Dell PowerEdge 840 Hardware Owner's Manual (PDF) - Page 33

CPU Information Screens - virtualization

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Table 2-2. System Setup Program Options (continued) Option PCI IRQ Assignment Console Redirection System Security Keyboard NumLock (On default) Report Keyboard Errors (Report default) Asset Tag Description Displays a screen to change the IRQ assigned to each of the integrated devices on the PCI bus, and any installed expansion cards that require an IRQ. Displays a screen to configure serial communication, external serial connector, failsafe baud rate, remote terminal type, and redirection after boot. Displays a screen to configure the system password and setup password features. See "Using the System Password" on page 37 and "Using the Setup Password" on page 39 for more information. Determines whether your system starts up with the NumLock mode activated on 101- or 102-key keyboards (does not apply to 84-key keyboards). Enables or disables reporting of keyboard errors during the POST. Select Report for host systems that have keyboards attached. Select Do Not Report to suppress all error messages relating to the keyboard or keyboard controller during POST. This setting does not affect the operation of the keyboard itself if a keyboard is attached to the system. Displays the customer-programmable asset tag number for the system if an asset tag number has been assigned. CPU Information Screens Table 2-3 lists the options and descriptions for the information fields that appear on the CPU Information screen. Table 2-3. CPU Information Screen Option Description Bus Speed Displays the bus speed of the processor(s). Logical Processor (Enabled default) Displays when the processors support HyperThreading. Enabled permits all logical processors to be used by the operating system. Only the first logical processor of each processor installed in the system is used by the operating system if Disabled is selected. Virtualization Technology (Disabled default) Displays when the processor(s) support Virtualization Technology. Enabled permits virtualization software to use Virtualization Technology incorporated in the processor design. This feature can only be used by software that supports Virtualization Technology. Adjacent Cache Line Prefetch (Enabled default) Enables or disables optimal use of sequential memory access. Disable this option for applications that require high use of random memory access. Hardware Prefetcher (Enabled default) Enables or disables the hardware prefetcher. Using the System Setup Program 33

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Using the System Setup Program
33
CPU Information Screens
Table 2-3 lists the options and descriptions for the information fields that appear on the
CPU
Information
screen.
PCI IRQ Assignment
Displays a screen to change the IRQ assigned to each of the integrated devices on
the PCI bus, and any installed expansion cards that require an IRQ.
Console Redirection
Displays a screen to configure serial communication, external serial connector, fail-
safe baud rate, remote terminal type, and redirection after boot.
System Security
Displays a screen to configure the system password and setup password features.
See "Using the System Password" on page 37 and "Using the Setup Password" on
page 39 for more information.
Keyboard NumLock
(
On
default)
Determines whether your system starts up with the NumLock mode activated on
101- or 102-key keyboards (does not apply to 84-key keyboards).
Report Keyboard Errors
(
Report
default)
Enables or disables reporting of keyboard errors during the POST. Select
Report
for
host systems that have keyboards attached. Select
Do Not Report
to suppress all
error messages relating to the keyboard or keyboard controller during POST. This
setting does not affect the operation of the keyboard itself if a keyboard is attached
to the system.
Asset Tag
Displays the customer-programmable asset tag number for the system if an asset
tag number has been assigned.
Table 2-3.
CPU Information Screen
Option
Description
Bus Speed
Displays the bus speed of the processor(s).
Logical Processor
(
Enabled
default)
Displays when the processors support HyperThreading.
Enabled
permits all logical processors to be used by the operating system.
Only the first logical processor of each processor installed in the
system is used by the operating system if
Disabled
is selected.
Virtualization Technology
(
Disabled
default)
Displays when the processor(s) support Virtualization Technology.
Enabled
permits virtualization software to use Virtualization
Technology incorporated in the processor design. This feature can
only be used by software that supports Virtualization Technology.
Adjacent Cache Line
Prefetch
(
Enabled
default)
Enables or disables optimal use of sequential memory access.
Disable this option for applications that require high use of random
memory access.
Hardware Prefetcher
(
Enabled
default)
Enables or disables the hardware prefetcher.
Table 2-2.
System Setup Program Options
(continued)
Option
Description