First off I am new to mining. I have been mining for the past few weeks on a GT430 and really not had any problems. Yesterday I got in a Radeon HD6870 to use for mining litecoins. I set up the script started it up and no shares were being submitted. The only way I can get shares to submit is if I have the intensity set to 10 or less which nets me ~90-100kh/s, anything higher and it connects and just sits there. The only thing that it will show me at this point is Long Poll has detected a new block, I get no accepts or rejects. I am currently running:
the latest cgminer
13.1 catalyst(I have tried everything from 12.1 up to 13.1 with no changes)
http://ltc.kattare.com:9332 pool
Script is set up as follows:
cgminer --scrypt -o
http://ltc.kattare.com:9332 -u xxxxxxxx -p xxxxxxxx --shaders 1120 --intensity 10 --worksize 64 -g 1
I have adjusted worksize as well my hashrate goes down as size goes up still no submits above 10
Could it just be a hardware issue? The computer I installed the new card in is fairly old Pentium D 3.2 GHz duel core with 3gigs rams, also power supply is slightly under rated for the card. (Computer will be replaced within the next few weeks)
I have tried every mix of settings with MSI Afterburner changing my clock and memory speeds and nothing seems to help.
Not sure what else it could be, any help would be greatly appreciated.
