Such as incorrect BIOS settings (try defaults) and a failing HDD.
I can't tell how old but Dell has some diagnostics and my question is do they show what's failed?
bob
When I go to start my computer, it goes fine until it goes to boot and then it says no boot device detected. And then it says
Sata0: installed
Sata1: installed
Sata2: not detected
Sata3: not detected
If I go into the boot menu it shows the hard drive on SATA0 and if I select it manually it does boot up. Why won't it boot up normally? Also once it boots doing this manual method it won't let me shut it dow. Just sticks on "windows is shutting down"

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