Ps3 not turning on

Hi all,

Hope all is well,

I have a PS3 Slim 320 which wont turn on. The green light and the eject button work but nothing on screen. The only way I rectify this is by holding down on the power button and restoring but as soon as its been turned off for 10 minutes or more the same thing happens. I have to reset the PS3. Ive taken the hard drive out and restored on the pc and tried that, no joy. When the PS3 does switch on it works flawlessly. I have searched google and all I find is holding down power button to reset.

Thanks to all

 

Update - Not sure if this was the most sensible idea but I have placed 4 pennies on the chip to apply more pressure and it now works. Not sure how long it will last and still don't know why it was doing this in the first place.