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Video test error codes
USB diagnostics
USB test
Human interface devices
52
Hardware Maintenance Manual: xSeries 380
Test Name
640 x 480
Displays a 16 color screen, then fills the screen
Graphics Test
with random colors, then returns to a blank
screen.
For the video test error codes, see "Video test error codes" on page 243.
The USB tests diagnose problems with USB peripherals.
Select USB Test from the USB menu to diagnose problems with USB peripherals and
to make sure that USB support is provided in the system BIOS.
From this screen, you can diagnose problems with a USB keyboard, USB mouse or
USB Hub.
USB keyboard tests
This test diagnoses USB keyboard hardware functionality and determines the data
transfer rate between the USB host controller and the USB keyboard. This test tests
the USB keyboard key codes and keystrokes.
To run the test, select Device Test from the USB menu. Select USB Keyboard test and
press <Enter>. There are four sub tests available for USB keyboard test:
•
USB Keyboard Control Test,
•
USB Keyboard Code Test,
•
USB Keyboard LED Test, and
•
USB Keyboard PnP Test.
The following test parameters appear:
Test Description
Type of Monitor
Only VGA adapters.
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