Running Diagnostics on the Dell Latitude D600 Series of Laptops

Not sure if this works on other newer/older Dell laptops, but on the Dell Latitude D600 I have, you can run the built-in diagnostics by doing the following:

• Hold down the mute button
• Power on the laptop
• Depress the mute button once the diagnostics start to load/run

The 'word on the street' is that on some Dell Laptops it wont automatically run the Diagnostics, instead it will appear on the F12 menu and you can then run it from there.