[ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs

[Bicknellski]

My predictions, three months ago: Bitcoin TLV `14, #25 - Guy Corem - Mining Forecast
BitFury revealed their mining address two days afterwards. I didn't expect to see AntPool grow so much.
Let's see how the rest of my predictions will be in 2015. It was based of BTC value of $400

The rest of Inside Bitcoin TLV lectures can be found here: Inside Bitcoins Tel Aviv 2014t
I think that it was one of the best Inside Bitcoin conferences ever. Kudos to Meni Rosenfeld.

Updated?

General comments now Guy on what you think is going to happen in the next few months?

* Edit... Thanks for the answer.

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[Guy Corem]

My predictions, three months ago: Bitcoin TLV `14, #25 - Guy Corem - Mining Forecast
BitFury revealed their mining address two days afterwards. I didn't expect to see AntPool grow so much.
Let's see how the rest of my predictions will be in 2015. It was based of BTC value of $400

The rest of Inside Bitcoin TLV lectures can be found here: Inside Bitcoins Tel Aviv 2014t
I think that it was one of the best Inside Bitcoin conferences ever. Kudos to Meni Rosenfeld.

Updated?

General comments now Guy on what you think is going to happen in the next few months?

I believe I have good visibility, however I can't give specifics due to NDAs, investors relations, etc.

Guy

[Guy Corem]

Congratulations to Colu, another Israeli Bitcoin company that got funded: http://www.coindesk.com/colu-2-5-million-funding-colored-coins/

Guy

[iCEBREAKER]

add another vote from me to Spondoolies - very impressed with their equipment, service and support

Thank you. Unfortunately the poll suffered unexplained untimely death.

Guy

It wasn't one "poll."  It was five polls.  In five separate threads.  All posted by the same person.  Because you paid him.

And the explanation is simply that "spam will be deleted."

Offtopic.

No, you are wrong.  All posts by Spondoolies-Tech "are automatically on-topic regardless of their content."

Posts by an equipment manufacturer or their staff in a thread about that manufacturer are automatically on-topic regardless of their content. (If they want to make a fool of themselves thats something everyone would find interesting)

[klondike_bar]

You don't need water cooling to have quiet. You just need to stop designing for maximum density. Spread the chips out and use nice quiet slow big fans. That's really all water cooling is.

If the SP20 was twice as large (same number of chips, without putting 2 chips in line of the airflow) it would run much better and quieter with 2 fans.

^very true. unfortunately the shipping size/weight=cost would be about 50% more. In any case the SP20 is quite reasonable when its running at 1200GH or less.

[Biffa]

You don't need water cooling to have quiet. You just need to stop designing for maximum density. Spread the chips out and use nice quiet slow big fans. That's really all water cooling is.

If the SP20 was twice as large (same number of chips, without putting 2 chips in line of the airflow) it would run much better and quieter with 2 fans.

^very true. unfortunately the shipping size/weight=cost would be about 50% more. In any case the SP20 is quite reasonable when its running at 1200GH or less.

I wonder what the comparison of the shipping size/weight/cost of changing the specs of a SP20 to run cooler would be compared to adding the weight of water blocks, tubing and radiators to the box? More if its a sealed system with included liquid.

[Newar]

[...]
unfortunately the shipping size/weight=cost would be about 50% more.
[...]

Not necessarily. If they use the Intel/AMD spacing and sell it without coolers. Similar to the Habaneros and some of the KNC (IIRC). That would allow us to use coolers we have "laying around" or source locally and actually would reduce shipping costs.

[dogie]

Spondoolies-Tech any chance of a water cooled miner in the future?
I really don't want to buy an s5 to upgrade it with watercooling!

+1 !!! The more silent the better for me !

A watercooled SP20 would be awesome !

'Dual sided' PCBs don't play well with blocks as you'll have to make either a really weirdly shaped one for each board or individual ones for each chip. And then you still have the problem that those board components require airflow, which they won't get due to the jungle of waterblocks. Would be interesting to see but I think a different layout would be easier to work with.

And would a $600 SP20 still be awesome if its water cooled? Adding in watercoolings ads in costs across the board unfortunately.

You don't need water cooling to have quiet. You just need to stop designing for maximum density. Spread the chips out and use nice quiet slow big fans. That's really all water cooling is.

If the SP20 was twice as large (same number of chips, without putting 2 chips in line of the airflow) it would run much better and quieter with 2 fans.

I agree with the sentiment on spreading chips out, in every product other than the SP20 though. The SP20 has other issues / coexisting hurdles required to get it silent at stock speeds which wouldn't necessarily be solved with a decrease in density. On the SP10, SP30, SP31, SP35 though, almost certainly. Of those only the SP10's fans were actually loud, everything else was PSU noise from using 1U PSUs.

[MrTeal]

You don't need water cooling to have quiet. You just need to stop designing for maximum density. Spread the chips out and use nice quiet slow big fans. That's really all water cooling is.

If the SP20 was twice as large (same number of chips, without putting 2 chips in line of the airflow) it would run much better and quieter with 2 fans.

I agree with the sentiment on spreading chips out, in every product other than the SP20 though. The SP20 has other issues / coexisting hurdles required to get it silent at stock speeds which wouldn't necessarily be solved with a decrease in density. On the SP10, SP30, SP31, SP35 though, almost certainly. Of those only the SP10's fans were actually loud, everything else was PSU noise from using 1U PSUs.

Which other issues do you think the SP20 has that would cause decreased density to not allow it to become silent?

[Guy Corem]

You don't need water cooling to have quiet. You just need to stop designing for maximum density. Spread the chips out and use nice quiet slow big fans. That's really all water cooling is.

If the SP20 was twice as large (same number of chips, without putting 2 chips in line of the airflow) it would run much better and quieter with 2 fans.

I agree with the sentiment on spreading chips out, in every product other than the SP20 though. The SP20 has other issues / coexisting hurdles required to get it silent at stock speeds which wouldn't necessarily be solved with a decrease in density. On the SP10, SP30, SP31, SP35 though, almost certainly. Of those only the SP10's fans were actually loud, everything else was PSU noise from using 1U PSUs.

Which other issues do you think the SP20 has that would cause decreased density to not allow it to become silent?

This will be interesting. Can't wait for Dogie reply 

[mavericklm]

Doesn't matter his response, what matters is: is there any chance of watercooled Spondoolies miner?!?!?!

[Guy Corem]

Doesn't matter his response, what matters is: is there any chance of watercooled Spondoolies miner?!?!?!

Not with our 2nd gen hardware.

[MrTeal]

Doesn't matter his response, what matters is: is there any chance of watercooled Spondoolies miner?!?!?!

There are significant challenges to a watercooled SP20.

Primarily, I'm too busy to set it all up.

[mavericklm]

Thank you both!!!

[Biffa]

Doesn't matter his response, what matters is: is there any chance of watercooled Spondoolies miner?!?!?!

There are significant challenges to a watercooled SP20.

Primarily, I'm too busy to set it all up.

Cable ties are your friend

[Guy Corem]

Philipma1957 poll is back: https://bitcointalk.org/index.php?topic=938256.msg10280044#msg10280044, despite Dogie's wrong doing.
Thanks to Biffa

I have my doubts: https://bitcointalk.org/index.php?topic=938256.msg10289670#msg10289670

[lulu2003]

I got my Delta AFB1212SH fans (0.8amp) 15 minutes ago and it seems they are the right  ones for underclocked mining in winter time?!

only speaking of PWM fans, because fan control is a MUST in my opinion.

best fans before I tested were the 1amp fans from Antminer S3. they are very okay at 50% and below.

I did a lot of measurements in the past 1-2 weeks I try to sum up:

PWMs tested:

- sp20 original 2amp: very noisy, high CFM
- bitmain s1 1amp: lot quieter at low pwm%
- bitmain s3 1amp: even quieter but only at low pwm%
- noctua 3000 0.3amp: very quiet at low pwm% but not enough CFM for >1200 GH or summer time.
- some case fans like artic F12 0.3 amp and below claimed 80 CFM never ever, only okay for below 1000 GH
- Delta AFB1212SH fans (0.8amp): best up to now


I did db testings roughly 2 meters distance
my server PSU is not the quitest, it adds at least 44 db, I think PC PSUs with 12mm fans are better.

highest rating was sp20 stock fan at 68


all tests in room at 22c ambient

Code:

db      pwm     fan
----------------------------
68	100	org fan (2amp)	full power taifun mode, still hear it through 2 closed doors and rooms
56	10	org	
44	0	org (only my PSU)	
50	10	s1 fan	
58	100	s1 fan	
50	6	s1 fan reverse	

51,5	40	s3 fan rev	
48	20	s3 fan rev	
46	6	s3 fan rev	low 900 gh
48,3	20	s3 fan rev	

45,5	40	noctua 3000
47,2	61	auto mode
48	80	auto getting hot
46,2	64	PSU covered
52	100	reboot
53	100	Noctua reversed

44,8	40	Delta 1212SH 0,8A
45,5	50	Delta 1212SH 0,8A okay for 1100 GH
47,8	90	max auto mode, I think only good for below 1300 GH at 22c ambient			
	

I doubt that air cooling will be less noisy...keep in mind that for extreme conditions you need fan cooling power, probably that 2amp, and this is noisy.

may be stacking 2 Deltas may be an option to try for some more cfm???! there is room as they are only 25mm compare to 38mm depth like stock and bitmains

[Biodom]

I got my Delta AFB1212SH fans (0.8amp) 15 minutes ago and it seems they are the right  ones for underclocked mining in winter time?!

only speaking of PWM fans, because fan control is a MUST in my opinion.

best fans before I tested were the 1amp fans from Antminer S3. they are very okay at 50% and below.

I did a lot of measurements in the past 1-2 weeks I try to sum up:

PWMs tested:

- sp20 original 2amp: very noisy, high CFM
- bitmain s1 1amp: lot quieter at low pwm%
- bitmain s3 1amp: even quieter but only at low pwm%
- noctua 3000 0.3amp: very quiet at low pwm% but not enough CFM for >1200 GH or summer time.
- some case fans like artic F12 0.3 amp and below claimed 80 CFM never ever, only okay for below 1000 GH
- Delta AFB1212SH fans (0.8amp): best up to now


I did db testings roughly 2 meters distance
my server PSU is not the quitest, it adds at least 44 db, I think PC PSUs with 12mm fans are better.

highest rating was sp20 stock fan at 68


all tests in room at 22c ambient

>snipped code<

I doubt that air cooling will be less noisy...keep in mind that for extreme conditions you need fan cooling power, probably that 2amp, and this is noisy.

may be stacking 2 Deltas may be an option to try for some more cfm???! there is room as they are only 25mm compare to 38mm depth like stock and bitmains

Great data, and very useful, maybe I will try Noctua on Sp20.
However, this is not the delta most people use. This one is 25mm vs more typical 38mm, but has the advantage of being quieter.
However, i am not sure how did you get PWM working on SP20.
Did you get an adapter for the non-standard connector on Sp20? If yes, please post a link to it.
Thanks

[Biffa]

i think if you could wire a PWM connector to the SP-tech connector you could turn it into an adapter.

[lulu2003]

thanks!

I would like to try a 38mm PWM Delta, but I doubt they will be quieter than the 1amp "JDH1238B" (also 38mm) I took from the S3.
These bigger Deltas are most commonly server fans with high cfm and they don't care about noise.
If someone can point me to a 38mm PWM 12V Delta with not more than 1 to 1.2 amp, I appreciate.

the probably 1:1 fitting connectors 1.5mm spacing (I posted an ebay link) are still on the way from china to me, because I could not find another source.
In the meantime I cut the original fan wires and inserted a standard fan connector, only way not to touch the controller board.