thanks for replay
now its up and running
i used to have
hm2/hm2_7i92.0: error finishing read! iter=######)
but when i change it to performance now works well..
mybe im too greddy,,, but i was looking for high perfomance low power machine,, now its still very fast,, that i compile the kernel locally..
now it seems perfect machine,,
i will test more to see if the problem still there
it reappears... but when i disable the hyperthereading,,, now it works fine