Alienware AW2518H - Display Built-in Diagnostics (BID) Self Test; Purpose of BID Self Test; Running the BID Self Test Procedure

Figure 7. - Location of Alienware logo lighting and Triad lights
Display Built-in Diagnostics (BID) Self Test
AW2518HB has a built-in diagnostic tool that helps you determine if the screen abnormality you
are experiencing is an inherent problem with your monitor, or with your computer and video
card.
To run the built-in diagnostics:
1. Ensure that the screen is clean (no dust particles on the surface of the screen).
2. Unplug the video cable(s) from the back of the computer or monitor. The monitor then
goes into the self-test mode.
3. Press and hold Button 3 for 5 seconds. A gray screen appears.(Figure 8.)
Figure 8. - Running the built-in diagnostics
4. Carefully inspect the screen for abnormalities.
5. Press Button 3 again. The color of the screen changes to red.
6. Inspect the display for any abnormalities.
7. Repeat steps 5 and 6 to inspect the display in green, blue, black, and white screens.