are plastic no bottom or top. These are like an s-1 with plastic sides. A big setup would be a P.I.T.A compared to the s-3 or the sp20E .

stacking these s-5's is not easy you will need to take some care.

I ran over night at freq 337 power was 563 watts at the kwatt meter my 2 replacement fans are hanging there db wise 60 db at 1 meter. the 3 pin runs at 3000 the silverstone is at 1800 rpm it has a max of 2000 rpm. the noise with this setup is better then the noise a sp20 makes if you drop fans to setting 20 and mine at 1100.

563/1108 = .508 watt per gh. very few errors

results below>>>>>>>>>> I am bumping to freq 343

Rabinovitch

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A humble Siberian miner

Quote from: vortexz on December 29, 2014, 07:49:28 PM

cheap design, not good
S5 sux

IMHO the main mistake is to use such an semi-open case. It should be just like S3 has, also with two fans to provide more intensive and directed airflow...

sk8erskid420

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I had a thought, now please remember this is just a thought and probably not to practical(cost efficient) for the home miner, but what about a waterblock cooler, something similar to the C1. If the heat is dissipated by the top of the chips then this should be an easy application, perhaps not by us, but perhaps bitmain in future releases. By that I mean it wouldn't be worth the cost for a home miner to buy all the required parts to watercool. if they could machine a waterblock that could intake/exhaust the coolant at the top of the block, perhaps intake at the top back and exhaust at the top front or something like that, then one could still stack sideways, cool extremely efficiently, and run a full loop system that could cool perhaps up to 3-5 units per radiator(haven't done the math, just spitballing). In theory I would guess that at stock speeds, this would keep the chips running under temp compared to a fan setup. Also as a bonus I would think a single fan used as a booster cooler to cool the interior of the unit would be an idea. Just remember this is only an idea that popped in my head so please do comment, I'd love to hear what others think of this, Good or bad. I'll prob post this in a few S5 threads to get some extra feedback.

judypug1956

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Quote from: IITravel01 on December 30, 2014, 01:26:09 AM

Quote from: Syke on December 30, 2014, 01:15:55 AM

Quote from: philipma1957 on December 30, 2014, 12:44:07 AM

okay I opened my new evga 1300 g2 up since the 760 watt seasonic plat crapped out at freq 325 and liked up to freq 306.

I am back at freq 325 and I will see if there is an issue with this freq.

at freq 325 watts are 542

542/1027 = .53 watts per gh

So over freq 306 may be when this miner loses best watts per gh.

Didn't you go from a Platinum to a Gold PSU? You should expect slightly higher power draw with the Gold.

Not necessarily, it depends on the efficiency curve which usually peaks at about 50% of max. load and that would be closer on a 1300w than a 760w.

yeah and that plat has done a year of mining. it dropped out 1 board to all x's and 1 zero after a few minutes of mining at freq 325.

the evga is 2 hours old. still solid with the freq 331.

going to bump to freq 337

IITravel01

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Quote from: Syke on December 30, 2014, 01:15:55 AM

Quote from: philipma1957 on December 30, 2014, 12:44:07 AM

okay I opened my new evga 1300 g2 up since the 760 watt seasonic plat crapped out at freq 325 and liked up to freq 306.

I am back at freq 325 and I will see if there is an issue with this freq.

at freq 325 watts are 542

542/1027 = .53 watts per gh

So over freq 306 may be when this miner loses best watts per gh.

Didn't you go from a Platinum to a Gold PSU? You should expect slightly higher power draw with the Gold.

Not necessarily, it depends on the efficiency curve which usually peaks at about 50% of max. load and that would be closer on a 1300w than a 760w.

Syke

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Quote from: philipma1957 on December 30, 2014, 12:44:07 AM

okay I opened my new evga 1300 g2 up since the 760 watt seasonic plat crapped out at freq 325 and liked up to freq 306.

I am back at freq 325 and I will see if there is an issue with this freq.

at freq 325 watts are 542

542/1027 = .53 watts per gh

So over freq 306 may be when this miner loses best watts per gh.

Didn't you go from a Platinum to a Gold PSU? You should expect slightly higher power draw with the Gold.

philipma1957

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'The right to privacy matters'

okay I opened my new evga 1300 g2 up since the 760 watt seasonic plat crapped out at freq 325 and liked up to freq 306.

I am back at freq 325 and I will see if there is an issue with this freq.

at freq 325 watts are 542

542/1027 = .53 watts per gh

So over freq 306 may be when this miner loses best watts per gh. db is 59 at a meter distance the pitch is okay. stock fan was 75db!! pitch was nasty

there are better fans then the 113 cfm delta 3 pin but this delta and this silver stone cost me about 10+ 17 = 27 bucks . I think I will run this at 325 for 6 hours then change to higher. good night folks

cryptoglance

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Quote from: philipma1957 on December 30, 2014, 12:09:08 AM

at cryptoglance i seem to be running 2 fans safely for now I do not know rating on the fans I use and the board powering them but so far so good.

Thank you. I expect to have this miner in my hands soon. Hopefully I can mod two silverstone fans for a better noise level.

Cheers

philipma1957

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Quote from: jimmothy on December 30, 2014, 12:13:31 AM

Is there a reason you can't increase the temps above 60C?

no I think 65c would be okay but I never ran an s-1 or an s-3 at that temp. So I do not mind going at a different temp. I just switched the silverstone to quiet

and the 3 pin is still at 3000 rpm the silverstone dropped to 840 rpm with temps holding at 58c and 54 c

see freq 306 numbers watts are at 495-499

jimmothy

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Is there a reason you can't increase the temps above 60C?

philipma1957

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Quote from: pekatete on December 29, 2014, 11:59:55 PM

Just to recap, if the stock fan is the V34809, then with a top rpm of 5300 (and assuming a linear increase in CFM and dba), then to get to stock cooling levels you'd need:
(stock rpm / fan max rpm) * fan max CFM = Stock CFM
(3800/5300) * 220 = 157 CFM
Applying the same simplistic logic to the dba: (3800 / 5300) * 64.8 = 46.46 dba
Thus any fan that can provide over 157 CFM with a dba less than 40 would be better.

PS. I know I am most likely wrong, but please don't shoot!

okay fan has no label FXDS IS IN TWO DIFFERENT SPOTS.

I won't use it as I like my ears. the two fans I have are a 3 pin 38mm delta that does 113 cfm max as push and the silverstone 141 mm by 38mm does 170cfm max as the pull I know that 113 + 170 = 283 cfm total but push pull loses some of that.

as i have ramped up to freq 325 watts are now 516 to 530 and a board failed so I will go to a lower freq. many x's and 1 0

this issue could be my seasonic 760 watt psu not the miner

I dropped down to freq 306 and I am good no hw's temps are 58 and 54

I may stay at this number for now. I need to get a better psu out as this 760 watt plat seems to want to stay at the 499 watt level on my kwatt meter.

at cryptoglance i seem to be running 2 fans safely for now I do not know rating on the fans I use and the board powering them but so far so good.

cryptoglance

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philipma1957 Thank you for the review!

What are your thoughts on 2x SILVERSTONE FHP-141 140mm (1 push, 1 pull)? Not going to be too much for the board to handle?

Topic: S-5 review. It has arrived some info is in! - page 14. (Read 19888 times)