Quote from: induktor on February 22, 2014, 01:15:32 PM

Hello
I don't know guys how can you make it work with -g 2, if I try to use more than 1 thread inmediately have error -5
I tried with 1, 2 and 3 cards, also tried with 4GB, 8GB and 12GB of system RAM
my GPUs are MSI R9 280X GAMING 3G, asus mobo M5A78L
Windows 7 x64 driver 13.1

Using 1 thread, it works but I need 8GB system of ram, doesn't work with 4GB, and if I add more than 2 cards, I need 12GB of system RAM.

the best I was able to do was 265KH which is very low, I was expecting 300KH per card at 950/1250 Mhz

what do you think?, am I missing something?
thanks!
Indtk

Hey induktor, I have the same cards, i'm using this and I have around 330-340 kh/s

export GPU_USE_SYNC_OBJECTS 1
export GPU_MAX_ALLOC_PERCENT 100
.\vertminer.exe -o stratum+tcp://eu.vertcoin.org:8080 -u xxx.xxx -p xxx -I 13 -w 256 --thread-concurrency 8192 --lookup-gap 2 --gpu-engine 1000 --gpu-memclock 1500 --gpu-powertune 20 --auto-fan --temp-overheat 90

EDIT: I have 4 Gb mem in a dual card system and it is working, I will putting together the 4 cards on Monday because the riser cables just arrived, I will let you know how much ram needed for that