Quote from: CarlWillhelmG on January 17, 2014, 08:30:56 AM

what i learned was that you should never use intensity 20 on a radeon 7990 ....
im running with these settings at 1400 kHs with one card:

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -I 13 -w 256 -g 2 --thread-concurrency 8192 -o.....

if you look at the hardware comp. on the litecoin wiki you see that this is the way to go on these cards

maybe thats helps your problem...

thanks for the reply i did try i13 with someone elses settings did work as well for me im getting a stable 1300 1350 from the good cards @ i20

my current settings

color 03

bfgminer --scrypt --temp-cutoff 98 --url=stratum+tcp://litecoinpool.org:3333 --userpass= --url=stratum+tcp://us.litecoinpool.org:3333 --userpass= --failover-only --thread-concurrency=24000 --intensity=20

Quote

If you reduce the core frequency, it might help.

ive not dropped the freq of the card but am running at 1160mv stable for heat i cant keep my loop cool enough without undervolting and if your looking at my setup and seeing bfgminer ive also tried cgminer 3.1.0 and 3.3.0 but cgminer wont read temps at all and bfgminer shows me temps but they dont match the cards as in they are the right temps but in the wrong order