Use the command-line interface to issue setup commands. You can save any of thesettings as a file and run the file as a script. The ASU program supports scriptingenvironments through a batch-processing mode.For more information and to download the ASU program, go tohttp://www.ibm.com/systems/support/.Activating 1333 MHz operation in two-DIMM-per-channel configurationNote: Information in this section is specific to server models with an Intel XeonX5570 microprocessor.If you install two supported DDR3-1333 DIMMs in a channel on server models withan Intel Xeon X5570 microprocessor, you must use the ASU tool to set the serverto operate at 1333 MHz in a two-DIMM-per-channel (2DPC) configuration.To enable the server to operate at 1333 MHz, complete the following steps:1. Update the server firmware to the latest level (see “Updating the firmware” onpage 255).2. Download the Advanced Settings Utility (ASU). Go to http://www-947.ibm.com/systems/support/supportsite.wss/docdisplay?brandind=5000008 or complete thefollowing steps:a. Go to http://www.ibm.com/systems/support/.b. Under Product support, select System x.c. Under Popular links, select Tools and utilities.d. In the left pane, click System x and BladeCenter Tools Center.e. Scroll down and click Tools reference.f. Scroll down and click the plus-sign (+) for Configuration tools to expand thelist; then, select Advanced Settings Utility (ASU).g. In the next window under Related Information, click the Advanced SettingsUtility link and download the ASU version for your operating system.3. After you have installed ASU, use the following command:asu set uefi.Plt2DPC1333Capable Enable4. Set the memory frequency:v Using ASU:a. Use the following command:asu set uefi.Plt2DPCOverclock Enableb. Restart the server.v Using the Setup utility:a. Press F1 to access the Setup utility.b. Select System Information→ Memory → 2DPC Max Frequency; thenchange the memory frequency to 1333.c. Save the changes and restart the server.5. Verify that the memory operates at 1333 MHz:v Check the system information displayed on the monitor during POSTv Press F1 to start the Setup utility and select System Information→ MemorySpeedv DMIDECODE/pDSA tool272 IBM System x3550 M3 Types 4254 and 7944: Problem Determination and Service Guide
