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GTX 750 Ti mining - Page 95

post #941 of 1291
Quote:
Originally Posted by ccRicers View Post

I don't know what BC algo is, but it's irrelevant since you can only buy it, not mine it at this point.

Still frustrated at these technical setbacks I'm having with my rig. Windows crashes too much with most of my cards on risers, and Kopiemtu hangs on boot... I sent a message on the Litecointalk forums to the OS dev about this problem. Gonna try his solution later today. I'm almost ready to sell off my mining hardware because the software has gotten too unreliable for me.

Actually you can mine at the BC multipool. Technically they mine other coins, but pay you in BC.
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Me Rig
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HTPC
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Phenom
(12 items)
 
CPUMotherboardGraphicsRAM
i7-5820k X99 Extreme4 MSI GTX 1070 SEA HAWK X Corsair Vengeance Series 32GB 
Hard DriveHard DriveOptical DriveCooling
Seagate 1Tb Samsung 840 SSD Sony 22X Dual Format/Double Layer DVD±R/±RW Hydro Series H80i 
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i7 920 MSI Pro e x58 4 - Xfx R9 280x Black DD Corsair 1600mhz 12gn 
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Crucial 128 SSD Windows 8.1 2xCorsair CS750m 
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post #942 of 1291
It's pretty clever...it will keep BC price high, artificially xD
post #943 of 1291
Yeah im not sure how its going to pan out actually. Mining it hasn't really profited for me.

Im holding half BC, half VTC.

Bought into a bunch of VTC on the latest dump.
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i7 920 MSI Pro e x58 4 - Xfx R9 280x Black DD Corsair 1600mhz 12gn 
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i7 2700k Gigabyte Z68MA-D2H-B3 Palit Gtx 480 w/Antec 620 Mod Crucial 16GB Kit DDR3  
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post #944 of 1291
I am having trouble getting KopiemTu to start. Here is the first screen, since entering "root" doesn't do anything, I hit enter and get to the boot messages.




It always stops at the last message you see here, then it reboots after 15 minutes or so, and I get taken to the boot prompt again. So much for an out-of-the-box mining experience.
post #945 of 1291
Seems like it didn't download properly or something...probably not detecting the gpus.

Try xinit, and then startx.

I'd redownload the latest beta: https://mega.co.nz/#!a0IC0RIB!mFWqNx3y_WdF4S57AqS3hC-Z2sP8-Gx6n0Yeex9UGKA

Comes with pool manager (same as the bamt software for farm managing)
post #946 of 1291
ccRicers

Have you tried booting a full linux distro like Ubuntu or manjaro?

I have just recently got into mining, i run a 24/7 server anyway so though i would stick a few 750ti's in there. I run Arch Linux and have been flicking between Execoin, HeavyCoin, GroestlCoin and Vertcoin. Currently groestlcoin atm.

My 3 video cards are EVGA SC Single fan models. All plugged into USB 1-16x powered risers. Using the integrated intel video for my monitor.

I have managed to overclock all 3 to GPU - 1290mhz Mem - 3200(6400) mhz using a modded bios. All seem stable.

Regarding the software, ive not had a single crash and its been mining a week of various coins so from my perspective the software seems very stable. Hats off to cbuchner1 & co for the great work on ccminer and cudaminer.
I have downloaded all the software/wallets from there respective git repositories and compiled ok. Had to do some linking of some libraries to begin with but subsequent compiles have been fine.

Some interesting cli commands for querying your GPU's
nvidia-sli
....../cuda/samples/1_Utilities/deviceQuery/deviceQuery - Shows gpu/memory clock speeds.
Code:
+------------------------------------------------------+                       
| NVIDIA-SMI 334.21     Driver Version: 334.21         |                       
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce GTX 750 Ti  Off  | 0000:02:00.0     N/A |                  N/A |
| 40%   31C  N/A     N/A /  N/A |     40MiB /  2047MiB |     N/A      Default |
+-------------------------------+----------------------+----------------------+
|   1  GeForce GTX 750 Ti  Off  | 0000:03:00.0     N/A |                  N/A |
| 40%   33C  N/A     N/A /  N/A |     40MiB /  2047MiB |     N/A      Default |
+-------------------------------+----------------------+----------------------+
|   2  GeForce GTX 750 Ti  Off  | 0000:04:00.0     N/A |                  N/A |
| 40%   37C  N/A     N/A /  N/A |     40MiB /  2047MiB |     N/A      Default |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Compute processes:                                               GPU Memory |
|  GPU       PID  Process name                                     Usage      |
|=============================================================================|
|    0            Not Supported                                               |
|    1            Not Supported                                               |
|    2            Not Supported                                               |
+-----------------------------------------------------------------------------+
  GPU Clock rate:                                1291 MHz (1.29 GHz)
  Memory Clock rate:                             3200 Mhz
  GPU Clock rate:                                1291 MHz (1.29 GHz)
  Memory Clock rate:                             3200 Mhz
  GPU Clock rate:                                1291 MHz (1.29 GHz)
  Memory Clock rate:                             3200 Mhz

I will be happy to try and help anyone trying to setup on linux, im not a expert but can find my way around smile.gif.

Cheers

C
post #947 of 1291
Craigdabbs, did you compile CudaMiner by yourself? Because I couldn't see a straightfoward way to use CudaMiner aside from the KopiemTu mining distro. I tried the following:

Xubuntu 12.04 - Worked well when I was AMD GPU mining. But some of packages were too old and incompatible to use for building CudaMiner.
Xubuntu 13.10 - Display driver issues. Black screen after GRUB, also with trying nomodeset.
Ubuntu 13.10 - same as above
KopiemTu - same as above but it got partway through the boot message sequence and would reboot after 10 minutes. Will try other cards for the main display.
Edited by ccRicers - 4/14/14 at 7:59am
post #948 of 1291
Yes i compiled cudaminer and ccminer myself. Ill post up the process i used to see if it will give any insight. Manjaro is a very bleeeding edge distro wih up to date packages. Might be worth a go.
post #949 of 1291
make sure you have the cuda toolkit installed (its around 700mb)
take note to see where it installs it.
sudo find / -name 'cuda' should give you some idea

git clone https://github.com/cbuchner1/CudaMiner.git
cd cudaminer
./autogen.sh
./configure --with-cuda=path/to/cuda/folder
make
make install (run as sudo)

then cudaminer to start
post #950 of 1291
I put the iso for Manjaro on a USB stick and it loaded the OS and shell selection screen on boot. Neither OS variety (with proprietary or free drivers) would load correctly as it would just spit out "nouveau .... unknown" errors millions of times.

I know that this is related to the kernel driver, but I don't know where to disable it. Do I need to go into the UEFI shell to do this? Remember I cannot even get into the installer.

(edit) I finally remembered to press "e" for editing the boot options and removed the kernel driver modes and used "nomodeset" to load the text version of the installer. This went well with no problems. Upon restarting I still had issues with the X Server window system failing to start. Seems to be because of the default drivers. I uninstalled the nouveau and installed the proprietary nVidia driver. Still a no go with X Server.

Part of me thinks I'd have a much smoother setup process if I did everything with the monitor plugged into the port for using Intel's iGPU. My mobo only has HDMI and I don't have a HDMI-DVI cable, so I have been using one of the graphics cards to run the display all the time. I ordered a cable to use with the motherboard so hopefully drivers won't be an issue with the default display adapter.
Edited by ccRicers - 4/14/14 at 11:08pm
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