The Chili – 30+GH/s BFL based Bitcoin Miner Assembly - page 59.

crazydownloaded

full member

Activity: 148

Merit: 100

Crazy!

Quote from: MrTeal on October 21, 2013, 08:16:04 PM

I'm a bit of a hardware geek so I'm a bit biased, but I'd much prefer to have hardware in my hands than any kind of purchased hashing power setup.
Much like your BTC, if you do not have possession of it you do not really own it.

Go back a bit over a year, and how many of the hashing power by the GH/s bonds are still around? GigaVPS is still paying dividends, but retroactive forced an at-your-cost verification process and changed the perpetual bonds into single year bonds. The majority of the rest took the opportunity of GLBSE closing to cut and run.

There are so many things that can go wrong with these scenarios from straight fraud to government regulation changes to the medium of exchange shutting down that comparing having hardware in hand vs having the promise of someone else continuing perpetual payments and not screwing you/quitting/getting hit by a bus on a straight $/GH/s basis isn't a proper comparison.

I totally agree, it's a risky approach. I like to diversify my portfolio. Personally I will definitively keep my own hardware + do some trading on their service.
They own like 19% of the total network power, so I guess the risk is somewhat limited, they must have some big money behind them.
What I like with their service is "infinite compound interest". I can buy more power as soon as I'm paid for a block.

ChipGeek

full member

Activity: 198

Merit: 100

Quote from: nexus99 on October 21, 2013, 08:33:54 PM

Fired up my first Chili. Its hashing at 30 GH/S. Anyone have any thoughts how to squeeze 5 or 6 more GH/s out of the unit?

As others have said, cooler = faster. The back of the power regulator area is a good place to keep things cool also.

djjacket

hero member

Activity: 784

Merit: 501

Quote from: nexus99 on October 21, 2013, 08:33:54 PM

Fired up my first Chili. Its hashing at 30 GH/S. Anyone have any thoughts how to squeeze 5 or 6 more GH/s out of the unit?

Get some extra fans blowing on the back of it to see if you can cool it more. My coolers are working the top of the chips well, but the back of the board is where the heat is for mine. Try a box fan and see if the firmware takes advantage and pumps up the hashing speed.

Keefe

hero member

Activity: 681

Merit: 500

Quote from: nexus99 on October 21, 2013, 08:33:54 PM

Fired up my first Chili. Its hashing at 30 GH/S. Anyone have any thoughts how to squeeze 5 or 6 more GH/s out of the unit?

Blow more air on the board itself, especially the backside.

nexus99

legendary

Activity: 910

Merit: 1000

Fired up my first Chili. Its hashing at 30 GH/S. Anyone have any thoughts how to squeeze 5 or 6 more GH/s out of the unit?

ryanb

legendary

Activity: 1148

Merit: 1000

with the hardware in hand if any sha coin becomes more profitable than btc you can switch your miners to the new coin

and you are in control

MrTeal

legendary

Activity: 1274

Merit: 1004

I'm a bit of a hardware geek so I'm a bit biased, but I'd much prefer to have hardware in my hands than any kind of purchased hashing power setup.
Much like your BTC, if you do not have possession of it you do not really own it.

Go back a bit over a year, and how many of the hashing power by the GH/s bonds are still around? GigaVPS is still paying dividends, but retroactive forced an at-your-cost verification process and changed the perpetual bonds into single year bonds. The majority of the rest took the opportunity of GLBSE closing to cut and run.

There are so many things that can go wrong with these scenarios from straight fraud to government regulation changes to the medium of exchange shutting down that comparing having hardware in hand vs having the promise of someone else continuing perpetual payments and not screwing you/quitting/getting hit by a bus on a straight $/GH/s basis isn't a proper comparison.

btchedge

member

Activity: 92

Merit: 10

Quote from: crazydownloaded on October 21, 2013, 06:16:16 PM

For information, I think buying hashpower on https://www.cex.io is cheaper (and more convenient! you don't have to pay for electricity, not handle the noise or anything) than buying a Chili.
And also easier to sell if you want to...
(32GH/s = 4.16 BTC at the current price (0.13 BTC/GH/s), ie $748 at the current Bitstamp exchange rate ($179.80))

My referral link if you want to: https://cex.io/r/0/crazydownloaded/0/ (I'd get 1 GH/s if you deposit >=1 BTC)

One last thing. It appears GH are selling for .13 BTC or $23.27 per GH/s. I am very happy with the boards form MRTeal and ChipGeek but actually have some I am planning to sell. I am willing to sell 10 that I have in hand and include the pre-installed Twin Turbo VGA cooler and PCI bracket for my cost (about 4.4BTC).

If anyone will pay over the 4.4 BTC I will donate 100% of the profit back to MrTeal and ChipGeek as a thank you for their hard work. PM me or make offer on this thread.

crazydownloaded

full member

Activity: 148

Merit: 100

Crazy!

Quote from: btchedge on October 21, 2013, 07:23:03 PM

Actually, here is what the site says...

"How can a GH/s be owned forever considering electricity costs and other fees?

Maintenance fees will be set per GH/s to electricity costs and datacenter fees. It may be adjusted according to the BTC/USD exchange rate because our fees are in fixed USD. If the maintenance fees exceed your mining income, GH/s be sold at current market price to cover fees. CEX.IO MUST buy back sold hashing power at market price to close accounts. At anytime you always have the option to request GHS withdrawal as hardware devices, just contact support to negotiate shipping details."

So it looks like the key unknown variables are... What are the electricity costs? What are the datacenter fees? Finally, I wonder if the way this exchange is set up would be in compliance with FINCEN and SEC regulations that have recently caused platforms to close our stop serving US customers.

I have to say that I am a big fan of bitfury. Really curious to know more about who is behind this service, and what the actual costs are.

Very interresting

The maintenance fee is 0 for the moment: "Maintenance fee: 0.00 BTC (May be changed in the future)" (below the trading chart)

btchedge

member

Activity: 92

Merit: 10

Quote from: crazydownloaded on October 21, 2013, 06:51:03 PM

Quote from: btchedge on October 21, 2013, 06:45:09 PM

What do they charge for electricity and maintenance fees?

Nothing yet, to my knowledge (I discovered this service today):
"1 GHS = 1 GH/s delivered INSTANTLY. All mining power is handled by GHash.IO (0% pool fee). Maintenance fee: 0.00 BTC (May be changed in the future)"

In fact they merge-mine NMC to cover their pool fees, but nothing is said about electricity (I doubt NMC covers electricity). Maybe it's like a "perpetual contract" or something.

Actually, here is what the site says...

"How can a GH/s be owned forever considering electricity costs and other fees?

Maintenance fees will be set per GH/s to electricity costs and datacenter fees. It may be adjusted according to the BTC/USD exchange rate because our fees are in fixed USD. If the maintenance fees exceed your mining income, GH/s be sold at current market price to cover fees. CEX.IO MUST buy back sold hashing power at market price to close accounts. At anytime you always have the option to request GHS withdrawal as hardware devices, just contact support to negotiate shipping details."

So it looks like the key unknown variables are... What are the electricity costs? What are the datacenter fees? Finally, I wonder if the way this exchange is set up would be in compliance with FINCEN and SEC regulations that have recently caused platforms to close our stop serving US customers.

I have to say that I am a big fan of bitfury. Really curious to know more about who is behind this service, and what the actual costs are.

nanook7

newbie

Activity: 48

Merit: 0

I have some extra BFL chips to sell, don't miss you chance to get them into Mr.Teal's great board
BTC .18 each

https://bitcointalksearch.org/topic/m.3339882

PM with questions

boost75

newbie

Activity: 35

Merit: 0

Selling 2 Chili boards for 3BTC each if anyone is interested.

crazydownloaded

full member

Activity: 148

Merit: 100

Crazy!

Quote from: btchedge on October 21, 2013, 06:45:09 PM

What do they charge for electricity and maintenance fees?

Nothing yet, to my knowledge (I discovered this service today):
"1 GHS = 1 GH/s delivered INSTANTLY. All mining power is handled by GHash.IO (0% pool fee). Maintenance fee: 0.00 BTC (May be changed in the future)"

In fact they merge-mine NMC to cover their pool fees, but nothing is said about electricity (I doubt NMC covers electricity). Maybe it's like a "perpetual contract" or something.

btchedge

member

Activity: 92

Merit: 10

Quote from: crazydownloaded on October 21, 2013, 06:16:16 PM

For information, I think buying hashpower on https://www.cex.io is cheaper (and more convenient! you don't have to pay for electricity, not handle the noise or anything) than buying a Chili.
And also easier to sell if you want to...
(32GH/s = 4.16 BTC at the current price (0.13 BTC/GH/s), ie $748 at the current Bitstamp exchange rate ($179.80))

My referral link if you want to: https://cex.io/r/0/crazydownloaded/0/ (I'd get 1 GH/s if you deposit >=1 BTC)

What do they charge for electricity and maintenance fees?

crazydownloaded

full member

Activity: 148

Merit: 100

Crazy!

For information, I think buying hashpower on https://www.cex.io is cheaper (and more convenient! you don't have to pay for electricity, not handle the noise or anything) than buying a Chili.
And also easier to sell if you want to...
(32GH/s = 4.16 BTC at the current price (0.13 BTC/GH/s), ie $748 at the current Bitstamp exchange rate ($179.80))

My referral link if you want to: https://cex.io/r/0/crazydownloaded/0/ (I'd get 1 GH/s if you deposit >=1 BTC)

btchedge

member

Activity: 92

Merit: 10

Quote from: Bargraphics on October 21, 2013, 12:46:45 AM

Quote from: btchedge on October 20, 2013, 01:12:48 AM

Butterfly Chili Rack

So after trying to fire up the ~60 chilis and feeling the heat coming off them I have got to ask you how your cabinet is handling those hah.

We had to add a 25,000 BTU on top of the 22,000 BTU A/C unit we already had for the room.

Definitely underestimated how much heat these chilis make, the name fits! Tongue

They definitely put off some heat, but it hasn't been to hard to handle. Still working on tweaks. The fans on the chassis should be closer or just ditched and replaced with alternative higher power fans that can pull cold air in the bottom and push it out the top. The most interesting thing is that this entire rack is quieter than a 60GH Single, by far. MrTeal and ChipGeeek did a great job on the boards and they are averaging well over 32GH. By the way it's only 54 boards (6 per chassis).

Bargraphics

hero member

Activity: 518

Merit: 500

Every man is guilty of all the good he did not do.

Quote from: btchedge on October 20, 2013, 01:12:48 AM

Butterfly Chili Rack

So after trying to fire up the ~60 chilis and feeling the heat coming off them I have got to ask you how your cabinet is handling those hah.

We had to add a 25,000 BTU on top of the 22,000 BTU A/C unit we already had for the room.

Definitely underestimated how much heat these chilis make, the name fits! Tongue

jelin1984

legendary

Activity: 2408

Merit: 1004

What will be the other features?

MrTeal

legendary

Activity: 1274

Merit: 1004

Quote from: crazydownloaded on October 20, 2013, 04:01:42 PM

Is there a way to "force" the Chili to a higher target temperature?
My Single SC are running between 72-80°C and I assume that I could get much higher hash rates with higher temperature.
I guess it would require a firmware update or something.

Thanks!

We will be adding that to an updated firmware here in the next little while, along with a few other features.

crazydownloaded

full member

Activity: 148

Merit: 100

Crazy!

Is there a way to "force" the Chili to a higher target temperature?
My Single SC are running between 72-80°C and I assume that I could get much higher hash rates with higher temperature.
I guess it would require a firmware update or something.

Thanks!

Topic: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly - page 59. (Read 137978 times)