Topic: Spondoolies SP20E. One impressive miner 0,526 W/GH (Read 6617 times)

thats insane .  big baller setup

Its going to be packed down next week to be shipped out to the Artic and make room for the big scrypt farm setup, before this is also going to be shipped out after configuration.
Its only the mining gear that is going to be shipped out, not the shelfs.

whay you don use KNAUF FIREBOARD or similar product.this wood is to danger for fire.
I for my project in atic i use  Knauf GKF BOARD .

Its not just about settings, to achieve 1.6TH+ you need to max out the 4 PSU power settings to 288, leaving the rest at default.

Then you have to crank the fans up to 100% and have sub 20° input temps, and watch the ASIC Stats page, if the temps hit near 120°C they will probably throttle back and you will lose hash rate.

So you have to have a few things:

1. Correct settings (288W)
2. Ear protectors (100% fans)
3. Sub 20°C Ambient intake temps (Lower the better)

Lastly make sure you have VERY good PSU's such as EVGA 1300G2 or Server grade PSU's with decent grade wiring.

I think you'll find that 1.4Th is pretty good for an SP20. You might well get another 150 GH/s, but it's generally felt that the advertised number of 1.7Th is generally not going to be realized. The basics for maximum speed are all the "Settings" tab. I don't think there is much magic beyond setting the "Voltage Limit" to the 0.790 value, and the "Max PSU" value to 288 for each of the 4 loops. Obviously the Fan then needs to be at 100. I have  seen a "Basic Settings" button that then lets you choose from 3 "combinations". There is one combination called "Turbo Fans, Highest Rate". While I haven't used that, I would bet it just maxes out the values.

Make sure you have a high quality power supply setup (1200+ Watts) with 4 high quality cables and PCIe connectors. The quality won't influence your rate much, it's just important if you don't want something to melt. Also make sure you have a cool environment (say 15-20C), cause everything will get warm.

Don't forget the ear plugs, but I expect you know that already.

I just got my SP20's and doing taxes at the moment.  I haven't taken the time to look into how fast they can go but I'm sure you can find it in the following thread.  They start out under clocking in this thread.  https://bitcointalksearch.org/topic/unofficial-spondoolies-sp20-thread-872014

Does anyone know the best settings to generate the highest hash for these? I have a few sp20e and they are averagely hashing about 1.400. I have a set price for electricity so it doesn't matter how high my voltages are. Any recommendations will be nice! Thanks!

Good choice on changing out the PSU's, Xircom:  Like your setup, M8!!!

This picture shows the exhaust temps if you are wondering why my rigs are so close together.  That is not the intake temperature.  That is the exhaust temperature.  The ambient intake temperature is 60 degrees Fahrenheit.  I may separate them during the summer but no need to at the moment.  All temps are fine in the rigs.



The next two pictures show you how I hung the IBM 2880W PSU's with tie wraps to keep them off of the SP20's.  





I have more Corsair AX860's to replace with IBM 2880W PSU's.  I have 10 more 2880W's with breakout boards.  Don't mind the mess.  I'm still working on this mining closet.  The rigs have been in this new closet less than 60 hours now.

Don't mind the black paint on the wall.  That's where I had painted my iron spindles for my staircase.  I'm painting this wall anyway.  So, I figured why not paint them here.  It was raining the day that I wanted to get the spindles painted.  I didn't feel like waiting so I painted them against this wall before this closet was ever built here.

The orange cable hanging down is 10/2 wiring for another 240 Volt/30 Amp outlet.  I'm preparing for another PDU and more rigs.  I will clean up the wiring when I finish my taxes.  Corporate taxes are due March 15th.



What the closet looks like from the outside:

Don't mind the mess.  That has been cleaned up since I moved the rigs inside.  The rigs inside the closet now are in front of these grilles in this door.  I will not put more grilles in the other doors until more rigs are put in this closet.



You can see the trim I put at the top near the ceiling and the trim at the base against the floor.  Now I'm ready to caulk, prime and paint.  After that, the electrical needs to be run into the closet.

Im changing my EVGA Super Nova G2 to IBM PSU 2900 Watt + breakout board.
These PSU`s are 95% efficient and able to run 3 downclocked SP20 at 1.35 -1.40 TH each, so 60,-$ for a refurb PSU + 60,-$ for Breakout board + 3,-$ pr cable and Im able to save roughly 220,- $ on a 3 miner setup.
When my 36 Scrypt miners arrives next friday im able to run 4 x 110 Mhash scrypt miners from same PSU.
I have already ordered extra 9 IBM Blade PSU`s + breakout boards for this setup.
I will make an update about how this project goes when finished doing the setup.
Total it will leave me using 31.500 Watts for the SP20`s and 21.600 Watts for the Scrypt miners, total 53.100 Watts. Giving me total:
 - 50 TH sha256
 - 4000 Mhash scrypt.
Project is growing and im looking out for the new 16nm Sha256 miner coming out this fall to increase the sha farm with extra 100TH or more.

Sorry for the messy pics, but all is going to be packed down and shipped to another country for cheap power as soon as im finished approving all PSU`s and Breakout boards.

Which power supplies are those?
That's pretty much exactly what I would like to do, they'd run cooler, leave room for more, less wires. haha.
Is she aware your posting pics of her here? lol

Wonderful setup man!

Thanks bud, Ya everything is running good time to start making plans for the next rack

Nice setup, chicagoleo!  Nice helper too!  My wife is very supportive of mining bitcoin as well.  In fact, she's will to move from Alabama to Washington State for cheaper power costs.  Your girl friend is a keeper, chicagoleo!  Don't let go of her.  Put a ring on it!   

For me it looks more real to meet such a wonderful woman than to obtain such quantity of SP20(E)s... So I don't need such diesel generator... 

something is wrong with me, i look more impres because of the back-up generator in the back )))))

nice rack of miners!!!

Impressive...  

So the main point in crypto-mining is to choose right girlfriend?..

70+TH
One thing I noticed, much better to throw the hot air 10 feet away than into a wall 2 feet away. (Also notice the box fans only to blow air over the ps, without airflow they get hot)

And derate your conduit!  I used 10awg wire for the 20amp circuits instead of 12awg, which derates to code.  42 x 20amp,
 120v, dedicated 3 phase208 sub, networked neutral.

http://i60.tinypic.com/i1bl2f.jpg

Here is a good pic of the ps mod up close

http://i59.tinypic.com/2zh4daa.jpg
http://i59.tinypic.com/effgp2.jpg

And make sure you have a good helper

http://i58.tinypic.com/2ai07k.jpg


The hot side
http://i61.tinypic.com/2s9bo8p.jpg

Hello all,

I used the HP DPS1200FB

Soidered on a 1k risistor
And 4 x 16awg PCI connectors

Total price per ps 31 bucks

Oh, Plus added rubber feet from Home Depot so that's another 20 cents ea

On topic if you underclock them and have a cool ambient temperature, you can set the sp20 at fan speed 20 ( normal set at 80 )
The difference between 20 and 80 is huge, i think the noise is now around 72 db
With the fan at 80 it sounds like a small airplane
At startup it goes full speed maybe someone with a good camera can record that
Its ofcourse still audible but absolute a lot less, it seems someone cut the metal in front of the fan away and that made a huge difference in noise as well

Agreed on that yes they cost often more than the psu cost at least the ones being sold each time being replaced.
Our firm replaces the psu's almost every 2 years just to make sure, the ones coming out of these server will work many years flawless, hell i had one for almost 11 years and it still works.
Ofcourse with the much higher efficiency its ofcourse wise to replace them from silver or lower into the better ones.
But i found out some of them rated being 80+ silver (ibm and antec) still beat my brand new platinum psu's
Back on the breakout boxes they do work pretty nice especially the heavy psu models they can feed so many smaller miners its almost insane
My mate uses 2000BB psu's to feed his scrypt-n/x (11,13,15) gpu rigs if you see all those cables coming from just one psu you think omg what!!! all those on 1 psu.
And it all looks nice and tidy with the breakout box