Universal Serial Bus (Usb) Port Problems; System-Board Error Leds; Software Error Messages - IBM 622138U - IntelliStation Z - Pro 6221 User Manual

Universal Serial Bus (USB) port problems

Universal Serial Bus (USB)
port symptom
A USB device does not work.

System-board error LEDs

The following illustration shows the location of the LEDs on the system board. You
might need to refer to this illustration when solving problems with the computer.
Microprocessor 2
error LED
(D32)
Each error LED turns on to indicate a problem with a specific component. After a
problem is corrected, its LED will not turn on the next time the computer is
restarted; if the problem remains, the LED will turn on again. For information about
how to correct problems indicated by the error LEDs, see the "Diagnostic error
message tables" on page 74 and the"Troubleshooting charts" on page 78.

Software error messages

These messages appear if a problem or conflict is detected by the application
program, the operating system, or both. Error messages for operating system and
other software problems are typically text messages, but they also can be numeric
codes. For information about these software error messages, see the information
supplied with the operating system and application program.
To determine if problems are caused by the software, verify that:
v Your computer has the minimum memory requirements needed to use the
v The software is designed to operate on your computer.
Suggested action
Verify that:
v You are not trying to use a USB device during POST if you have a standard
(non-USB) keyboard attached to the keyboard port.
Note: If a standard (non-USB) keyboard is attached to the keyboard port, the
USB is disabled and no USB device will work during POST.
v The correct USB device driver is installed.
v The operating system supports USB devices.
If the problem remains, call for service.
software. For memory requirements, see the information that comes with the
software.
Note: If you have just installed an adapter or memory, you might have a memory
address conflict.
DIMM 1 error LED
(D27)
DIMM 2 error LED
(D26)
DIMM 3 error LED
(D29)
DIMM 4 error LED
(D28)
SCSI controller
status LED
(D45)
Chapter 5. Solving problems
85