Post
Topic
Board Altcoin Discussion
Re: So I can mine BTC....but not LTC
by
Spetznaaz
on 11/05/2013, 00:17:18 UTC
Yes, those were the exact steps I followed. Like the OP I also only had example.conf. The "setx GPU_MAX_ALLOC_PERCENT 100" command returned okay. cgminer just crashes when I try to use it with --scrypt.

If it's crashing it's probably down to thread concurrency - Have a look for the thread concurrency others have been using for your card.

After following the above method this what I got....

http://anonymouse.org/cgi-bin/anon-www.cgi/http://anonymouse.org/cgi-bin/anon-www.cgi/http://anonymouse.org/cgi-bin/anon-www.cgi/http://img401.imageshack.us/img401/2623/testnewnew.png
?
I'll let this run and see if it crashes after a while.  I should also note the low hashrate...but I'll play with that later if this works.  Would the setting max gpu be required every time?

Yeah that low hashrate is a bit strange.

Play around with your GPU clock speeds, set it even lower, then keep going up and hashrate should increase, then suddenly decrease. When it decrease just keep backing up 1Mhz at a time and you should find the sweet spot.

You should also decrease your core voltage, try 1100mV, it will get temps down (i know they are already low, but they will go up when your hashrate increases).

Setting max gpu is needed everytime you restart your PC, but not every time you restart cgminer.

Also make sure the page file thingy has been set correctly on your PC - i was having loads of problems till i realised it was set to 0 - so i changed it to the max permitable of my main HDD and all was good Smiley

Edit - also try varying the value of  -s  --expiry  --thread-concurrency, see if that helps. You could also try higher intensities but i don't think that will be the issue. Don't forget though, if you go for a high intesnity, you will probably need to use -g 1 rather than 2