Product guide

105
Chapter Five Problem Solving
Verifying Proper Operation of
Key Systems
As POST determines the system configuration, it tests for the presence of each
mass storage device installed in the system. As each device is checked, its
activity LED should briefly turn on. Check for the following:
q Does the Floppy Disk drive activity LED briefly illuminate? If not, see
“Diskette Drive Activity LED Does Not Illuminate”.
q If a second diskette drive is installed, does its activity LED briefly
illuminate? If not, see “Diskette Drive Activity LED Does Not Illuminate”.
q If there is a Hard Disk drive or SCSI devices installed in the system, does
the Hard Disk drive activity LED on the control panel briefly illuminate? If
not, see “Hard Disk Drive Activity LED Does Not Illuminate”.
Confirming Loading of the
Operating System
Once the system boots up, the operating system prompt appears on the screen.
The prompt varies according to the operating system. If the operating system
prompt does not appear, see “Initial System Startup”.
Specific Problems and
Corrective Actions
This section provides possible solutions for these specific problems:
q Power LED does not illuminate.
q There is no beep or an incorrect beep pattern.
q No characters appear on the monitor.
q Characters on the monitor appear distorted or incorrect.
q System cooling fans do not rotate.
q Floppy Disk drive activity LED does not illuminate.
q Hard Disk drive activity LED does not illuminate.
q CD-ROM drive activity LED does not illuminate.
q There are problems with the application software.
q The bootable CD-ROM is not detected.
Try the solutions in the order given. If you cannot correct the problem, contact the
vendor’s service representative or the authorized Micron dealer for help.
Power LED Does Not Illuminate
Check the following:
q Is the system operating normally? If so, the power LED is probably
defective or the cable from the front panel to the server board is loose.
q Are there other problems with the system? If so, check the items listed
under “System Cooling Fans Do Not Rotate Properly.”