Steven - anything happen with this?
And lastly, I received an e-mail earlier today from the "World Bitcoin, Digital Money & Payment Systems Conference 2014” inviting Ultracoin to speak at the Shangri-La Hotel, Bangkok, Thailand on November 11th & 12th of 2014. I will have to speak with the rest of the management team about our official response, but it is an honour to be invited to another conference on such short notice!
Topic: [Ultracoin] [Est. Feb 2014] ~ ASIC Resistant & Ultrafast 6 Second Transactions! - page 206. (Read 381069 times)
November 11, 2014, 12:59:41 AM
November 11, 2014, 12:33:06 AM
UTC needs an Android wallet - urgently
Its crazy at this stage that it still does not have one.
Its essential for mass adoption and day to day use of the coin for "real world" things - on the run.
and of course an IPhone equivalent
AND
if you have got some spare time - check this out.
Its the simplest wallet you might ever imagine. It really works.
http://cryptap.us/myr/jswallet/ anyone can use this in about 15 seconds
Personally I was stunned when I discovered this one.
Its crazy at this stage that it still does not have one.
Its essential for mass adoption and day to day use of the coin for "real world" things - on the run.
and of course an IPhone equivalent
AND
if you have got some spare time - check this out.
Its the simplest wallet you might ever imagine. It really works.
http://cryptap.us/myr/jswallet/ anyone can use this in about 15 seconds
Personally I was stunned when I discovered this one.
November 10, 2014, 05:35:02 PM
Hmm, dunno why, but when I run your settings 2 of my 6 cards run at 1.4 - 2.0 kh/s. The rest run at 3.43. The rig is with 8 gigs of ram, so the ram should't be the issue.
I get the same low hash on windows 8 but on vista I always get 3.5. Some thing about windows itself.It is good to realize that Nvidia needs lot of more trafic between main board (chipset, CPU, memory) and GPU than AMD.
Perhaps bottle neck come there just as one possible suspect about why.
What is HW combination what can really handle 6x GPU using maximal/enough datastream speed for all these.
AMD (O. CL) do not care example if use 1x risers (due to much less needed data trafic thru PCI-E). But Nvidia (Cuda) start suffer even in fastest HW system if use 1x communication with PCI-E. What HW (it need also look how CPU itself is related to this) is designed for handle with real full speed 6x Nvidia GPU data trafic through PCI-E. And still we are with easy Nfactor 14.
Also operating system may affect due to things how they share resources.
Are you using any of your mining cards to drive a monitor? That's a performance hit too. You actually get less warps because of the memory taken to run a screen. Do all the cards have adequate power? Make sure you are using the latest version of CudaMiner too. Earlier this year the Keccak portion had to be done single-threaded by CPU. Now, most everything can be offloaded into the GPUs.
I'm using Ubuntu Server 14.04. It's still not perfect. I always seem to have at least one card lagging a bit on each of my rigs- but not more than 10-15% from the highest at times. Earlier versions of CudaMiner performed part of the algos by CPU. I get 19-21khash on each 6 card rig.
Intel Celeron G1850 Dual Core 2.9GHz
ASRock H81 Pro
EVGA 750ti ACX Version (with 6pin power jacks) 3-4 each server
EVGA 750ti Non-ACX Version 2-3 each server
PCIe 1x Powered Risers (http://www.newegg.com/Product/Product.aspx?Item=9SIA32C1EC4586)
You get plenty of adapters that come with the 1x risers so you can convert SATA and the 4-pin molex connectors to 6pin PCIe power jacks and to power the risers. I recommend at least a 650W PSU, single 12v rail. Make sure it has enough SATA and 4 pin connectors to run a 4 pin molex to each card and a 6pin PCIe connector to the top of the GPU. For the most part I dedicated 1 line off the PSU to powering the riser and the GPU. With a 2-3 non-ACX cards running off the powered risers. I have all six running on each of my rigs.
I wouldn't try to run more than one non-ACX style GPU in a setup without a powered riser as it will go beyond PCIe power specs (75W) and you run the risk of frying the traces in your mobo.
Don't use Windows 8 then. Another thing to try is a 16x to 16x riser: http://www.amazon.com/Powered-Flexible-Extender-Bitcoin-Mining/dp/B00CQB1RIU
November 10, 2014, 05:15:56 PM
Hmm, dunno why, but when I run your settings 2 of my 6 cards run at 1.4 - 2.0 kh/s. The rest run at 3.43. The rig is with 8 gigs of ram, so the ram should't be the issue.
I get the same low hash on windows 8 but on vista I always get 3.5. Some thing about windows itself.It is good to realize that Nvidia needs lot of more trafic between main board (chipset, CPU, memory) and GPU than AMD.
Perhaps bottle neck come there just as one possible suspect about why.
What is HW combination what can really handle 6x GPU using maximal/enough datastream speed for all these.
AMD (O. CL) do not care example if use 1x risers (due to much less needed data trafic thru PCI-E). But Nvidia (Cuda) start suffer even in fastest HW system if use 1x communication with PCI-E. What HW (it need also look how CPU itself is related to this) is designed for handle with real full speed 6x Nvidia GPU data trafic through PCI-E. And still we are with easy Nfactor 14.
Also operating system may affect due to things how they share resources.
Are you using any of your mining cards to drive a monitor? That's a performance hit too. You actually get less warps because of the memory taken to run a screen. Do all the cards have adequate power? Make sure you are using the latest version of CudaMiner too. Earlier this year the Keccak portion had to be done single-threaded by CPU. Now, most everything can be offloaded into the GPUs.
I'm using Ubuntu Server 14.04. It's still not perfect. I always seem to have at least one card lagging a bit on each of my rigs- but not more than 10-15% from the highest at times. Earlier versions of CudaMiner performed part of the algos by CPU. I get 19-21khash on each 6 card rig.
Intel Celeron G1850 Dual Core 2.9GHz
ASRock H81 Pro
EVGA 750ti ACX Version (with 6pin power jacks) 3-4 each server
EVGA 750ti Non-ACX Version 2-3 each server
PCIe 1x Powered Risers (http://www.newegg.com/Product/Product.aspx?Item=9SIA32C1EC4586)
You get plenty of adapters that come with the 1x risers so you can convert SATA and the 4-pin molex connectors to 6pin PCIe power jacks and to power the risers. I recommend at least a 650W PSU, single 12v rail. Make sure it has enough SATA and 4 pin connectors to run a 4 pin molex to each card and a 6pin PCIe connector to the top of the GPU. For the most part I dedicated 1 line off the PSU to powering the riser and the GPU. With a 2-3 non-ACX cards running off the powered risers. I have all six running on each of my rigs.
I wouldn't try to run more than one non-ACX style GPU in a setup without a powered riser as it will go beyond PCIe power specs (75W) and you run the risk of frying the traces in your mobo.
Don't use Windows 8 then. Another thing to try is a 16x to 16x riser: http://www.amazon.com/Powered-Flexible-Extender-Bitcoin-Mining/dp/B00CQB1RIU
November 10, 2014, 05:06:35 PM
[/quote]
Can someone help me with the .bat file for 750 Ti
Thx in advance
[/quote]
for Windows ?
November 10, 2014, 02:07:17 PM
Hmm, dunno why, but when I run your settings 2 of my 6 cards run at 1.4 - 2.0 kh/s. The rest run at 3.43. The rig is with 8 gigs of ram, so the ram should't be the issue.
I get the same low hash on windows 8 but on vista I always get 3.5. Some thing about windows itself.It is good to realize that Nvidia needs lot of more trafic between main board (chipset, CPU, memory) and GPU than AMD.
Perhaps bottle neck come there just as one possible suspect about why.
What is HW combination what can really handle 6x GPU using maximal/enough datastream speed for all these.
AMD (O. CL) do not care example if use 1x risers (due to much less needed data trafic thru PCI-E). But Nvidia (Cuda) start suffer even in fastest HW system if use 1x communication with PCI-E. What HW (it need also look how CPU itself is related to this) is designed for handle with real full speed 6x Nvidia GPU data trafic through PCI-E. And still we are with easy Nfactor 14.
Also operating system may affect due to things how they share resources.
Are you using any of your mining cards to drive a monitor? That's a performance hit too. You actually get less warps because of the memory taken to run a screen. Do all the cards have adequate power? Make sure you are using the latest version of CudaMiner too. Earlier this year the Keccak portion had to be done single-threaded by CPU. Now, most everything can be offloaded into the GPUs.
I'm using Ubuntu Server 14.04. It's still not perfect. I always seem to have at least one card lagging a bit on each of my rigs- but not more than 10-15% from the highest at times. Earlier versions of CudaMiner performed part of the algos by CPU. I get 19-21khash on each 6 card rig.
Intel Celeron G1850 Dual Core 2.9GHz
ASRock H81 Pro
EVGA 750ti ACX Version (with 6pin power jacks) 3-4 each server
EVGA 750ti Non-ACX Version 2-3 each server
PCIe 1x Powered Risers (http://www.newegg.com/Product/Product.aspx?Item=9SIA32C1EC4586)
You get plenty of adapters that come with the 1x risers so you can convert SATA and the 4-pin molex connectors to 6pin PCIe power jacks and to power the risers. I recommend at least a 650W PSU, single 12v rail. Make sure it has enough SATA and 4 pin connectors to run a 4 pin molex to each card and a 6pin PCIe connector to the top of the GPU. For the most part I dedicated 1 line off the PSU to powering the riser and the GPU. With a 2-3 non-ACX cards running off the powered risers. I have all six running on each of my rigs.
I wouldn't try to run more than one non-ACX style GPU in a setup without a powered riser as it will go beyond PCIe power specs (75W) and you run the risk of frying the traces in your mobo.
Can someone help me with the .bat file for 750 Ti
Thx in advance
November 10, 2014, 08:55:02 AM
Hmm, dunno why, but when I run your settings 2 of my 6 cards run at 1.4 - 2.0 kh/s. The rest run at 3.43. The rig is with 8 gigs of ram, so the ram should't be the issue.
I get the same low hash on windows 8 but on vista I always get 3.5. Some thing about windows itself.It is good to realize that Nvidia needs lot of more trafic between main board (chipset, CPU, memory) and GPU than AMD.
Perhaps bottle neck come there just as one possible suspect about why.
What is HW combination what can really handle 6x GPU using maximal/enough datastream speed for all these.
AMD (O. CL) do not care example if use 1x risers (due to much less needed data trafic thru PCI-E). But Nvidia (Cuda) start suffer even in fastest HW system if use 1x communication with PCI-E. What HW (it need also look how CPU itself is related to this) is designed for handle with real full speed 6x Nvidia GPU data trafic through PCI-E. And still we are with easy Nfactor 14.
Also operating system may affect due to things how they share resources.
Are you using any of your mining cards to drive a monitor? That's a performance hit too. You actually get less warps because of the memory taken to run a screen. Do all the cards have adequate power? Make sure you are using the latest version of CudaMiner too. Earlier this year the Keccak portion had to be done single-threaded by CPU. Now, most everything can be offloaded into the GPUs.
I'm using Ubuntu Server 14.04. It's still not perfect. I always seem to have at least one card lagging a bit on each of my rigs- but not more than 10-15% from the highest at times. Earlier versions of CudaMiner performed part of the algos by CPU. I get 19-21khash on each 6 card rig.
Intel Celeron G1850 Dual Core 2.9GHz
ASRock H81 Pro
EVGA 750ti ACX Version (with 6pin power jacks) 3-4 each server
EVGA 750ti Non-ACX Version 2-3 each server
PCIe 1x Powered Risers (http://www.newegg.com/Product/Product.aspx?Item=9SIA32C1EC4586)
You get plenty of adapters that come with the 1x risers so you can convert SATA and the 4-pin molex connectors to 6pin PCIe power jacks and to power the risers. I recommend at least a 650W PSU, single 12v rail. Make sure it has enough SATA and 4 pin connectors to run a 4 pin molex to each card and a 6pin PCIe connector to the top of the GPU. For the most part I dedicated 1 line off the PSU to powering the riser and the GPU. With a 2-3 non-ACX cards running off the powered risers. I have all six running on each of my rigs.
I wouldn't try to run more than one non-ACX style GPU in a setup without a powered riser as it will go beyond PCIe power specs (75W) and you run the risk of frying the traces in your mobo.
November 09, 2014, 04:46:01 PM
Hello,
Steven "Rapture"
Management Director
[email protected]
Steven "Rapture"
Management Director
[email protected]
I wonder if we would surpass any time the 1Million marketcap as we are toss and turning around 500k-700k and never go higher than that...if we can demolish this wall of 6 btc and surpass 0.00012-13....we maybe we can reach out the desired 0.0002-3 level stability for ultracoin....cheers for the new logo
So the wall is gone
so lets see UTC grow on marketcap November 09, 2014, 03:58:27 PM
Hello,
Steven "Rapture"
Management Director
[email protected]
Steven "Rapture"
Management Director
[email protected]
I wonder if we would surpass any time the 1Million marketcap as we are toss and turning around 500k-700k and never go higher than that...if we can demolish this wall of 6 btc and surpass 0.00012-13....we maybe we can reach out the desired 0.0002-3 level stability for ultracoin....cheers for the new logo
So the wall is gone
so lets see UTC grow on marketcap November 09, 2014, 03:58:02 PM
http://ultracointalk.org/index.php?topic=234.new#new
New Ultracoin acceptance images:
Compliments to B3DA on the re-design.
New Ultracoin acceptance images:
Compliments to B3DA on the re-design.
Keep on loving the second logo
briljant Job! 
November 09, 2014, 03:13:12 PM
http://ultracointalk.org/index.php?topic=234.new#new
New Ultracoin acceptance images:
Compliments to B3DA on the re-design.
New Ultracoin acceptance images:
Compliments to B3DA on the re-design.
November 09, 2014, 12:27:36 PM
Wow! UTC has gone up a lot lately! 
November 09, 2014, 09:17:57 AM
New purse (1.0.4.1) does not work. 
November 09, 2014, 07:46:12 AM
Sorry for any confusion here
this was "satire" - a particular style of writing to make a point with intrigue
Basically a joke
All bullshit actually
satire
noun
the use of humour, irony, exaggeration, or ridicule to expose and criticize people's stupidity or vices, particularly in the context of contemporary politics and other topical issues.
Please bring on the one-click miner
I Agree 100% with you
Ha ha...kind of backfired.. this was "satire" - a particular style of writing to make a point with intrigue
Basically a joke
All bullshit actually
satire
noun
the use of humour, irony, exaggeration, or ridicule to expose and criticize people's stupidity or vices, particularly in the context of contemporary politics and other topical issues.
Please bring on the one-click miner
This "one-click" mining discussion cracks me up..........
Yeah we don't want non-technical people in THIS coin - and besides the technical dudes who have done most of the mining to date need to have the lions share of future distributions. Thats perfectly obvious to all. Its not centralisation at all - its just a select group of the elite producing supply - its not like we are printing money or anything!
Lets change the name to MOC - Miners Only Coin - so any newcomers really get the clear message to "back off".
This is the best strategy to ensure distributed ownership and mass adoption so that UTC can be a grand success.
Best we make everyone pass a very demanding set of technical tests first, to earn the right to mine - we just can't afford to have any plumbers, bakers or truck drivers owning, trading or God forbid "mining our coin".
This one-click miner is a very dangerous idea - it cuts right to the basis of everything we stand for at UTC - can we make it much harder to mine please? - I just don't want to share it with any more people at all AND we need to limit the supply as much as possible so the price goes way up - THEN sell to those idiot non-technical believers before they realise that they were suckered.
Yeah we don't want non-technical people in THIS coin - and besides the technical dudes who have done most of the mining to date need to have the lions share of future distributions. Thats perfectly obvious to all. Its not centralisation at all - its just a select group of the elite producing supply - its not like we are printing money or anything!
Lets change the name to MOC - Miners Only Coin - so any newcomers really get the clear message to "back off".
This is the best strategy to ensure distributed ownership and mass adoption so that UTC can be a grand success.
Best we make everyone pass a very demanding set of technical tests first, to earn the right to mine - we just can't afford to have any plumbers, bakers or truck drivers owning, trading or God forbid "mining our coin".
This one-click miner is a very dangerous idea - it cuts right to the basis of everything we stand for at UTC - can we make it much harder to mine please? - I just don't want to share it with any more people at all AND we need to limit the supply as much as possible so the price goes way up - THEN sell to those idiot non-technical believers before they realise that they were suckered.
I Agree 100% with you
November 09, 2014, 06:46:38 AM
Sorry for any confusion here
this was "satire" - a particular style of writing to make a point with intrigue
Basically a joke
All bullshit actually
satire
noun
the use of humour, irony, exaggeration, or ridicule to expose and criticize people's stupidity or vices, particularly in the context of contemporary politics and other topical issues.
Please bring on the one-click miner
I Agree 100% with you
this was "satire" - a particular style of writing to make a point with intrigue
Basically a joke
All bullshit actually
satire
noun
the use of humour, irony, exaggeration, or ridicule to expose and criticize people's stupidity or vices, particularly in the context of contemporary politics and other topical issues.
Please bring on the one-click miner
This "one-click" mining discussion cracks me up..........
Yeah we don't want non-technical people in THIS coin - and besides the technical dudes who have done most of the mining to date need to have the lions share of future distributions. Thats perfectly obvious to all. Its not centralisation at all - its just a select group of the elite producing supply - its not like we are printing money or anything!
Lets change the name to MOC - Miners Only Coin - so any newcomers really get the clear message to "back off".
This is the best strategy to ensure distributed ownership and mass adoption so that UTC can be a grand success.
Best we make everyone pass a very demanding set of technical tests first, to earn the right to mine - we just can't afford to have any plumbers, bakers or truck drivers owning, trading or God forbid "mining our coin".
This one-click miner is a very dangerous idea - it cuts right to the basis of everything we stand for at UTC - can we make it much harder to mine please? - I just don't want to share it with any more people at all AND we need to limit the supply as much as possible so the price goes way up - THEN sell to those idiot non-technical believers before they realise that they were suckered.
Yeah we don't want non-technical people in THIS coin - and besides the technical dudes who have done most of the mining to date need to have the lions share of future distributions. Thats perfectly obvious to all. Its not centralisation at all - its just a select group of the elite producing supply - its not like we are printing money or anything!
Lets change the name to MOC - Miners Only Coin - so any newcomers really get the clear message to "back off".
This is the best strategy to ensure distributed ownership and mass adoption so that UTC can be a grand success.
Best we make everyone pass a very demanding set of technical tests first, to earn the right to mine - we just can't afford to have any plumbers, bakers or truck drivers owning, trading or God forbid "mining our coin".
This one-click miner is a very dangerous idea - it cuts right to the basis of everything we stand for at UTC - can we make it much harder to mine please? - I just don't want to share it with any more people at all AND we need to limit the supply as much as possible so the price goes way up - THEN sell to those idiot non-technical believers before they realise that they were suckered.
I Agree 100% with you
I got it! Bring on the one click mining and let's get spreading the word
! Hopefully this will introduce 1000's of newcomers and also attract the redit users and 'under 18's' markets. Perhaps a YouTube video could be done to explain it.
November 09, 2014, 04:27:01 AM
I'll shut-up then!
November 09, 2014, 03:59:12 AM
Sorry for any confusion here
this was "satire" - a particular style of writing to make a point with intrigue
Basically a joke
All bullshit actually
satire
noun
the use of humour, irony, exaggeration, or ridicule to expose and criticize people's stupidity or vices, particularly in the context of contemporary politics and other topical issues.
Please bring on the one-click miner
I Agree 100% with you
this was "satire" - a particular style of writing to make a point with intrigue
Basically a joke
All bullshit actually
satire
noun
the use of humour, irony, exaggeration, or ridicule to expose and criticize people's stupidity or vices, particularly in the context of contemporary politics and other topical issues.
Please bring on the one-click miner
This "one-click" mining discussion cracks me up..........
Yeah we don't want non-technical people in THIS coin - and besides the technical dudes who have done most of the mining to date need to have the lions share of future distributions. Thats perfectly obvious to all. Its not centralisation at all - its just a select group of the elite producing supply - its not like we are printing money or anything!
Lets change the name to MOC - Miners Only Coin - so any newcomers really get the clear message to "back off".
This is the best strategy to ensure distributed ownership and mass adoption so that UTC can be a grand success.
Best we make everyone pass a very demanding set of technical tests first, to earn the right to mine - we just can't afford to have any plumbers, bakers or truck drivers owning, trading or God forbid "mining our coin".
This one-click miner is a very dangerous idea - it cuts right to the basis of everything we stand for at UTC - can we make it much harder to mine please? - I just don't want to share it with any more people at all AND we need to limit the supply as much as possible so the price goes way up - THEN sell to those idiot non-technical believers before they realise that they were suckered.
Yeah we don't want non-technical people in THIS coin - and besides the technical dudes who have done most of the mining to date need to have the lions share of future distributions. Thats perfectly obvious to all. Its not centralisation at all - its just a select group of the elite producing supply - its not like we are printing money or anything!
Lets change the name to MOC - Miners Only Coin - so any newcomers really get the clear message to "back off".
This is the best strategy to ensure distributed ownership and mass adoption so that UTC can be a grand success.
Best we make everyone pass a very demanding set of technical tests first, to earn the right to mine - we just can't afford to have any plumbers, bakers or truck drivers owning, trading or God forbid "mining our coin".
This one-click miner is a very dangerous idea - it cuts right to the basis of everything we stand for at UTC - can we make it much harder to mine please? - I just don't want to share it with any more people at all AND we need to limit the supply as much as possible so the price goes way up - THEN sell to those idiot non-technical believers before they realise that they were suckered.
I Agree 100% with you
November 08, 2014, 09:07:12 PM
Hmm, dunno why, but when I run your settings 2 of my 6 cards run at 1.4 - 2.0 kh/s. The rest run at 3.43. The rig is with 8 gigs of ram, so the ram should't be the issue.
I get the same low hash on windows 8 but on vista I always get 3.5. Some thing about windows itself.It is good to realize that Nvidia needs lot of more trafic between main board (chipset, CPU, memory) and GPU than AMD.
Perhaps bottle neck come there just as one possible suspect about why.
What is HW combination what can really handle 6x GPU using maximal/enough datastream speed for all these.
AMD (O. CL) do not care example if use 1x risers (due to much less needed data trafic thru PCI-E). But Nvidia (Cuda) start suffer even in fastest HW system if use 1x communication with PCI-E. What HW (it need also look how CPU itself is related to this) is designed for handle with real full speed 6x Nvidia GPU data trafic through PCI-E. And still we are with easy Nfactor 14.
Also operating system may affect due to things how they share resources.
Are you using any of your mining cards to drive a monitor? That's a performance hit too. You actually get less warps because of the memory taken to run a screen. Do all the cards have adequate power? Make sure you are using the latest version of CudaMiner too. Earlier this year the Keccak portion had to be done single-threaded by CPU. Now, most everything can be offloaded into the GPUs.
I'm using Ubuntu Server 14.04. It's still not perfect. I always seem to have at least one card lagging a bit on each of my rigs- but not more than 10-15% from the highest at times. Earlier versions of CudaMiner performed part of the algos by CPU. I get 19-21khash on each 6 card rig.
Intel Celeron G1850 Dual Core 2.9GHz
ASRock H81 Pro
EVGA 750ti ACX Version (with 6pin power jacks) 3-4 each server
EVGA 750ti Non-ACX Version 2-3 each server
PCIe 1x Powered Risers (http://www.newegg.com/Product/Product.aspx?Item=9SIA32C1EC4586)
You get plenty of adapters that come with the 1x risers so you can convert SATA and the 4-pin molex connectors to 6pin PCIe power jacks and to power the risers. I recommend at least a 650W PSU, single 12v rail. Make sure it has enough SATA and 4 pin connectors to run a 4 pin molex to each card and a 6pin PCIe connector to the top of the GPU. For the most part I dedicated 1 line off the PSU to powering the riser and the GPU. With a 2-3 non-ACX cards running off the powered risers. I have all six running on each of my rigs.
I wouldn't try to run more than one non-ACX style GPU in a setup without a powered riser as it will go beyond PCIe power specs (75W) and you run the risk of frying the traces in your mobo.
November 08, 2014, 08:45:57 PM
Hmm, dunno why, but when I run your settings 2 of my 6 cards run at 1.4 - 2.0 kh/s. The rest run at 3.43. The rig is with 8 gigs of ram, so the ram should't be the issue.
I get the same low hash on windows 8 but on vista I always get 3.5. Some thing about windows itself.It is good to realize that Nvidia needs lot of more trafic between main board (chipset, CPU, memory) and GPU than AMD.
Perhaps bottle neck come there just as one possible suspect about why.
What is HW combination what can really handle 6x GPU using maximal/enough datastream speed for all these.
AMD (O. CL) do not care example if use 1x risers (due to much less needed data trafic thru PCI-E). But Nvidia (Cuda) start suffer even in fastest HW system if use 1x communication with PCI-E. What HW (it need also look how CPU itself is related to this) is designed for handle with real full speed 6x Nvidia GPU data trafic through PCI-E. And still we are with easy Nfactor 14.
Also operating system may affect due to things how they share resources.
Are you using any of your mining cards to drive a monitor? That's a performance hit too. You actually get less warps because of the memory taken to run a screen. Do all the cards have adequate power? Make sure you are using the latest version of CudaMiner too. Earlier this year the Keccak portion had to be done single-threaded by CPU. Now, most everything can be offloaded into the GPUs.
I'm using Ubuntu Server 14.04. It's still not perfect. I always seem to have at least one card lagging a bit on each of my rigs- but not more than 10-15% from the highest at times. Earlier versions of CudaMiner performed part of the algos by CPU. I get 19-21khash on each 6 card rig.
Intel Celeron G1850 Dual Core 2.9GHz
ASRock H81 Pro
EVGA 750ti ACX Version (with 6pin power jacks) 3-4 each server
EVGA 750ti Non-ACX Version 2-3 each server
PCIe 1x Powered Risers (http://www.newegg.com/Product/Product.aspx?Item=9SIA32C1EC4586)
You get plenty of adapters that come with the 1x risers so you can convert SATA and the 4-pin molex connectors to 6pin PCIe power jacks and to power the risers. I recommend at least a 650W PSU, single 12v rail. Make sure it has enough SATA and 4 pin connectors to run a 4 pin molex to each card and a 6pin PCIe connector to the top of the GPU. For the most part I dedicated 1 line off the PSU to powering the riser and the GPU. With a 2-3 non-ACX cards running off the powered risers. I have all six running on each of my rigs.
I wouldn't try to run more than one non-ACX style GPU in a setup without a powered riser as it will go beyond PCIe power specs (75W) and you run the risk of frying the traces in your mobo.
November 08, 2014, 07:31:51 PM
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