problems with litecoin mining

[realestone]

im trying to test litecoin mining i have the 11.6 catalyst installed and sdk 2.1 but when i run the .bat file cgminer just sits there and doesnt run then it hangs and i have to close it out can anyone help me? im testing it on a radeon 5830

[Damnsammit]

It takes a little bit of work.  I am using a 5850... had a few problems when I first started.  Reinstalled windows, and am using Catalyst 13.1 now with no problems.

Can you get it to work with GUIminer?  If so, then it might just be a problem with your cgminer command.

[realestone]

i'll try guiminer and report back thanks for the quick reply

[realestone]

i tried guiminer scryt it closes out immediately and tells me to open a log file this is in the log file


Traceback (most recent call last):
  File "guiminer.py", line 20, in <module>
  File "pyopencl\__init__.pyo", line 4, in <module>
  File "pyopencl\_cl.pyo", line 12, in <module>
  File "pyopencl\_cl.pyo", line 10, in __load
ImportError: DLL load failed: The specified procedure could not be found.

[Damnsammit]

Can you mine BTC with it? 

When I first set up my 5850, I could use GUIMiner on BTC, but couldn't mine any scrypt coins.  I did a fresh install of Win7, put 13.1 on there, and then everything worked fine.

[bkpduke]

Are you overclocked?  I had a lot more difficulty mining LTC when overclocked than BTC just due to the much higher RAM usage on the video card.

[realestone]

Are you overclocked?  I had a lot more difficulty mining LTC when overclocked than BTC just due to the much higher RAM usage on the video card.

i did a fresh install of windows 7 earlier and yes it mines btc with cgminer but ltc cgminer  just crashes

[Damnsammit]

Are you overclocked?  I had a lot more difficulty mining LTC when overclocked than BTC just due to the much higher RAM usage on the video card.

i did a fresh install of windows 7 earlier and yes it mines btc with cgminer but ltc cgminer  just crashes

What pool are you using?  Post up your command line.

Is it just opening the command prompt window and immediately exiting or is it crashing after a specific point?

I was getting nonce errors with mine in cgminer, but that was cleared up when I did a fresh install and used 13.1 instead of 13.3

[realestone]

here is the command line im using below i replaced my username and password with x and when i run the bat file it says starting cgminer 3.2.0 and does nothing else then i have to force close it im using wemineltc

cgminer.exe --scrypt -o stratum+tcp://stratum.wemineltc.com:3333 -u xxxxx.1 -p xxxxx -I 13

[Damnsammit]

Sorry, I have no idea.  Never had an issue like that before

[realestone]

what amd sdk are you guys using when you mine ltc? when i try 13.1 and sdk 2.1 i cant bitcoin mine or ltc mine ive tried 12.8 also didnt work the only sdk i can mine btc on is 2.1 and catalyst 11.6 so far so maybe i should try updating the sdk to get ltc working? im running out of ideas

[Damnsammit]

what amd sdk are you guys using when you mine ltc? when i try 13.1 and sdk 2.1 i cant bitcoin mine or ltc mine ive tried 12.8 also didnt work the only sdk i can mine btc on is 2.1 and catalyst 11.6 so far so maybe i should try updating the sdk to get ltc working? im running out of ideas

I'm running a 6950 and 5850 with Catalyst 13.1 - no need to install SDK with that version.

I tried like 10 different versions, and reinstalled Win7 before getting to this point though.  Now I am having no issues except for my 5850 going SICK and DEAD, but I have cgwatcher to help me combat that. 

[realestone]

i'll try installint 13.1 without sdk and see if that works thanks for everyones help btw

[realestone]

ok i played around with it and installed sdk 2.8 its mining ltc now but its only going 123Kh/s my command line is below are some settings i can do to make it get higher hasrate


cgminer.exe --scrypt -o stratum+tcp://stratum.wemineltc.com:3333 -u xxxxx p 12345 -I 13

[Addz]

With more ASICs entering the network I can see this becoming much more common among GPU miners.  I'm planning to switch mine over in the next 48 hours so I'll post back with some results and help when it's all done.

[realestone]

ok thanks alot i appreciate it

[realestone]

try with -w 256 --lookup-gap 2 and --thread-concurrency 6144, 5120 or 4096

then try cranking up the intensity. 16-20 tend to give the highest rates, but lag the machine considerably more than 14-15

well some more toying with it i used the settings below and the hashrate tripled now its going at 310Kh/s but it get incredibly hot im talking 82c so i have to shut it down using a radeon 5830


setx GPU_MAX_ALLOC_PERCENT 100
cgminer.exe --scrypt -o stratum+tcp://stratum.wemineltc.com:3333 -u xxxxx -p 12345 -I 17 -w 256 -g 1 --gpu-engine 950 --gpu-memclock 1250   --thread-concurrency 5600

[Snub]

try with -w 256 --lookup-gap 2 and --thread-concurrency 6144, 5120 or 4096

then try cranking up the intensity. 16-20 tend to give the highest rates, but lag the machine considerably more than 14-15

well some more toying with it i used the settings below and the hashrate tripled now its going at 310Kh/s but it get incredibly hot im talking 82c so i have to shut it down using a radeon 5830


setx GPU_MAX_ALLOC_PERCENT 100
cgminer.exe --scrypt -o stratum+tcp://stratum.wemineltc.com:3333 -u xxxxx -p 12345 -I 17 -w 256 -g 1 --gpu-engine 950 --gpu-memclock 1250   --thread-concurrency 5600

I always found setting the fan with a program outside of cgminer worked best for me

Try EVGA precision or MSI afterburner. Doesnt matter what make your card is.

[maryanne23]

I've never been able to get mine working either, even tried other currencies.

[realestone]

try with -w 256 --lookup-gap 2 and --thread-concurrency 6144, 5120 or 4096

then try cranking up the intensity. 16-20 tend to give the highest rates, but lag the machine considerably more than 14-15

well some more toying with it i used the settings below and the hashrate tripled now its going at 310Kh/s but it get incredibly hot im talking 82c so i have to shut it down using a radeon 5830


setx GPU_MAX_ALLOC_PERCENT 100
cgminer.exe --scrypt -o stratum+tcp://stratum.wemineltc.com:3333 -u xxxxx -p 12345 -I 17 -w 256 -g 1 --gpu-engine 950 --gpu-memclock 1250   --thread-concurrency 5600

I always found setting the fan with a program outside of cgminer worked best for me

Try EVGA precision or MSI afterburner. Doesnt matter what make your card is.

i will give it a shot i changed the thermal paste on the gpu and i set the fan speeds to raise with the tempature with msi afterburner thanks for everyones help