User guide

System Troubleshooting 11–5
Publication 6181-UM001D-EN-P
If characters are not displayed on an external monitor:
√ Is the monitor functioning properly?
√ Is the video cable properly installed?
√ Check that selected character color is not set the same as the
background color.
√ Is the video driver properly installed?
√ Reboot the RAC6181 Computer with the external monitor connected
and powered up.
If the hard drive active LED indicator does not come on when the hard
drive is being accessed:
√ Check the EIDE cable connections to the drive.
√ Check BIOS Setup for proper configuration. Is drive enabled?
√ Check the connections on the I/O board.
√ Reboot the RAC6181 Computer.
If the Power On LED indicator does not come on:
√ Check the front panel connector on the processor board.
√ Check the power cord.
√ Check the connections on the I/O board.