I recently had to send my laptop back to Dell for some warranty work and when I got it back it had the same problem as before it went in. I was told that they replaced the system board but I am having my doubts. I'm going to send it back but before I do, is there any way short of opening up the case and looking (which I don't want to do) to uniquely identify the system board so that when I get it back I can verify that they did or did not replace the board?
The problem I am having is with the power supply. I get frequent pop-ups stating The AC power adapter type cannot be determined. Your system will operate slower and the battery will not charge. Please connect a Dell 90W AC adapter or higher for best system operation.
I also get a similar message on every boot requiring me to Press F1 to Continue, F2 to enter Setup or F3 to suppress further messages