CGminer tuning - one core not responding

Managed to get temp under control but can’t get right the tuning of core 3.
Picture 002 shows the core 3 parameters which do not respond to any change, but it shows that is hashing ok, core 2 shows almost no hashing but all parameters are same like core 0 and 1 (and changeable) :
Mem 1500Mhz
GPU 850Mhz

2 x MSI 7990

Don’t know where the problem lies, anyone ?

My bat file :
timeout /t 10
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -o stratum+tcp://coinotron.com:3334 -u xxxx -p xxxx -d 0,1,3,2 --intensity 13 -g 2 --thread-concurrency 8192 --gpu-vddc 1.087 --temp-target 76 --auto-fan --worksize 256 --scrypt
–failover-only -o stratum+tcp://pool2.d2.cc:3333 --scrypt -u xxxx -p xxxx

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