Hello.
I still have problem.. Version 4.1 works great and I need restart once per week. But if I was try any newest version 4.2 to 4.6, always miner crash between 1 and 2 hours.. Where can be problem ? I would like use monitor, but is not possible. Btw ver 4.1 give me 167MHs and other newest just 165MHs
I have 5x Sapphire R9 390.

Here is my config from 4.1 and from latest 4.6.

4.1 config:
setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100

cd C:\Users\ETHRig1\Desktop\CDM 4.1

EthDcrMiner64.exe -epool eu1.ethermine.org:4444 -ewal (ethaddress) -eworker ETHRig1 -epsw x -esm 1 -mode 1 -tt -100,-100,-100,-100 -cclock 1170,1170,1170,1170 -mclock 1500,1500,1500,1500 -etha 0 -ethi 16

4.6 config:

setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100

C:\Users\ETHRig1\Desktop\CDM 4.6

EthDcrMiner64.exe -epool eu1.ethermine.org:4444 -ewal 0x(eth address) -eworker ETHRig1 -epsw x -esm 1 -mode 1 -gser 2 -r 20 -tt 65,65,65,65,65 -fanmax 100,100,100,100,100 -cclock 1170,1170,1170,1170,1170 -mclock 1500,1500,1500,1500,1500 -etha 0 -ethi 8 -eres 2 -erate 1 -estale 1 -tstop 80,80,80,80,80 -mport 3333

I was try change ethi param, but without success..

Thank you for answer.

Pivan78