HP PB 10 Power, = LED ON, Activity, = LED OFF, Figure B-1, 10 or 100 Mbit/s, RJ-45Connector (TX), 100-Mbit/sIndicator, Test (On=fail;Off=pass)

Hardware Reference Information

Basic Troubleshooting TipsBasic Troubleshooting Tips

Listed below are some tips on troubleshooting common hardware problems. Refer to this information when you are trying to identify 10/100Base-TX hardware problems.

•Check the network cables. Make sure the network cable connections are secure and that the cables are not damaged. If you find any connections that are loose, or cables that are damaged, fix the problem and then see if your computer can communicate on the network

•Check the LEDs. The six LEDs on the LAN card bulkhead can be used to help identify the problem. Figures 3 through 7 will help you to interpret the LED display.

Refer to the figure below to interpret the LEDs on the front of the card.

Figure B-1 LED Display for 10 or 100 Mbit/s Normal Operation

	= LED ON
	= LED OFF
Power	Test (On=fail;Off=pass)
RJ-45 Connector (TX)
100-Mbit/s Indicator	10-Mbit/s Indicator(On for 10Mbit/s)
Activity	Link Status (On=link established)
(On=Data transmitted/received)

10 or 100 Mbit/s

Refer to the following picture to see how the LEDs indicate a 10 or 100 Mbit/s fault condition. Note that if either the Link Status LED is OFF or

96 Appendix B