The AC adapter and wattage cannot be determined.
The system performance is unpredictable.
Please connect a Dell 180 Watt adapter and restart.
Or press F1 and continue.
It has the AC Addapter in use that came with the PC and has worked OK until now and still seems to be working OK.
I have been to the UK Dell site and I was going to email them unfortunately I cant as the first thing they want to know is the TAG Number and its not recognized. The PC is three weeks old and is registered.
I googled this and it seems to be common with laptops this is a desktop any advice would be appreciated.
I would still ring Dell with your problems even if it is to sort out the problem with the TAG number not recognized. Make sure you have your receipt info handy. As it's virtually out of the box I wouldn't be happy.