Spondoolies SP20E. One impressive miner 0,526 W/GH

[dmwardjr]

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!   

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[chicagoleo]

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

[bitblazing]

Wonderful setup man!

[takagari]

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.

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

[Xircom]

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.

[dmwardjr]

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.

[hollowtm]

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!

[dmwardjr]

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!

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://bitcointalk.org/index.php?topic=872014.0

[alh]

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!

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.

[Biffa]

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!

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.

[dmeter]

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.

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 .

[Xircom]

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.

[Borgminer]

My 35 pcs SP20E farm is now running 40.8 TH at Slush. They have been running for a week now and all with down-clocked to 600-650 Watt giving from 1150 to 1212 Ghash and Extreme Stable.
Giving me a 0,55 W/GH and thats pretty nice.

Next step for my SP20E farm will be 1330-1350 Ghash with a wattage pr miner of 811-825 Watt, giving me total 47 TH and 0,60W/GH... if price goes even higher up, third step is going to be
1470-1490 Ghash with a wattage of 1010-1025 Watt = 0,68 W/GH

There is still head room to push them up to 1650 Ghash a pcs total, but much higher Wattage

All 3 steps has been tested and optimized, written down for all 35 miners with WattMeter in the wall.

Finally, some mining Porn :-)

thats insane .  big baller setup