IBM IntelliStation Z Pro 6221, Hardware Maintenance Manual

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5. Locate the CMOS recovery jumper (JBAT1) on the system board, removing
any adapters that impede access to the jumper. An illustration showing the
location of the jumper on the system board appears at “Recovering from a
POST/BIOS update failure” on page 23.
6. Move the CMOS recovery jumper from pins 1 and 2 to pins 2 and 3.
7. Wait 60 seconds; then, return the CMOS recovery jumper to pins 1 and 2
8. Replace any adapters that were removed; then, replace the support bracket
and replace the side cover. (See “Removing and installing the support bracket”
on page 42 and “Replacing the side cover” on page 62.)
You can now start the computer one time, and start the Configuration/Setup
Utility program, without having to use the power-on password. At this time, you
can either delete the old password or set a new user password. If you do not
change or delete the password, the next time you start the computer the
original user password will be reinstated.
9. Connect the computer to a power source, keyboard, monitor, and mouse.
10. Turn on the computer. The Configuration/Setup Utility program starts.
11. Follow the instructions to erase the existing password or create a new
password.
12. Select Save Settings and press Enter.
Troubleshooting the Ethernet controller
The Ethernet controller documentation on the Device Drivers and IBM Enhanced
Diagnostics CD contains information about problems that might occur with the 1
Gbps Ethernet controller.
This section provides troubleshooting information for some of the problems that
might occur with the Ethernet controller.
Network connection problems
If the Ethernet controller cannot connect to the network, check the following:
v
Make sure that 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 controller to operate at 100 Mbps, you must use Category
5 cabling.
If you directly connect two workstations (without a hub), or if you are not using a
hub with X ports, use a crossover cable.
Note: To determine whether a hub has an X port, check the port label. If the
label contains an X , the hub has an X port.
v
Determine if the hub supports auto-negotiation. If not, try configuring the
integrated Ethernet controller manually to match the speed and duplex mode of
the hub.
v
Check the LAN activity light on the rear of the server. The LAN activity light
illuminates when the Ethernet controller sends or receives data over the Ethernet
network. If the LAN activity light is off, make sure that the hub and network are
operating and that the correct device drivers are loaded.
v
Make sure that you are using the correct device drivers, supplied with the server.
v
Check for operating system-specific causes for the problem.
v
Make sure that the device drivers on the client and server are using the same
protocol.
Diagnostics
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