I tried everything, it always randomly restarts. When watching video, playing game and browsing, etc.
One time my battery drained so bad the charging indicator blinked orange. Mind you it was like 89% the last time I saw it at the very same day. Blinking orange is, for those who don't know, a signature of HTC devices when the battery is severely depleted, needs to be solid for device to power up.
Went back to stock, happy camper. I have to note that at first boot this tablet is slowww, even has trouble giving SU but after a while it's fast. I mean 1.5ghz should be enough anyway. I should have spent some time on stock before custom ROMs.