20gh/s system, need advise | Bitcointalksearch.org

BitshireHashaway

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Quote from: dogie on May 10, 2013, 07:56:30 AM

You would have been so much better off putting that $15k into buyitnow ASICs or even FPGAs. You're going to have to power and cool 8KW of cards, and with the amount of planning demonstrated so far its going to go terribly wrong Sad

My 26GH system cost the equivalent FIAT today of about $11k, only generates 250W of heat and
sits on my windowsill.

He's trying to mine LTC and the last time I checked Asics don't do too well for LTC if work at all. Though if he was trying to mine BTC, I wouldn't recommend a GPU rig either unless he was planning on switching to LTC once the difficulty jumped.

Amph

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16xHD7990=375wattx16=6kw

you can even go with 15 if they reach 1300 or 14 for 1400(it's possible)

dogie

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Quote from: Amph on May 11, 2013, 02:47:22 AM

Quote from: MinerLT on May 10, 2013, 04:17:23 PM

+ i have 3,5KW solar panels on mine roof.

also the other guy keep saying 8kw, when they are only 5kw(max 6, considering other things) 20 x 250watt

And you are proposing to get 20GH with 20 cards how? The most sensible configuration is 40x7950 = 20GH, $15-16k and 200W per card + overhead. That's pretty conservative, and = 8KW.

seannnyx

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As consume power?

Amph

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Quote from: MinerLT on May 10, 2013, 04:17:23 PM

+ i have 3,5KW solar panels on mine roof.

also the other guy keep saying 8kw, when they are only 5kw(max 6, considering other things) 20 x 250watt

willko

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WOW, x-large cohonas!

What sort of RAM needed for LTC across all those cards?
Whats the mobo to GPU ratio 4/1?

dogie

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Quote from: maxl on May 10, 2013, 05:08:18 PM

Nice.

Which hashrates do you get overclocked. Normal hashrate is ~10 Gh/s?

Rated at 10 but most people seem to be 10.5-11.2. Overclocked is bang on 13.0 for most.

maxl

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Nice.

Which hashrates do you get overclocked. Normal hashrate is ~10 Gh/s?

dogie

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Quote from: dorift_it on May 10, 2013, 04:02:32 PM

technically they pay themselves back within the first 6 months so ROI and profits are possible considering he can always sell the hardware after breaking even and still making profits.

315 days by the best estimates.

Quote from: maxl on May 10, 2013, 04:23:25 PM

Oh. You have won 2 AsicMiner Blades on the auction an have oc´ed them.
Do they use about 130 watts per Blade?

This is what friedcat said and it seems to work out:

Quote from: friedcat on May 09, 2013, 09:48:57 AM

Our experiment data:

70-75W on 1.03-1.05V (no overclock)
83W on 1.10V (no overclock)
~100W on 1.20V (no overclock)
~120W on 1.20V (overclock)

maxl

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Quote from: dogie on May 10, 2013, 01:00:57 PM

Quote from: maxl on May 10, 2013, 08:32:45 AM

Quote from: dogie on May 10, 2013, 07:56:30 AM

You would have been so much better off putting that $15k into buyitnow ASICs or even FPGAs. You're going to have to power and cool 8KW of cards, and with the amount of planning demonstrated so far its going to go terribly wrong Sad

My 26GH system cost the equivalent FIAT today of about $11k, only generates 250W of heat and
sits on my windowsill.

Which machine do you have that can have 26 gh/s on 250w.

2x ASIC blades.

Quote from: FreedomCoin on May 10, 2013, 11:38:59 AM

Quote from: maxl on May 10, 2013, 08:32:45 AM

Quote from: dogie on May 10, 2013, 07:56:30 AM

You would have been so much better off putting that $15k into buyitnow ASICs or even FPGAs. You're going to have to power and cool 8KW of cards, and with the amount of planning demonstrated so far its going to go terribly wrong Sad

My 26GH system cost the equivalent FIAT today of about $11k, only generates 250W of heat and
sits on my windowsill.

Which machine do you have that can have 26 gh/s on 250w.

hes probably talking about 250w of excess heat, not wall power usage. I just dropped $500 to get another gighash/megahash on some mid level cards. I think what the other poster said, wait for BFL to catch up and buy one of their ASICs.

A large GPU farm is risky in the BTC world.. LTC would be more realistic.

No, 260W from the wall [230V]. Going down to 20GH I can get power down to 160ish

Oh. You have won 2 AsicMiner Blades on the auction an have oc´ed them.
Do they use about 130 watts per Blade?

MinerLT

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+ i have 3,5KW solar panels on mine roof.

dorift_it

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Quote from: je1p7u7 on May 10, 2013, 02:52:20 PM

Quote from: twitami1 on May 10, 2013, 01:40:06 PM

What option does he have if he wants to mine right now though? ASIC stuff is INSANE prices now--plus most are delayed till who knows when. Unless you got in on that first buy, ASIC is pretty tough to jump into at this point.

I thought he wants to profit, not to mine for the sake of it. It's a good time to wait and have some change when the avalon chip designs are available for sale in a couple of months. I don't know about other cryptocurrencies so if LTC is worth it then go for it.

Personally I bought some avalon chips and think gpu's are on there way out. Maybe it will take 6-12 months but we'll get there.

technically they pay themselves back within the first 6 months so ROI and profits are possible considering he can always sell the hardware after breaking even and still making profits.

je1p7u7

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Quote from: twitami1 on May 10, 2013, 01:40:06 PM

What option does he have if he wants to mine right now though? ASIC stuff is INSANE prices now--plus most are delayed till who knows when. Unless you got in on that first buy, ASIC is pretty tough to jump into at this point.

I thought he wants to profit, not to mine for the sake of it. It's a good time to wait and have some change when the avalon chip designs are available for sale in a couple of months. I don't know about other cryptocurrencies so if LTC is worth it then go for it.

Personally I bought some avalon chips and think gpu's are on there way out. Maybe it will take 6-12 months but we'll get there.

dogie

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Quote from: twitami1 on May 10, 2013, 01:40:06 PM

What option does he have if he wants to mine right now though? ASIC stuff is INSANE prices now--plus most are delayed till who knows when. Unless you got in on that first buy, ASIC is pretty tough to jump into at this point.

There were FIFTY of these blades auctioned only a week or two ago. They were delivered in 4 days across the globe. It is hard, but its not impossible.

But even FPGAs would have made more sense than such a large GPU farm than this, and they're readily available.

twitami1

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What option does he have if he wants to mine right now though? ASIC stuff is INSANE prices now--plus most are delayed till who knows when. Unless you got in on that first buy, ASIC is pretty tough to jump into at this point.

dogie

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Quote from: MinerLT on May 10, 2013, 12:27:00 PM

good luck with your asic rig & SHA-256 algo ONLY Grin

Good luck with your 8KW of heat and constant problems. I've GPU mined, trust me it will drive you to insanity.

dogie

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Quote from: maxl on May 10, 2013, 08:32:45 AM

Quote from: dogie on May 10, 2013, 07:56:30 AM

You would have been so much better off putting that $15k into buyitnow ASICs or even FPGAs. You're going to have to power and cool 8KW of cards, and with the amount of planning demonstrated so far its going to go terribly wrong Sad

My 26GH system cost the equivalent FIAT today of about $11k, only generates 250W of heat and
sits on my windowsill.

Which machine do you have that can have 26 gh/s on 250w.

2x ASIC blades.

Quote from: FreedomCoin on May 10, 2013, 11:38:59 AM

Quote from: maxl on May 10, 2013, 08:32:45 AM

Quote from: dogie on May 10, 2013, 07:56:30 AM

You would have been so much better off putting that $15k into buyitnow ASICs or even FPGAs. You're going to have to power and cool 8KW of cards, and with the amount of planning demonstrated so far its going to go terribly wrong Sad

My 26GH system cost the equivalent FIAT today of about $11k, only generates 250W of heat and
sits on my windowsill.

Which machine do you have that can have 26 gh/s on 250w.

hes probably talking about 250w of excess heat, not wall power usage. I just dropped $500 to get another gighash/megahash on some mid level cards. I think what the other poster said, wait for BFL to catch up and buy one of their ASICs.

A large GPU farm is risky in the BTC world.. LTC would be more realistic.

No, 260W from the wall [230V]. Going down to 20GH I can get power down to 160ish

MinerLT

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good luck with your asic rig & SHA-256 algo ONLY Grin

je1p7u7

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Quote from: MinerLT on May 01, 2013, 04:09:18 PM

First of all, GPU mining will be profitable in future ?

It is in my best private interest to invite you to invest a lot in a GPU mining rig so that you won't have any money left to compete with my (and all the other) asic rig in a few months Tongue

FreedomCoin

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Freedom to choose

Quote from: maxl on May 10, 2013, 08:32:45 AM

Quote from: dogie on May 10, 2013, 07:56:30 AM

You would have been so much better off putting that $15k into buyitnow ASICs or even FPGAs. You're going to have to power and cool 8KW of cards, and with the amount of planning demonstrated so far its going to go terribly wrong Sad

My 26GH system cost the equivalent FIAT today of about $11k, only generates 250W of heat and
sits on my windowsill.

Which machine do you have that can have 26 gh/s on 250w.

hes probably talking about 250w of excess heat, not wall power usage. I just dropped $500 to get another gighash/megahash on some mid level cards. I think what the other poster said, wait for BFL to catch up and buy one of their ASICs.

A large GPU farm is risky in the BTC world.. LTC would be more realistic.

Topic: 20gh/s system, need advise (Read 5557 times)