My pc beeps or turns itself off

[Dizzy123]

When I turn my dell desktop on, it will power up fine then like 10 mins later it'll beep or just trun off, it beeps untill I hit the power button, then ill wait ten seconds or longer and turn it on again, sometimes it'll work fine somtimes it'll repeat what I said it does

 

[ccky]

You best bet is to contact dell support as they know more than us about their computers.