Here ya go:
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -o stratum+tcp://stratum1.dogechain.info -u user.worker -p password -I 20 -g 1 -w 512 --thread-concurrency 32765 --lookup-gap 2 --gpu-powertune 30 --gpu-fan 85 --gpu-engine 927 --gpu-memclock 1250
I checked the mining pool and it didn't mention anything about being down and it still showed that they had processing power.
you have extra space before -o
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -o stratum+tcp://stratum1.dogechain.info -u user.worker -p password -I 20 -g 1 -w 512 --thread-concurrency 32765 --lookup-gap 2 --gpu-powertune 30 --gpu-fan 85 --gpu-engine 927 --gpu-memclock 1250
your ears can handle the 85% fan?