20gh/s system, need advise

[endriuska]

Poker did you ever pull the trigger on this? I'm on the same boat trying to get a system setup investing 6k.

[MinerLT]

ok lets start
first package of 3 just arrived

[BBQKorv]

Nice, what kind of rigs do you plan to build?

[BitshireHashaway]

Wow, I was planning on pulling the trigger on something like this for LTC and may. You don't need ram if you use CGMiner which is what I would do. Um, I would recommend mining some BTC until they become unprofitable and then switch to LTC. If it is still possible to do this in another 1.5 years~ I may dump around 5k-10k into this to see how it would work, that could be interesting:).

Also more pictures of deliveries, only the first picture works.

[computerparts]

First bit of advice would be to send those firecrackers back. The new Gigabyte revisions are atrocious. Get some Sapphire or MSI with the Twin Frozr. I hope you have a large commercial space for all of those.

[MinerLT]

unexpected problem..
Guiminer 0 shares accepted
Runs about 591kh/s but 0 shares accepted after some time. Trying to mine LTC in coinotron,notroll.in

using
Windows 7
12.8 catalyst drivers
AMD-APP-SDK-v2.4-Windows-32

, with guiminer settings 7950 high usage mining doesn't work,

[Dervana]

Saw some mention of 7850s and 7870s, are they ACTUALLY that good for scrypt mining? I haven't seen very good (proportional- price to return) stats for these.

[fran2k]

LTC mining needs more RAM ? im right ?

It uses much more VRAM than BTC mining but the amount also depend on which mining software you use. Reaper uses more memory tha cguminer.

[Amph]

unexpected problem..
Guiminer 0 shares accepted
Runs about 591kh/s but 0 shares accepted after some time. Trying to mine LTC in coinotron,notroll.in

using
Windows 7
12.8 catalyst drivers
AMD-APP-SDK-v2.4-Windows-32

, with guiminer settings 7950 high usage mining doesn't work,

try p2pool is much better

download cgminer 3.1.0
download p2pool 11.4
download ltc client of course

create a litecoinf.conf and write:
rpcuser=what you want
rpcpassword=what you want
server=1

run litecoin client first

create a shortcut of p2pool and in destination add "--net litecoin" and open p2pool, let him load all the shares
create a shortcut of cgminer and in destination add "--scrypt --intensity 13 --gpu-threads 2 --worksize 256 --thread-concurrency 8192"

run cgminer pointing to:
127.0.0.1:9327
your litecoin name
your litecoin pass

wait some minutes uintil p2pool rise your khash to 500+(only the first time)

btw drives use the last they are good

[MinerLT]

Problem found!
https://bitcointalk.org/index.php?topic=200936.0

[dogie]

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

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

[maxl]

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

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.

[FreedomCoin]

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

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.

[je1p7u7]

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

[MinerLT]

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

[dogie]

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

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.

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

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

[dogie]

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

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

[twitami1]

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]

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.

[je1p7u7]

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.