CCminer(SP-MOD) Modded GPU kernels.

[tbearhere]

Google it

http://www.tech-recipes.com/rx/36092/windows-7-and-8-change-the-size-of-virtual-memory/

Its at 16 gig should I add more... set that a long time ago.

[sp_]

Google it
http://www.tech-recipes.com/rx/36092/windows-7-and-8-change-the-size-of-virtual-memory/

Its at 16 gig should I add more... set that a long time ago.

16gig is Enough..
 Can you try with  lower intensities? Use -X 10 , -X 11, -X 12... What is the highest that works?

Ccminer -a qubit --benchmark -X 10

[tbearhere]

Google it
http://www.tech-recipes.com/rx/36092/windows-7-and-8-change-the-size-of-virtual-memory/

Its at 16 gig should I add more... set that a long time ago.

16gig is Enough..
 Can you try with  lower intensities? Use -X 10 , -X 11, -X 12... What is the highest that works?

Ccminer -a qubit -- benchmark - X 10

1x 750ti 2 980ti  1x 970 gtx soon to be 2x 970gtx

And I went through all that for a whole day. The only thing that works 90% of the time is  no oc'ing no intensities no nothing but stock.
I found the intensity that seemed to work cut my hashrate in half.

[tbearhere]

This has been going on since the first time you started saying, set intensity, on the thread 5 months ago.

[sp_]

It could be a riser problem. What motherboard do you have? It could be a fuse/cable problem how many rigs are connected to the same fuse.It could be a faulthy card. It could be a driver problem.( old drivers can crash on newer cards, and some of the newest drivers have issues too)

[fenomenhaa]

750ti cards have a coreclock of around 1100-1400 and the hashrate depends on the clock.

Optimal settings(oc) (core of around 1390)

Quark: 7mhash
Qubit: 5mhash
Lyra2v2: 5.3 mhash
X11: 3.45mhash
X13:2.6mhash
X15:2.4Mhash
Lyra2re: 1.2mhash
Neoscrypt: 240mhash (cuda 6.5 build)
Decred: 640mhash
Vcash: 1000mhash
Pentablake:32 mhash

The algos use from 40-60 watt per card if you have a platinum powersupply. You can run a 6x 750ti rig on a 500w psu, but I recomend 700+. To get the best hashrates you need to increase the tdp of your card from 38w to 65w. In the Bios or use the nvsmi tool


I normally don't release linux versions, only windows. But the decred and vcash sourcecode is available for a extra fee

@sp could u send me private 5 again. All algo's at least %10 worser then this in my miner.

[sp_]

750ti cards have a coreclock of around 1100-1400 and the hashrate depends on the clock.

Optimal settings(oc) (core of around 1390)

Quark: 7mhash
Qubit: 5mhash
Lyra2v2: 5.3 mhash
X11: 3.45mhash
X13:2.6mhash
X15:2.4Mhash
Lyra2re: 1.2mhash
Neoscrypt: 240mhash (cuda 6.5 build)
Decred: 640mhash
Vcash: 1000mhash
Pentablake:32 mhash

The algos use from 40-60 watt per card if you have a platinum powersupply. You can run a 6x 750ti rig on a 500w psu, but I recomend 700+. To get the best hashrates you need to increase the tdp of your card from 38w to 65w. In the Bios or use the nvsmi tool
I normally don't release linux versions, only windows. But the decred and vcash sourcecode is available for a extra fee

@sp could u send me private 5 again. All algo's at least %10 worser then this in my miner.

What hashrates are you getting?

[sp_]

I forgot something. Version #4 is faster on the 750ti since it has 2 exe files. One tuned for compute 5.0 and one for 5.2

[Longsnowsm]

Thanks for the info SP_,  I thought I read somewhere that there was an issue with Win 7 and 6 gpu rigs?  Are you aware of such a limitation?  So Win 7 or Win 8?  You have a preference as far as getting these rigs running?  Thanks.

[scryptr]

Thanks for the info SP_,  I thought I read somewhere that there was an issue with Win 7 and 6 gpu rigs?  Are you aware of such a limitation?  So Win 7 or Win 8?  You have a preference as far as getting these rigs running?  Thanks.

DUAL PSU MAY CAUSE POWER BACKFEED--

Which will lead to crashing on high-power rigs.  I have also heard that an Intel motherboard is better for 6 GPUs than an AMD motherboard.  The 6 GPU rig is possible, but there are more experienced minds than mine.  My 6 750ti rig is rock solid, but more powerful rigs may be difficult.  My 6 750ti cards run on linux, with a dual core bargain AMD CPU.  With an identical set of hardware, 5 GTX 960 cards + 1 750ti were never stable, even with a bigger 1000W PSU.  I tried Win 7 and Linux, and now run linux with 5 GTX 960 cards with the same single 1000W PSU.

Wish I could help more.       --scryptr

[Longsnowsm]

Thanks Scrypter,  I am building a 6 gpu 750ti rig myself.  Sounds like you have that running well on Linux?  Which miner are you using?  I have a Asrock Intel mobo, i3 cpu and trying to figure out the best way to get the most out of these 750ti's that I just bought for this rig.  Any feedback would be awesome.  I was looking at the SP-MOD's and it looked like SP_ is getting some of the best hash rates out of the Maxwell cards.  So that is why I posted here looking for input.  Are there any pros or cons to Linux vs Windows for these rigs?  Thanks again!

[scryptr]

Thanks Scrypter,  I am building a 6 gpu 750ti rig myself.  Sounds like you have that running well on Linux?  Which miner are you using?  I have a Asrock Intel mobo, i3 cpu and trying to figure out the best way to get the most out of these 750ti's that I just bought for this rig.  Any feedback would be awesome.  I was looking at the SP-MOD's and it looked like SP_ is getting some of the best hash rates out of the Maxwell cards.  So that is why I posted here looking for input.  Are there any pros or cons to Linux vs Windows for these rigs?  Thanks again!

PROS AND CONS OF LINUX--

Linux is a more difficult OS for some, normally you must learn the compilation process for a piece of mining software.  Windows generally is easier to operate, but often does things "on its own"; there is less control at times.  The code author sp_ writes software for Windows, and his private mining software is generally released pre-compiled for Windows.  He has his critics, but produces fast mining software.

All my rigs are Linux, save one single-card working rig that I do work on besides mining.  It is Win 7 x64 (recommended).  I like to compile and run from source code.  Linux is very stable when properly set up and maintained.  I have several Linux rigs that run for a month at a time unattended.  Ubuntu 14.04.xx is recommended for Linux, and Lubuntu 14.04.xx is recommended for very small (16-32GB) drives.  Lubuntu is my choice for a stable, unattended, headless rig.  A miner can run Lubuntu on a 8-16GB USB stick or SSD drive.  There is no licence fee for Linux.  I compile sp_ 's public releases on Linux and it is relatively easy.  

If you want to mine ETH with a 750ti, you need Linux, because of memory problems on Windows.  There are 4GB 750ti cards out there, but not many mining reports regarding their use with ETH.  On Linux, a 2GB 750ti will mine at 4MH/s and that is only 50% efficiency. Personally, I wish someone would put together a 4GB 750ti rig, mine ETH at 8MH/s, and report it.  Actually, most miners will not mine ETH with a 750ti.  I currently miine FeatherCoin (FTC) with my 750ti rig.  Ethminer software for CUDA is maintained by Genoil.

A 6-card 750ti rig can run with no problem on a 750W Bronze or better quality PSU.  This gives ample extra power.  A 600W Gold PSU is good enough, but may be pressed by the most powerful 750ti cards (6 of them).

That is the simple start.       --scryptr

[tbearhere]

It could be a riser problem. What motherboard do you have? It could be a fuse/cable problem how many rigs are connected to the same fuse.It could be a faulthy card. It could be a driver problem.( old drivers can crash on newer cards, and some of the newest drivers have issues too)

ON MY 2X  2 CORE RIGS  NEVER ON MY 2X 4 CORE.

[tbearhere]

750ti cards have a coreclock of around 1100-1400 and the hashrate depends on the clock.

Optimal settings(oc) (core of around 1390)

Quark: 7mhash
Qubit: 5mhash
Lyra2v2: 5.3 mhash
X11: 3.45mhash
X13:2.6mhash
X15:2.4Mhash
Lyra2re: 1.2mhash
Neoscrypt: 240mhash (cuda 6.5 build)
Decred: 640mhash
Vcash: 1000mhash
Pentablake:32 mhash

The algos use from 40-60 watt per card if you have a platinum powersupply. You can run a 6x 750ti rig on a 500w psu, but I recomend 700+. To get the best hashrates you need to increase the tdp of your card from 38w to 65w. In the Bios or use the nvsmi tool


I normally don't release linux versions, only windows. But the decred and vcash sourcecode is available for a extra fee

@sp could u send me private 5 again. All algo's at least %10 worser then this in my miner.

These aren't the true hashrates
quark 6.8 mh
neo .197 kh
x15 2.2

ect

[sp_]

ON MY 2X  2 CORE RIGS  NEVER ON MY 2X 4 CORE.

But As you said you had a 10 second switch in the miner control software that switch between algos. There might be a crash if ccminer starts, and the process get killed right afterwards.

[sp_]

These aren't the true hashrates
quark 6.8 mh
neo .197 kh
x15 2.2
ect

With oc you can push it higher. I have users reporting quark @ 7.5 mhash with max oc. on the 750ti.

[sp_]

PROS AND CONS OF LINUX--

With linux you loose 20-30% of your profit because you cannot run the fastest x86 private miners. You cannot run claymores decred+etherum miner. You cannot overclock.(Perhaps if you mess with the Cool bits). The 64bit build is using more power.

[tbearhere]

WHEN THAT CRASH REPORT COMES UP... I WONDER HOW TO GET AROUND THAT ALL IT NEEDS I TO CLOSE THEN IT WILL MINE AUTOMATICALLY

[sp_]

wich driver are you using? You can disable the windows notification in the registry, so that the program just crash and end without a dialog.

https://www.raymond.cc/blog/disable-program-has-stopped-working-error-dialog-in-windows-server-2008/

[sp_]

Actually, you can OC, change voltage, and more quickly and simply do your OWN dev on *nix. Just because YOU can't learn how to flash your cards doesn't mean no one can.

True, but you still miss the fastest private bins.. I have found a solution though.. To load the gpu binary files with API calls, then I can distribute the GPU-binaries . But it will require a rewrite of ccminer.