Activating 1333 Mhz Operation In Two-Dimm-Per-Channel Configuration - IBM System x3550 M3 Type 4254 Problem Determination And Service Manual

Use the command-line interface to issue setup commands. You can save any of the
settings as a file and run the file as a script. The ASU program supports scripting
environments through a batch-processing mode.
For more information and to download the ASU program, go to
http://www.ibm.com/systems/support/.

Activating 1333 MHz operation in two-DIMM-per-channel configuration

Note: Information in this section is specific to server models with an Intel Xeon
X5570 microprocessor.
If you install two supported DDR3-1333 DIMMs in a channel on server models with
an Intel Xeon X5570 microprocessor, you must use the ASU tool to set the server
to 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" on
2.
3. After you have installed ASU, use the following command:
4. Set the memory frequency:
5. Verify that the memory operates at 1333 MHz:
272
IBM System x3550 M3 Types 4254 and 7944: Problem Determination and Service Guide
page 255).
Download the Advanced Settings Utility (ASU). Go to http://www-947.ibm.com/
systems/support/supportsite.wss/docdisplay?brandind=5000008 or complete the
following 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 the
list; then, select Advanced Settings Utility (ASU).
g. In the next window under Related Information, click the Advanced Settings
Utility link and download the ASU version for your operating system.
asu set uefi.Plt2DPC1333Capable Enable
v Using ASU:
a. Use the following command:
asu set uefi.Plt2DPCOverclock Enable
b. Restart the server.
v Using the Setup utility:
a. Press F1 to access the Setup utility.
b. Select System Information→ Memory → 2DPC Max Frequency; then
change the memory frequency to 1333.
c. Save the changes and restart the server.
v Check the system information displayed on the monitor during POST
v Press F1 to start the Setup utility and select System Information→ Memory
Speed
v DMIDECODE/pDSA tool