asus padfone x RANDOM REBOOTS help !!! topic

Hi ,I just bough the ( padfone X) from a dealer on eBay my issue is it keeps on rebooting randomly for no reason I had tried everything from factory reset it ,also running device on safe mode clearing cache uninstalling wallpapers or unwanted apps I didn't need ,but once I managed to keep it alive I guess by keeping the apex launcher running in memory approximately for 3 days. was running smoothly no reboots happy until one day I was playing a game and suddenly just out of no where it restarted again ,and same problem returned. I tried to do the last same trick and no use. it kept on restarting(force rebooting) every 30-20 minutes ,also got little overheating not too hot but warm !!

setup further info *no rooting *AT&T unlocked *using nova(phone) ,apex(station) with the padfone launcher app a padfone thing *used for 2 weeks only *running on kitkat 4.4.2

padfone is awesome device I love it unfortunately still a messy device to handle . ANY HELP !!!:confused:

ohh and CPU reading is weird avg use sometimes is around 5% or 1% but the CPU GHz use is at maximum or stopped