[Guide] Dogie's Comprehensive SpondooliesTech SP30 Setup [HD]

[Marvell1]

@marvell1

That is a misconception.

What matters is $/GH and operational costs aka $/GH/m.

Increasing the hashrate lowers $/GH and can lead to a faster ROI, especially if your $/GH/m is low (aka 5ct/kW/h including hosting).

hmm thanks for the information I might have to rethink things then

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[jowaybea]

@marvell1

That is a misconception.

What matters is $/GH and operational costs aka $/GH/m.

Increasing the hashrate lowers $/GH and can lead to a faster ROI, especially if your $/GH/m is low (aka 5ct/kW/h including hosting).

hmm thanks for the information I might have to rethink things then

Just look at the difference between your numbers:

at 4.1 TH at 2600WATT actually running the numbers provides a better hash/Watt number than 4.5 TH at 2900WATT

you gain 400GH @ an extra cost of 300W.  That's still only 0.75W/GH, which, unless you have some crazy expensive electricity/hosting rates, is worth mining for a long time to come.

[Marvell1]

I was planning on using two separate outlets on different breakers thats not a problem running the numbers honestly running an SP30 at 4.1 TH at 2600WATT actually

 running the numbers provides a better hash/Watt number than 4.5 TH at 2900WATT, not sure what all the big deal with maxizing the hash ratio to all ends is.  Hash/Watt

is what matters in the end.

If you already have 2 circuits installed, then just buy the cables with the correct ends, and you should be good to go.  Honestly though, even at 3kW, you're not to go over 12-13A @240v, which is perfectly safe on a 20A circuit.

Find the plug that matches your recepticles:

http://smile.amazon.com/SF-Cable-NEMA-L6-20P-250V/dp/B009ZERV72

http://smile.amazon.com/6-20P-Power-Cord-Adapter-Foot/dp/B00H7JR636/

This one already has 2xC13, so you'd be good to go.
http://smile.amazon.com/L6-30P-C13-Splitter-Power-Cable/dp/B00BGAEBNU/

And of course you can easily get C13-C14 extension cables wherever (online...Don't expect to find them at Ace Hardware).  Though I would be sure to get those cables rated for 250v & at least 15-20A.

As to the W/Hash ratio, that is what matters "in the end" only so much as you are talking end of life of your hardware.  As RoadStress said after the difficulty is >70B.  Until then, maximize your hash rate as much as you safely can.

Thanks a lot for this info and no I don't have the plugs yet I figure I can grab a 30AMP plug from home depot or something. I Initially planned on getting two new 30AMP

circuits installed  for $700  but with with the lesser hash rate than I expected on the SP30 (4.5TH vs close to 6TH) I decided to pass on those until I am able to purchase a

second sp30 or some S3s.   For now  I was planning on stealing from 30A 240V my dryer during uses the week and then on Saturday when the dyer is in use I have a

couple of 20AMP 120V outlets on separate breakers to power the SP30 until Sunday when the 30AMP 240V circuit is available again.

Thanks as well RoadStress for the that info on the diffuclity.  Btw are we projected to reach 70Bill around April of next year ?

[dogie]

GHash IO

Really?

... what?

[dogie]

If you were unhappy with the noise from a SP10 is it pretty safe to assume you will still be unhappy with a SP30 in warm ambient temps?

Not necessarily, its close enough that it will very much depend on who you're worried about being unhappy with the noise. It will really come down to your specific situation, and whether you can close doors etc.

Any chance you could post an audio clip of the unit hashing? Perhaps a comparison of the 2?

I no longer have either unit, but I've specifically removed all reference to noise levels in terms of dba ratings and any records from new guides. Its too subjective, and dba levels just don't represent the actual noise that you end up with. Two miners @ 55 dba can sound and behave totally different.

I could also record the SP10 on my phone, and on my camera and on my headset, then play them back to you. They'd sound totally different. Similarly, depending on how you play them back, they'd sound very different.

[jpass022]

Any info on the fans in the SP30? model#?

[Collider]

Any info on the fans in the SP30? model#?

If you are asking because of noise, the PSU fans are what creates most of the noise in these units.

The sp30 is a little less loud than the sp10, and the sound quality is very different, it is less of a high-pitched whine.

[dogie]

Any info on the fans in the SP30? model#?

If you are asking because of noise, the PSU fans are what creates most of the noise in these units.

The sp30 is a little less loud than the sp10, and the sound quality is very different, it is less of a high-pitched whine.

This. I couldn't remove one of the fans without removing all the ASIC boards, but the fan noise of the actual unit is literally irrelevant unless you ram them up to 100% for which there is no need at all.

[jpass022]

Any info on the fans in the SP30? model#?

If you are asking because of noise, the PSU fans are what creates most of the noise in these units.

The sp30 is a little less loud than the sp10, and the sound quality is very different, it is less of a high-pitched whine.

This. I couldn't remove one of the fans without removing all the ASIC boards, but the fan noise of the actual unit is literally irrelevant unless you ram them up to 100% for which there is no need at all.

I have found that miners never have the best CFM fans for their particular size. I'm not worried about noise. More concerned about performance. Average CFM for 80 mm fans seems to be in the 50's range. I have found 80mm fans with significantly higher CFM... I guess i'll inquire with Spondoolies. Thanks for trying...

[dogie]

Any info on the fans in the SP30? model#?

If you are asking because of noise, the PSU fans are what creates most of the noise in these units.

The sp30 is a little less loud than the sp10, and the sound quality is very different, it is less of a high-pitched whine.

This. I couldn't remove one of the fans without removing all the ASIC boards, but the fan noise of the actual unit is literally irrelevant unless you ram them up to 100% for which there is no need at all.

I have found that miners never have the best CFM fans for their particular size. I'm not worried about noise. More concerned about performance. Average CFM for 80 mm fans seems to be in the 50's range. I have found 80mm fans with significantly higher CFM... I guess i'll inquire with Spondoolies. Thanks for trying...

They'll be way, way, higher. But CFM isn't everything, you need to read up about some fluid dynamics and pumps.

There are two metrics, both equally important but they trade off each other. Pressure (or head/static pressure) and CFM (flow rate or similar). Server fans require a significant static pressure in order to overcome the large tunnel of air in front of them, its not as simple as thrashing about as much air as possible.

[jimmothy]

The fans are quite powerful for 80mm at 100cfm

Fans datasheet

[jpass022]

The fans are quite powerful for 80mm at 100cfm

Fans datasheet

Thanks for the info... Glad to see Spondoolies went with the high end fans. I don't need to think about upgrading those...

Thanks for your comments on Fluid Dynamics as well Dogie...

I've dropped chip temps in several different miners 20 to 30 deg. C just by upgrading the fans that they came with with the same ambient temp...

[d2dtk]

Although I do not have this miner I find that your guides are always thorough and easy to understand. Keep up the good work!

Oh, and do you get any of these machines for testing purposes or do you have to buy them out of pocket?

[dogie]

Although I do not have this miner I find that your guides are always thorough and easy to understand. Keep up the good work!

Oh, and do you get any of these machines for testing purposes or do you have to buy them out of pocket?

Its a mixture, this one was purchased.

[bobsmoke]

Hello Dogie,

Two questions regarding the SP30:

Does it bring power cables?
Does it bring an ethernet cable?
Are the mounting ears robust enough?

Thx

[dogie]

Hello Dogie,

Two questions regarding the SP30:

Does it bring power cables?
Does it bring an ethernet cable?
Are the mounting ears robust enough?

Thx

No power or ethernet cables (hence they're in the what you need to get started section), mounting ears are fine. There are two rear stabilisers as well and SP30s aren't that heavy due to being 2U.

[bbeesley]

what is the purpose of the micro SD, USB and serial interface?

[dogie]

what is the purpose of the micro SD, USB and serial interface?

Micro SD allows the unit to 'auto' update from firmware file on an mSD, serial allows 'force fed' update. I believe USB is/was intended for beta wifi dongle but its not ready yet.

[chitolsp]

Box size and weight?

[dogie]

Box size and weight?

Its in the OP

The shipped weight of a SP30 is 16kg, dimensions of the shipping box are 750 x 600 x 160mm