# Performance and Troubleshooting

This section contains the following topics:

- Common Problems and Solutions

- Indicator Lights

- Dual-Port Adapters

- PCI Installation Tips

## Common Problems and Solutions

In addition to the table below, review the product release notes.

Problem | Solution
--- | ---
Your computer can't find the adapter | Make sure the adapter is seated firmly in the slot. Download the latest drivers from the Intel support web site: http://www.intel.com/network Try a different PCI bus master slot. See your server's documentation to identify bus master slots. Check to see if your motherboard has the latest BIOS. Make sure your PCI slots are v2.2 compatible. Try rebooting the computer. Try a different Intel adapter.
Diagnostics pass but the connection fails | Check the responding link partner and network cabling. Try running the Sender-Responder diagnostic test for PRO/100 or PRO/1000. Make sure the network cable is securely attached. Verify that the cable is the proper type. At 100 Mbps use Category 5 wiring. At 1000 Mbps, the CAT-5 cabling must also be 4-pair. Verify that the cable does not exceed the recommended lengths. Make sure the duplex mode and speed setting on the adapter matches the setting on the switch. At 100 Mbps, connect to a 100BASE-TX hub/switch (not 100BASE-T4).
Another adapter stopped working after you installed a second adapter | Make sure the cable is connected to the adapter. Make sure your PCI BIOS is current. See PCI Installation Tips. Check for interrupt conflicts and sharing problems. Make sure the other adapter supports shared interrupts. Also, make sure your operating system supports shared interrupts. Unload all PCI device drivers, then reload all drivers. Try reseating all adapters.
The adapter stopped working without apparent cause | Try reseating the adapter in its slot or different slot, if necessary. The network driver files may be damaged or deleted. Remove the drivers, and then reinstall them. Try rebooting the computer. Try a different adapter. Run diagnostics for PRO/100 or PRO/1000.
The link light is off | Run the adapter and network tests described in Test the Adapter. Make sure you've loaded the adapter driver. Check all connections at the adapter and the switch. Try another port on the switch. Try another cable. Make sure that the link partner is configured to auto-negotiate (or forced to match adapter). Make sure the duplex mode setting on the adapter matches the setting on the switch.
The link light is on, but communications are not properly established | The adapter's link indicator light may light even if communications between the adapter and its link partner have not been properly established. Proper configuration of link partners require that both sides be set to either auto-negotiate or manually set to the same speed and duplex settings. Failing to do so will create an invalid configuration. Technically, the link indicator light represents the presence of a carrier signal but not necessarily the ability to properly communicate with a link partner. This is expected behavior and is consistent with IEEE's specification for physical layer operation.
RX or TX (or ACT) light is off | Make sure you've loaded the network drivers. Network may be idle; try logging in from a workstation. Try another adapter.
The PRO/100 or PRO/1000 diagnostic utility reports the adapter is "Not enabled by BIOS". | The PCI BIOS isn't configuring the adapter correctly. Try PCI Installation Tips.
The computer hangs when the drivers are loaded. | Change the PCI BIOS interrupt settings. See PCI Installation Tips.

If none of these works, check the Tech Sheet document that came with the adapter or contact Customer Support.

## Check the Indicator Lights

The PRO/1000 F Gigabit Server Adapter has the following indicator lights:

| Label | Indication | Meaning
TX | On | The adapter is sending data.
RX | On | The adapter is receiving data.
LINK | On | The adapter is connected to a valid link partner and is receiving link pulses.
Off | No link.
not labeled | flashing | Identity. Use the "Identify Adapter" button in Intel® PROSet II to control blinking. See Intel PROSet II Help for more information.

The PRO/1000 T Server Adapter has the following indicator lights:

| Label | Indication | Meaning
not labeled | Flashing | Identity. Use the "Identify Adapter" button in Intel® PROSet II to control blinking. See Intel PROSet II Help for more information.
LNK | On | The adapter is connected to a valid link partner.
Off | No link.
ACT | On | Data is being transmitted or received
Off | No data activity.
10/100/1000 | Off | 10 Mbps
Yellow | 100 Mbps
Green | 1000 Mbps

The PRO/1000 XT Server Adapter has the following indicator lights:

| Label | Indication | Meaning
ACT/LNK | Green on | The adapter is connected to a valid link partner.
Green flashing | Data activity
Off | No link.
Yellow flashing | Identity. Use the "Identify Adapter" button in Intel® PROSet II to control blinking. See Intel PROSet II Help for more information.
10=OFF 100=GRN 1000=YLW | Off | 10 Mbps
Green | 100 Mbps
Yellow | 1000 Mbps

The PRO/1000 MT Server Adapter has the following indicator lights:

| Label | Indication | Meaning
ACT/LNK | Green on | The adapter is connected to a valid link partner.
Green flashing | Data activity
Off | No link.
Yellow flashing | Identity. Use the "Identify Adapter" button in Intel® PROSet II to control blinking. See Intel PROSet II Help for more information.
10=OFF 100=GRN 1000=YLW | Off | 10 Mbps
Green | 100 Mbps
Yellow | 1000 Mbps

The PRO/1000 MT Dual Server Adapter has the following indicator lights:

| Label | Indication | Meaning
ACT/LNK | Green on | The adapter is connected to a valid link partner.
Green flashing | Data activity
Off | No link.
Yellow flashing | Identity. Use the "Identify Adapter" button in Intel® PROSet II to control blinking. See Intel PROSet II Help for more information.
10=OFF 100=GRN 1000=YLW | Off | 10 Mbps
Green | 100 Mbps
Yellow | 1000 Mbps

The PRO/1000 MF Server Adapter has the following indicator lights:

| Label | Indication | Meaning
ACT/LNK | On | The adapter is connected to a valid link partner.
Blinking | Adapter is actively passing traffic.
Off | No link.

The PRO/1000 MF Dual Port Server Adapter has the following indicator lights:

| Label | Indication | Meaning
ACT/LNK | On | The adapter is connected to a valid link partner.
Blinking | Adapter is actively passing traffic.
Off | No link.

The PRO/1000 XF Server Adapter has the following indicator lights:

| Label | Indication | Meaning
LNK | On | The adapter is connected to a valid link partner.
Off | No link.
ACT | On | Data is being transmitted or received.
Off | No data activity.
not labeled | Flashing | Identity. Use the "Identify Adapter" button in Intel® PROSet II to control blinking. See Intel PROSet II Help for more information.

| NOTE: Fiber-based adapters operate only at 1 gigabit. They do not step-down in speed.

### Other Items to Check

- Download the latest drivers from the Intel support web site: http://www.intel.com/network

- If the LINK light is not on, check all connections at the adapter and link partner. Make sure the link partner matches the adapter, and the driver is loaded. (On gigabit adapters, the link indicator will not be active until the driver is loaded.)

- Make sure the cable is installed properly. The network cable must be securely attached at all connections. If the cable is attached but the problem persists, try a different cable.

  - For copper connections, make sure the cable is Category-5 or better. For gigabit speed, make sure the cable is also 4-pair.

  - For fiber connections, make sure the cable is SX mode. Check to see if the Rx and Tx port connectors have been reversed.

- Test the PRO/100 or PRO/1000 adapter. Run the adapter and network tests.

- All Intel adapters must use the same version of driver software (Gigabit adapters use a different type of driver software than the 10/100 adapters, but the rule still applies.)

If none of these works, check the Late-breaking News document that came with the adapter or check the Intel support Web site. See Intel Customer Support for information on connecting to Intel's online services.

## Dual-Port Adapters

This applies to you if are adding a non-dual-port adapter to a server which has one or more Intel PRO/100 dual port adapters.

The Intel PRO/100 Dual-Port adapter incorporates a PCI bridge device which allows the card to appear as two adapters to the PCI bus controller.

When configuring a multi-adapter environment - when one of the adapters is a dual-port device (such as the Intel PRO/100+ or PRO/100 S Dual Port) - you must upgrade all Intel adapters in the computer to the latest software.

If the computer has trouble detecting both ports, consider the following:

- Your operating system may need to re-enumerate the bus. To force the re-numeration, uninstall or unload the drivers for all PCI devices installed and shutdown the computer. Then restart the computer and reinstall or reload all drivers.

- Some computers may need BIOS upgrades to properly detect the adapter's bridge chip and both ports.

## PCI Configuration Troubleshooting

If the adapter is not recognized by your OS or if it does not work you may need to change some BIOS Setup program settings. Try the following only if you are having problems with the adapter.

- You may need to change the Plug and Play setting in your computer's BIOS. See your computer's manual for instructions on how to access.

- Enable the PCI slot. In some PCI computers, you may need to use the BIOS Setup program to enable the PCI slot. This is especially common in PCI computers with the PhoenixBIOS.*

- Enable the slot for bus master. You must install the network adapter in a bus master slot. Some BIOS Setup programs require you to enable the slot for bus master/master. Check your BIOS Setup program and the computer's documentation to make sure the slot is set for bus master/master.

- Configure the slot for level-triggered interrupts. The PCI slot the adapter is using must be configured for level-triggered interrupts instead of edge-triggered interrupts. Check your BIOS Setup program to make sure triggering is set up.

- Reserve interrupts and/or memory addresses into the BIOS. This prevents PCI cards from trying to use the same settings as ISA cards. Check your BIOS Setup program; there may be IRQ options such as Enable for ISA or Disable for PCI.

Here are some examples of BIOS Setup program parameters:

> PCI slot #: Slot where the adapter is installed (1-3)
> Master: ENABLED
> Slave: ENABLED
> Latency timer: 40 - 80
> Interrupt: Choose any one of several that the BIOS Setup provides.
> Edge-level: Level

The exact wording of the parameters varies with different computers.

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