Manual

Troubleshooting • 37
Appendix A. Troubleshooting
If you have any problems with your system, please check the following items prior to calling
for support.
C/Ports
Red link status indicator on PC blade and C/Port
• Check cables for correct pin-out, which is the same as for standard Ethernet over CAT5
cable. Check that all wire pairs are terminated properly.
– Pin 1 and 2 are pairs
– Pin 3 and 6 are pairs
– Pin 4 and 5 are pairs
– Pin 7 and 8 are pairs
• Check the back edge of the PC blade for any debris that may be causing incomplete
contact between the blade and the connectors in the chassis.
• Check for debris on all RJ-45 jacks.
• Certify the cable with a cable analyzer.
• For a dual processor PC blade, verify the C/Port cable is plugged into the even numbered
port (e.g., for a PC blade installed in chassis slots 3 and 4, the C/Port cable should be
plugged into port 4).
No link status indicator light
• Troubleshooting procedure is the same as above.
Poor video quality
• Re-adjust the C/Port.
• Check for cabling problems.
• Replace monitor and re-adjust C/Port.
• Use monitor auto adjust utility for flat panel LCD monitors.
• Set refresh frequency to 60 Hz for LCD monitor or try varying the refresh rate to find the
best picture quality.
• For LCD monitors, use the monitor’s native resolution, or the manufacturer’s
recommended resolution.