Topic: Finalising 4000kh/s+ Builds (Read 2741 times)

I'd invest a bit in the CPUs as well (the more cores the better). If you're building a mining ring you might as well get the best CPUs you can as well so you can swap over to any new coin that catches your eye and not worry about if it's better to mine said coin with cpu or gpu.

You could also cpu mine primecoin VERY efficiently while mining your LTCs.

I'd rather invest in Gpus than CPUs, how profitable is prime coin

If you had jumped early on with a few i5 or i7, would have earned triple-quad digits in the first few days

Builds are okay imo Wink

Thanks. Can anyone offer input regarding Gigabyte WF vs Sapphire VX 7950s

Lauda

legendary

Activity: 2674

Merit: 2965

Terminated.

Quote from: Duffer1 on July 18, 2013, 07:09:42 AM

I'd invest a bit in the CPUs as well (the more cores the better). If you're building a mining ring you might as well get the best CPUs you can as well so you can swap over to any new coin that catches your eye and not worry about if it's better to mine said coin with cpu or gpu.

You could also cpu mine primecoin VERY efficiently while mining your LTCs.

I'd rather invest in Gpus than CPUs, how profitable is prime coin

If you had jumped early on with a few i5 or i7, would have earned triple-quad digits in the first few days

Builds are okay imo Wink

gooseta

newbie

Activity: 28

Merit: 0

Also I'm buying a custom case from http://richchomiczewski.wordpress.com/ here on bitcointalk.

gooseta

newbie

Activity: 28

Merit: 0

I'd invest a bit in the CPUs as well (the more cores the better). If you're building a mining ring you might as well get the best CPUs you can as well so you can swap over to any new coin that catches your eye and not worry about if it's better to mine said coin with cpu or gpu.

You could also cpu mine primecoin VERY efficiently while mining your LTCs.

I'd rather invest in Gpus than CPUs, how profitable is prime coin

It's not profitable (unless price/demand goes up), but LTC is in that same boat right now too. Right now an alt coin mining rig would really just be a way to crank out some hashes on promising new alt coins. It likely won't be profitable as a pure LTC rig unless their value goes up.

If LTC is all you want then buying $4k worth of LTC might be the better way to go. (look at it this way: for $4k you could buy 1,333 coins, or you can spend 300 days mining 1,333 coins (don't forget cost of electricity)). It would take 10 months or so at current $ values (+ difficulty) to break even on your proposed rig (not including electricity, it adds up FAST for GPU rigs).

Yeah, I didn't mention it but I am not attached to ltc. I'm looking into fastcoin and other alts. Even some small ones which I can exchange for ltc btc. It is for fun and my goal is to make £750, I don't need to break even, and I can use the 7950s in many builds to come.

Edit : the twin frozr and vaporx cards are around £260 and the gigabyte cards are £240, so I can save £100 w/ gigabyte cards, is it worth it?

Duffer1

full member

Activity: 227

Merit: 100

I'd invest a bit in the CPUs as well (the more cores the better). If you're building a mining ring you might as well get the best CPUs you can as well so you can swap over to any new coin that catches your eye and not worry about if it's better to mine said coin with cpu or gpu.

You could also cpu mine primecoin VERY efficiently while mining your LTCs.

I'd rather invest in Gpus than CPUs, how profitable is prime coin

It's not profitable (unless price/demand goes up), but LTC is in that same boat right now too. Right now an alt coin mining rig would really just be a way to crank out some hashes on promising new alt coins. It likely won't be profitable as a pure LTC rig unless their value goes up.

If LTC is all you want then buying $4k worth of LTC might be the better way to go. (look at it this way: for $4k you could buy 1,333 coins, or you can spend 300 days mining 1,333 coins (don't forget cost of electricity)). It would take 10 months or so at current $ values (+ difficulty) to break even on your proposed rig (not including electricity, it adds up FAST for GPU rigs).

gooseta

newbie

Activity: 28

Merit: 0

Quote from: broken_pixel on July 17, 2013, 03:58:15 PM

I'd invest a bit in the CPUs as well (the more cores the better). If you're building a mining ring you might as well get the best CPUs you can as well so you can swap over to any new coin that catches your eye and not worry about if it's better to mine said coin with cpu or gpu.

You could also cpu mine primecoin VERY efficiently while mining your LTCs.

I'd rather invest in Gpus than CPUs, how profitable is prime coin

Duffer1

full member

Activity: 227

Merit: 100

I'd invest a bit in the CPUs as well (the more cores the better). If you're building a mining ring you might as well get the best CPUs you can as well so you can swap over to any new coin that catches your eye and not worry about if it's better to mine said coin with cpu or gpu.

You could also cpu mine primecoin VERY efficiently while mining your LTCs.

gooseta

newbie

Activity: 28

Merit: 0

990FXA-UD5 board you might find for 100.00 USD and supports 5 gpus without having to short out the pcie slots.

As for the GPUs I would suggest either MSI R7950s REV 1.0 8pin 6pin (not hardware locked) or Gigalock cards flashed to F43 BIOS or you will be stuck with a hardware locked voltage of 1.250v. Shocked

4,000KH/s is not going to get you many LTC these days, you would be better off mining DGC and other ALT coins.

This site is helpful for determining what coins to mine.
http://www.coinwarz.com/

How many kh ash/s do your msi cards get and how much do they draw from the wall

broken_pixel

hero member

Activity: 770

Merit: 500

990FXA-UD5 board you might find for 100.00 USD and supports 5 gpus without having to short out the pcie slots.

As for the GPUs I would suggest either MSI R7950s REV 1.0 8pin 6pin (not hardware locked) or Gigalock cards flashed to F43 BIOS or you will be stuck with a hardware locked voltage of 1.250v. Shocked

4,000KH/s is not going to get you many LTC these days, you would be better off mining DGC and other ALT coins.

This site is helpful for determining what coins to mine.
http://www.coinwarz.com/

zackclark70

legendary

Activity: 868

Merit: 1000

ADT developer

4 7950 vapour x cards draw under 900w from the wall use 1050mhz core 1250mhz ram 1.050v and you will get 630kh-640kh per card

PoolMinor

legendary

Activity: 1843

Merit: 1338

XXXVII Fnord is toast without bread

Quote from: gooseta on July 17, 2013, 02:19:44 AM

Why is it difficult to mine with? Also what am3/ am3+ board would you recommend for use with risers?

Sorry, I don't have a recommendation other than to NOT use the Gigabyte 990FXA-UD3, I am only a hobbyist miner with 2 7870XT's on an ASUS M4A78T-E.

Good Luck!

-PoolMinor

gooseta

newbie

Activity: 28

Merit: 0

Quote from: mercSuey on July 17, 2013, 08:32:06 AM

Quote from: gooseta on July 17, 2013, 08:08:49 AM

Quote from: mercSuey on July 17, 2013, 08:32:06 AM

The sapphire vapor cards seem to be the best for hashing... Agree/disagree?

I don't like 7950s for two reasons. 1) because you have to run them at intensity 20, they draw more electricity than 7970s. 2)because of high intensity, I found them to be less stable and not as efficient as popular consensus claims. Moreover, I had the standard Sapphire 7950s (the ones advertised on coinchoose), and those fans are as loud as a industrial vacuum cleaner. So, if you don't have a basement or garage, or just some separate space for your rig, then it can get really annoying. I have twelve 7970s, both Gigabyte and Sapphire Vapor-X. The Vapor-X are awesome and seem to be most stable. That's not to say the Giga's are bad. It's just that the Vapor-X gpus have worked pretty much flawlessly. The Giga's have had a couple hiccups along the way, but nothing serious. But the Giga's were $400 usd from Amazon and I'm a prime member and I get 764kh on them. The Vapor-X were $450 and I also get 764kh on them. A quad rig pulls 1300 watts, without touching voltage.

-Merc

I was originally thinking of 7970s, but they draw more power : fact. A 5x7970 rig would require more than 1475w like my 5x 7950 build

I forgot to mention resale value of 7970s are much better. This is going to come into play when next gen models hit the market later this year (supposedly).

Yes but I won't be selling the cards for many years...

gooseta

newbie

Activity: 28

Merit: 0

Quote from: gooseta on July 17, 2013, 08:08:49 AM

Quote from: gooseta on July 17, 2013, 08:08:49 AM

The sapphire vapor cards seem to be the best for hashing... Agree/disagree?

I don't like 7950s for two reasons. 1) because you have to run them at intensity 20, they draw more electricity than 7970s. 2)because of high intensity, I found them to be less stable and not as efficient as popular consensus claims. Moreover, I had the standard Sapphire 7950s (the ones advertised on coinchoose), and those fans are as loud as a industrial vacuum cleaner. So, if you don't have a basement or garage, or just some separate space for your rig, then it can get really annoying. I have twelve 7970s, both Gigabyte and Sapphire Vapor-X. The Vapor-X are awesome and seem to be most stable. That's not to say the Giga's are bad. It's just that the Vapor-X gpus have worked pretty much flawlessly. The Giga's have had a couple hiccups along the way, but nothing serious. But the Giga's were $400 usd from Amazon and I'm a prime member and I get 764kh on them. The Vapor-X were $450 and I also get 764kh on them. A quad rig pulls 1300 watts, without touching voltage.

-Merc

I was originally thinking of 7970s, but they draw more power : fact. A 5x7970 rig would require more than 1475w like my 5x 7950 build

I forgot to mention resale value of 7970s are much better. This is going to come into play when next gen models hit the market later this year (supposedly).

Yes but 5x 7950 is £1600 and makes 2800-3000kh/s. 4x 7970 is £1600 and makes 2600 kh/s and draws more power

mercSuey

sr. member

Activity: 364

Merit: 250

The sapphire vapor cards seem to be the best for hashing... Agree/disagree?

I don't like 7950s for two reasons. 1) because you have to run them at intensity 20, they draw more electricity than 7970s. 2)because of high intensity, I found them to be less stable and not as efficient as popular consensus claims. Moreover, I had the standard Sapphire 7950s (the ones advertised on coinchoose), and those fans are as loud as a industrial vacuum cleaner. So, if you don't have a basement or garage, or just some separate space for your rig, then it can get really annoying. I have twelve 7970s, both Gigabyte and Sapphire Vapor-X. The Vapor-X are awesome and seem to be most stable. That's not to say the Giga's are bad. It's just that the Vapor-X gpus have worked pretty much flawlessly. The Giga's have had a couple hiccups along the way, but nothing serious. But the Giga's were $400 usd from Amazon and I'm a prime member and I get 764kh on them. The Vapor-X were $450 and I also get 764kh on them. A quad rig pulls 1300 watts, without touching voltage.

-Merc

I was originally thinking of 7970s, but they draw more power : fact. A 5x7970 rig would require more than 1475w like my 5x 7950 build

I forgot to mention resale value of 7970s are much better. This is going to come into play when next gen models hit the market later this year (supposedly).

gooseta

newbie

Activity: 28

Merit: 0

Quote from: Joerii on July 17, 2013, 07:18:58 AM

The sapphire vapor cards seem to be the best for hashing... Agree/disagree?

I don't like 7950s for two reasons. 1) because you have to run them at intensity 20, they draw more electricity than 7970s. 2)because of high intensity, I found them to be less stable and not as efficient as popular consensus claims. Moreover, I had the standard Sapphire 7950s (the ones advertised on coinchoose), and those fans are as loud as a industrial vacuum cleaner. So, if you don't have a basement or garage, or just some separate space for your rig, then it can get really annoying. I have twelve 7970s, both Gigabyte and Sapphire Vapor-X. The Vapor-X are awesome and seem to be most stable. That's not to say the Giga's are bad. It's just that the Vapor-X gpus have worked pretty much flawlessly. The Giga's have had a couple hiccups along the way, but nothing serious. But the Giga's were $400 usd from Amazon and I'm a prime member and I get 764kh on them. The Vapor-X were $450 and I also get 764kh on them. A quad rig pulls 1300 watts, without touching voltage.

-Merc

I was originally thinking of 7970s, but they draw more power : fact. A 5x7970 rig would require more than 1475w like my 5x 7950 build

jlsminingcorp

hero member

Activity: 493

Merit: 500

Hooray for non-equilibrium thermodynamics!

Don't even try linux for a mining Scrypt unless you are either very competent with Linux already or have a 150+ IQ.

I'm not sure I agree. I don't remember it being any more difficult to set up scrypt mining in linux than SHA-256, you just need to run the cgminer configure script with --enable-scrypt flags. There are lots of tutorials (e.g. https://bitcointalksearch.org/topic/compiling-cgminer-with-scrypt-on-top-of-ubuntu-1204-for-7970s-95718). Mining in linux is worth the effort in the long run, as it's much easier to switch between differnet coins and to automate your mining using your favourite shell scripting language.

I'm happy to share cgminer config files if anybody needs them (no guaraantee that they are optimised, but they may help).

jlsminingcorp

hero member

Activity: 493

Merit: 500

Hooray for non-equilibrium thermodynamics!

Quote from: gooseta on July 17, 2013, 06:05:57 AM

I don't like 7950s for two reasons. 1) because you have to run them at intensity 20, they draw more electricity than 7970s. 2)because of high intensity, I found them to be less stable and not as efficient as popular consensus claims. Moreover, I had the standard Sapphire 7950s (the ones advertised on coinchoose), and those fans are as loud as a industrial vacuum cleaner. So, if you don't have a basement or garage, or just some separate space for your rig, then it can get really annoying. I have twelve 7970s, both Gigabyte and Sapphire Vapor-X. The Vapor-X are awesome and seem to be most stable. That's not to say the Giga's are bad. It's just that the Vapor-X gpus have worked pretty much flawlessly. The Giga's have had a couple hiccups along the way, but nothing serious. But the Giga's were $400 usd from Amazon and I'm a prime member and I get 764kh on them. The Vapor-X were $450 and I also get 764kh on them. A quad rig pulls 1300 watts, without touching voltage.

-Merc

Yes, they're all fking noisy. If you have a significant other, kids, pets etc. do them a favour and put your rig in the garage Wink

!

jlsminingcorp

hero member

Activity: 493

Merit: 500

Hooray for non-equilibrium thermodynamics!

Good to know. Yeah I might hook up the cables when I want to show off benchmark scores or a bit of gaming

Edit: how many kh/s do your gigabytes get?

I don't push them too hard (1000MHz core and mem clocks) and get around 560-580 kH/s with temps of 65-70 oC. If you're willing to push the core clock higher than this then I believe that you can go higher. In my hands the mem clock has less of an impact (even for scrypt!) In terms of temperature control, there's a big difference between one card and multiple cards, so think hard about your cooling solution. You'll need to deliver lots of cool air to the GPU fans to avoid them being heated up by their neighbours. Good luck and enjoy!

mercSuey

sr. member

Activity: 364

Merit: 250