Installing an additional microprocessor

The following notes describe the type of microprocessor that the server supports and other information that you must consider when installing a microprocessor:

vThe server supports certain Intel Xeon dual-core or quad-core flip-chip land grid array 771 (FC-LGA 771) microprocessors, which are designed for the LGA771 socket. See http://www.lenovo.com/accessories for a list of supported microprocessors.

Important: Dual-core and quad-core microprocessors are not interchangeable and cannot be used in the same server. For example, if the server has a dual-core microprocessor, you cannot install a quad-core microprocessor as the second microprocessor. Use the Configuration/Setup Utility program to determine the type and speed of the microprocessor that is currently installed in the server.

vThe server supports up to two microprocessors. If the server comes with one microprocessor, you can install a second microprocessor.

vBoth microprocessors must have the same cache size and type, front-side bus frequency, and the same clock speed. Microprocessor internal and external clock frequencies must be identical.

vWhen you install an additional microprocessor in microprocessor connector 2, you must also install the voltage regulator module (VRM), which comes with the microprocessor, in the VRM connector.

vRead the documentation that comes with the microprocessor to determine whether you must update the basic input/output system (BIOS) code for the server. To download the most current level of BIOS code and many other code updates for your server:

1.Go to: http://www.lenovo.com/support.

2.Enter your product number (machine type and model number) or select Servers from the Select your product list.

3.Select Servers from the Brand list.

4.From Family list, select ThinkServer RD120, and click Continue.

5.Click Downloads and drivers to download firmware updates.

v(Optional) Obtain an SMP-capable operating system. For a list of supported operating systems and optional devices, go to http://www.lenovo.com/support/.

vTo order additional microprocessors, contact your Lenovo marketing representative or authorized reseller.

vThe microprocessor speeds are automatically set for this server; therefore, you do not have to set any microprocessor frequency-selection jumpers or switches.

vIf you have to replace a microprocessor, call for service.

vIf the thermal-grease protective cover (for example, a plastic cap or tape liner) is removed from the heat sink, do not touch the thermal grease on the bottom of the heat sink or set down the heat sink.

vDo not remove the first microprocessor from the system board to install the second microprocessor.

The following illustration shows the microprocessor connector locations and other microprocessor-related components on the system board.

18ThinkServer RD120 Types 6444, 6445, 6446, and 6447: Installation Guide