i have few innosilicon t2tz and it stop working once a day and i should reboot it
Does it happen in any specific schedule or is it just some random events? if the miners stop working around the afternoon then there is a chance that they overheat.
alao there is a way i make this miners more heat point?
No, you can't and you shouldn't be doing that, just increase the fan speed to 100%, if that doesn't solve any heat issues, you have to move more air, add some exhaust fans, meanwhile maybe shut-down half of them so that the other half doesn't get way too hot.