Hi DougMacHi,
I’d suggest that you follow the steps mentioned below and check if the system starts up.
- Switch off the computer.
- Disconnect the power cable from the wall.
- Press and hold down the power button for 15 seconds.
- Then connect back all the peripherals and check if the system switches ON.
If the system is switching ON then I would suggest that you run the diagnostics on the computer by following the steps mentioned below and check if there is any issue with the hardware on your system.
- Turn on or restart the computer.
- Immediately at the Dell logo screen, starting tapping the <F12> key once a second until the One Time Boot menu appears (if the computer boots to Windows turn the computer off and try again).
- At the One Time Boot menu, press the <Down> arrow key to highlight Diagnostics, PSA+ or Enter ePSA, then press <Enter> to begin the hardware Diagnostics.
- Write down any error codes listed. Reply to us with the error codes.