Computer restarting on its own and the tower wont stop buzzing?

Question

My computer is running fine but I have 2 problems when I shut down my computer it restarts on its own and my tower makes a buzzing sound. I am not sure if this is all connected. I am not sure what to do because I aint had the computer that long I dont have the money to buy a new computer. This is accually a good computer it runs fine apart from these problems

Answer 1

sounds like a faulty PSU and needs changing. the other problem may go away if you do this

If it is new take it back

Answer 2

It sounds like overheating to me.

Make sure your computer room is well ventilated and the fans are not obstructed e.g pushed right up against the wall.

You may also need to get some compressed air and an anti-static cloth to clean inside the machine. If you do, do this then you will need to ground yourself with an anti-static strap.

Answer 3

Run it with the case open and see if all the fans are working.  Your symptoms cold be caused by overheating.  

Answer 4

There are many conditions that can cause this problem.  Honestly, there are loads!  You'd be best off taking it to a shop and getting them to sort it for you.  NOT PCWorld!!!!!!!

Answer 5

your RAM/memory sticks could be loose.i had the same problem and when i pushed them back in it stopped. or your pc may be overheating but if its new thats unlikely.then again if its new your memory shouldnt be loose.i duno,fone tech support?lol. btw if u open the tower,your garentee will be invalid.

Answer 6

Run a virus scan.