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each time you turn on your server. The UEFI BIOS is a layer of software that translates instructions from
other layers of software into electrical signals that the server hardware can execute. You can use the
Setup Utility program to view or change the configuration settings of your server. See “Using the Setup
Utility program” on page 35.

Lenovo might make changes and enhancements to the BIOS. When updates are released, they are available
for download on the Lenovo Web site at http://www.lenovo.com/drivers. You can update the server firmware
by downloading an update package and following the instructions on the Web page.

You also can use the Firmware Updater program to help you keep the server firmware up-to-date. See
“Server setup procedure” on page 5.

Updating (flashing) the BIOS

This topic provides instructions on how to update (flash) the BIOS.

Notes:

• Update the BIOS on your server only if the newer BIOS version specifically solves a problem you have.

We do not recommend BIOS updates for servers that do not need them. You can view the updated
information for the new BIOS version in the installation instructions for the BIOS update utility program.

• Downgrading the BIOS to an earlier version is not recommended and might not be supported. An earlier

BIOS version might not contain the support for the latest system configurations.

• If the power to your server is interrupted while the POST and BIOS are being updated, your server might

not restart properly. Ensure that you perform the BIOS update procedure in an environment with a
steady power supply. Besides, ensure that your server can restart successfully without encountering
hardware problems.

• If you have updated the BIOS firmware, all the BIOS settings become the default settings of the updated

BIOS version. You need to check and reconfigure the BIOS settings for your specific needs.

To update (flash) the BIOS, do the following:

1. Go to http://www.lenovo.com/drivers and follow the instructions on the Web page to locate the BIOS

update package.

2. Download the BIOS update package and the TXT file that contains installation instructions.

3. Print the TXT file and follow the instructions to update (flash) the BIOS.

4. Check and reconfigure the BIOS settings for your specific needs based on your note or refer to “Using

the Setup Utility program” on page 35 after the BIOS update process is completed.

Configuring the Ethernet controllers

The Ethernet controllers are integrated on the system board. They provide an interface for connecting to
a 10 Mbps, 100 Mbps, or 1000 Mbps network and provide full-duplex (FDX) capability, which enables
simultaneous transmission and reception of data on the network.

You do not have to set any jumpers or configure the Ethernet controllers. However, you must install a device
driver to enable the operating system to recognize the controllers.

The device drivers for onboard Ethernet controllers are available for download at:
http://www.lenovo.com/drivers

Using the ThinkServer EasyStartup program

The ThinkServer EasyStartup program simplifies the process of configuring RAID and installing supported
Windows and Linux operating systems and device drivers on your server. The program works with your

Chapter 4

Configuring the server