Asus M4A89GTD PRO Supplementary Manual page 19

Keyboard/Mouse
Note: This is an interactive test.
Keyboard/Mouse Test items:

Keyboard Test
After you start the test, press a key on the keyboard. Ensure that the key shown on the
test screen is the same as the one you pressed.
Note: This test only starts when you use a 105-key standard keyboard. If some of the
keys on your keyboard cannot be found on the test screen, do not test the keys.
Keyboard Test Screen (Click the items to get more information.)