Owners Manual
Viewing Processor Settings
About this task
To view the Processor Settings screen, perform the following steps:
Steps
1 Turn on, or restart your system.
2 Press F2 immediately after you see the following message:
F2 = System Setup
NOTE: If your operating system begins to load before you press F2, wait for the system to nish booting, and then restart
your system and try again.
3 On the System Setup Main Menu screen, click System BIOS.
4 On the System BIOS screen, click Processor Settings.
Processor Settings details
The Processor Settings screen details are explained as follows:
Table 29. Processor Settings
Option Description
Logical Processor Enables or disables the logical processors and displays the number of logical processors. If
this option is set to Enabled, the BIOS displays all the logical processors. If this option is
set to Disabled, the BIOS displays only one logical processor per core. This option is set to
Enabled by default.
Virtualization Technology Enables or disables the virtualization technology for the processor. This option is set to
Enabled by default.
Adjacent Cache Line Prefetch Optimizes the system for applications that need high utilization of sequential memory
access. This option is set to Enabled by default. You can disable this option for applications
that need high utilization of random memory access.
Hardware Prefetcher Enables or disables the hardware prefetcher. This option is set to Enabled by default.
DCU Streamer Prefetcher Enables or disables the Data Cache Unit (DCU) streamer prefetcher. This option is set to
Enabled by default.
DCU IP Prefetcher Enables or disables the Data Cache Unit (DCU) IP prefetcher. This option is set to Enabled
by default.
Sub NUMA Cluster Enables or disables the Sub NUMA Cluster. This option is set to Enabled by default.
Logical Processor Idling Enables you to improve the energy eciency of a system. It uses the operating system
core parking algorithm and parks some of the logical processors in the system which in
turn allows the corresponding processor cores to transition into a lower power idle state.
This option can only be enabled if the operating system supports it. It is set to Disabled by
default.
Congurable TDP Enables you to recongure the processor Thermal Design Power (TDP) levels during POST
based on the power and thermal delivery capabilities of the system. TDP veries the
maximum heat the cooling system is needed to dissipate. This option is set to Nominal by
default.
36 Installation and Service Manual
Pre-operating system management applications