need help with sha512

[Gelle]

Code:

cd C:\Users\Gelle\Desktop\oclHashcat-lite-0.10
cudaHashcat-lite64 -m 1700 -n 8

25F047A2BCE22366FBEBAD14EDC14E9BE33CA57FECE7F806253D76686E60D0884C7A3

8CC5845DDD4C55C495749EE1DC16B938BB739D99FE3966BA0F734E73294 -1 ?l?d

?1?1?1?1?1?1?1?1
pause

I tryed -n 1, 8, 40, 160
I read a value of 80 is default.
nv dirver is the latest one
also tryed different loops and gpu-async in some different compinations

Code:

cd C:\Users\Gelle\Desktop\oclHashcat-lite-0.10
cudaHashcat-lite64 -m 1700 -n 80 --gpu-loops=128 --gpu-async 25F047A2BCE22366FBEBAD14EDC14E9BE33CA57FECE7F806253D76686E60D0884C7A38CC5845DDD4C55C495749EE1DC16B938BB739D99FE3966BA0F734E73294 -1 ?l?d ?1?1?1?1?1?1?1?1
pause

System:
Q9400 @3,2
GTX275