PC Server 704 - Ethernet Adapter Troubleshooting (100/10 PCI)

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Document ID: DDSE-43WNRM

PC Server 704 - Ethernet Adapter Troubleshooting (100/10 PCI)

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Ethernet Adapter Troubleshooting (100/10 PCI)
The following troubleshooting information is for problems that might occur when the Ethernet adapter is installed in the server.

Network Connection Problems

If the adapter cannot connect to the network, check the following:
- Make sure the cable is installed correctly.
- The network cable must be securely attached at all connections. If the cable is attached but the problem persists, try a different cable.
- If you set the Ethernet adapter to operate at 100 Mbps, you must use Category 5 cabling.
- If you directly connect two workstations (no hub), use a crossover cable.
- Check the LEDs on the rear of the Ethernet adapter. The Ethernet adapter has three diagnostic LEDs beside the cable connecter. These lights help indicate whether a problem exists with the connecter, cable, or hub. The LNK LED illuminates when the adapter receives a LNK pulse from the hub. If the LED is OFF, there might be a bad connector or cable, or a problem with the hub. The LNK LED is also OFF when you run the diagnostic tests in the Setup program. The ACT LED illuminates when the adapter detects read or write activity on the network, even when there is no activity on the adapter. If the ACT LED is not on, make sure that the hub and network are operating and that the correct drivers are loaded. The 100 LED illuminates when a 100 Mbps connection is established.
- Make sure that you are using the correct drivers.
- Check for operating system-specific causes for the problem.
- Test the adapter. Select Test adapter from the Main Menu on the Ethernet adapter Configuration and Drivers diskette. How you test the adapter depends on which operating system is being used.

Ethernet Adapter Troubleshooting Chart (100/10 PCI)
You can use the following troubleshooting chart to find solutions to problems that have definite symptoms.

Adapter Problem

Action

The Setup program reports the adapter's interrupt as '0— or '255.—

The PCI BIOS is not configuring the adapter correctly.

The Setup program reports 'No PCI Bus.—

The PCI BIOS is not configuring the adapter correctly.

Workstation stops running when loading drivers

Change the PCI BIOS interrupt settings.

LNK LED does not light

Check the following:
Make sure you have loaded the network drivers.
Check all connections at the adapter and the hub.
Use another port on the hub.
If you forced the duplex mode, make sure that you also force the speed to either 10 or 100.
Make sure that the hub port is configured for the correct
speed (10 Mbps or 100 Mbps)
If you manually configured the duplex mode, make sure that you manually configure the speed also. See 'Installing Multiple Adapters— for more
information.

The ACT LED does not light.

Check the following:
Make sure that you have loaded the network drivers.
The network might be idle. Try sending data from this
workstation.
Use another Ethernet adapter.

Data is corrupted or sporadic.

Make sure that you are using Category 5 cabling when
operating at 100 Mbps.

The Ethernet adapter stopped working when another adapter
was added to the server.

Check the following:
Make sure that the cable is connected to the Ethernet adapter.
Make sure that your PCI system BIOS is current.
Reseat the adapter.

The adapter stopped working without apparent cause.

Check the following:
Reseat the Ethernet adapter or try a different connector.
Reinstall the drivers
Use a different Ethernet adapter.

Search Keywords

Document Category

Networking

Date Created

07-01-99

Last Updated

07-01-99

Revision Date

07-01-2000

Brand

IBM PC Server

Product Family

PC Server 704

Machine Type

8650

Model

TypeModel

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Adapter Problem	Action
The Setup program reports the adapter's interrupt as '0— or '255.—	The PCI BIOS is not configuring the adapter correctly.
The Setup program reports 'No PCI Bus.—	The PCI BIOS is not configuring the adapter correctly.
Workstation stops running when loading drivers	Change the PCI BIOS interrupt settings.
LNK LED does not light	Check the following: Make sure you have loaded the network drivers. Check all connections at the adapter and the hub. Use another port on the hub. If you forced the duplex mode, make sure that you also force the speed to either 10 or 100. Make sure that the hub port is configured for the correct speed (10 Mbps or 100 Mbps) If you manually configured the duplex mode, make sure that you manually configure the speed also. See 'Installing Multiple Adapters— for more information.
The ACT LED does not light.	Check the following: Make sure that you have loaded the network drivers. The network might be idle. Try sending data from this workstation. Use another Ethernet adapter.
Data is corrupted or sporadic.	Make sure that you are using Category 5 cabling when operating at 100 Mbps.
The Ethernet adapter stopped working when another adapter was added to the server.	Check the following: Make sure that the cable is connected to the Ethernet adapter. Make sure that your PCI system BIOS is current. Reseat the adapter.
The adapter stopped working without apparent cause.	Check the following: Reseat the Ethernet adapter or try a different connector. Reinstall the drivers Use a different Ethernet adapter.

	Search Keywords
	Document Category	Networking
	Date Created	07-01-99
	Last Updated	07-01-99
	Revision Date	07-01-2000
	Brand	IBM PC Server
	Product Family	PC Server 704
	Machine Type	8650
	Model
	TypeModel
	Retain Tip (if applicable)
	Reverse Doclinks and Admin Purposes