7950's wont start up, 290x's seem to be working fine

[shadowandlight]

I've been fighting this all day.... I tried both batch file arguments as well as using the .conf file.

I have 2 7950's (HIS) and 2 290x (Sapphire) running off 2 separate 1k watt PSU's.

Here is my batch file for cgminer

(The 290x are apparently device 0 and device 3 per cgminer -n)
https://i.imgur.com/Wjwz8EG.png

Code:

@echo off
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
"C:\Users\Miner\Desktop\Coin Mining\Litecoin\cgminer-3.7.2-windows\cgminer.exe" --scrypt -o stratum+tcp://middlecoin.com:3333 -u xxxxx -p x -I 20,17,17,20 -w 256,256,256,256 --lookup-gap 2,1,1,2 --thread-concurrency 24000,15236,15236,24000 -g 2 --temp-hysteresis 5 --auto-fan --temp-target 85 --gpu-powertune 20,20,20,20

Here is what cgminer is showing as well as my msi afterburner settings

https://i.imgur.com/CuX1nMh.png

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[Silvano]

try this

lookup gap 2,2,2,2
g 2 for 290, g 1 for 7950
tc 7950=24000 (mine work good)
intensity 13 for 290, 19 or 20 for 7950.
for that i read, 290 works better on "w" 512
try to use SGminer i gain more than 10khs only with this.