Launching a 6000 mh/s ethereum farm. Q&A Thread!

bctopics

@kotarius

What power strips did you use? How many amps/watts can they handle?

kotarius

We are using AP7941, they are rated for 30A at 240V. Running at 80% of rated load is about 5760W per strip.

bctopics

kotarius said:

We are using AP7941, they are rated for 30A at 240V. Running at 80% of rated load is about 5760W per strip.

Nice! Good choice as well, good stable/cheaper product.

What do you plan to do when POS hits? Do you plan to be a stake holder with this farm? Mine something else?

techtot

did you ever say what state you were in? Power rates seem reasonable..

kotarius

Missouri.

kotarius

Farm half up, http://ethos1.ethosdistro.com

Pics updated: http://ethosdistro.com/farm/

kristofferjon

kotarius said:

Farm half up, http://ethos1.ethosdistro.com

Pics updated: http://ethosdistro.com/farm/

Congratulations, looking good

TimboSlice

Are you solo or pool mining?

kotarius

TimboSlice said:

Are you solo or pool mining?

Pool mining.

GreaterNinja

Those zip ties might break or crack. I've ran a mine about your size before and the heat would dry the plastic out. I recommend Velcro strips.

GSTSeattle

If you had it to do over, would you still use the R9 290? Or would you use the RX480? Do you have a good source for this card you could recommend? Thanks!

garrett92895

@GSTSeattle I imagine he would do it on whatever card he already had in stock. He also mentioned that he is planning on transitioning to using more power efficient cards

mjaaay

Hey @kotarius , any reason why you're not using the H81 motherboards and connect 6 GPU per rig?

kotarius

@mjaaay We already had 1000W PSUs and 990FXA boards in stock from earlier this year, we did not buy new hardware for this farm.

mjaaay

kotarius said:

@mjaaay We already had 1000W PSUs and 990FXA boards in stock from earlier this year, we did not buy new hardware for this farm.

Ah I see, thanks for the answer!

work

@kotarius definitely a cool project. Thanks for posting about it. Looking forward to seeing some numbers once it's completed.

punkshoo

@kotarius Looking really good so far. Cant wait to see your real-world hashrate. This gives us dreamers something to dream about.

kristofferjon

punkshoo said:

@kotarius Looking really good so far. Cant wait to see your real-world hashrate. This gives us dreamers something to dream about.

http://ethos1.ethosdistro.com/

kotarius

The shelving was bought from Metro and Olympic wholesale suppliers.

kotarius

http://ethosdistro.com/farm/ Flashing to Stilt's bios resulted in a dramatic temperature and power usage drop.

charles2k

Where to find this version Stilts Bios? I have some Sapphire R9 290X reference cards with Hynix mem.

mmx

kotarius said:

http://ethosdistro.com/farm/ Flashing to Stilt's bios resulted in a dramatic temperature and power usage drop.

1175 = 1.175mV?

Protip: running atiflash with "-pa" as opposed to "-p 0" will flash all matching cards in the system.

# atiflash -f -pa

patrik2

To be safe, I prefer flashing GPUs one by one:

atiflash -f -p 0 vbios.rom
...
atiflash -f -p 2 vbios.rom

But if you need to flash 200 of them, better to flash all of them at ones, per each rig

kotarius

Even though it was slower, we did it one by one, to make sure not to brick any GPU.

frogman

kotarius said:

Even though it was slower, we did it one by one, to make sure not to brick any GPU.

So what is the total power output on the wall?

kotarius

Video uploaded http://ethosdistro.com/farm/

audio db of video reduced by 30.

I will take measurement of power directly from the PDUs, and graph it later.

kristofferjon

kotarius said:

Video uploaded http://ethosdistro.com/farm/

audio db of video reduced by 30.

I will take measurement of power directly from the PDUs, and graph it later.

Very nice.

kristofferjon

The video is not displaying, error message displays instead.

mjaaay

Amazing video, thank you so much for the updates!

What's the cheapest 1000w for 6x 470 4GB you guys can recommend?

Bravia

congratulations ! fantastic ! Perfect !
what is your VGA ?