Hello,
I have posted on this problem before and thought I had this problem fixed however not the case. My 5 year old DELL works for about an hour or so and then shuts down and then just start toggling between power-up and shut down until I pull the plug. I thought it was a driver problem with me using a hard LAN connection driver and a wireless driver but that is not the case. I disabled the hard LAN connection driver and now soley rely on the wireless connection. I tried a new battery on the MB to no avail. I have not swapped out the Power supply yet. Any help is appreciated.
