Option
Description
NVDIMM-N
Memory Serial
Number
Specifies information on the serial number of the NVDIMM-N.
NVDIMM-N
Factory Reset and
Secure Erase
Enables clearing data on specific NVDIMM-N and results in loss of data on that specific NVDIMM-N.
Processor Settings
You can use the
Processor Settings
screen to view the processor settings, and perform specific functions such as enabling virtualization
technology, hardware prefetcher, logical processor idling, and opportunistic self-refresh.
Viewing Processor Settings
To view the
Processor Settings
screen, perform the following 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 finish 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:
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.
CPU Interconnect
Speed
Enables you to govern the frequency of the communication links among the CPUs in the system.
NOTE:
The standard and basic bin processors support lower link frequencies.
The options available are
Maximum data rate
,
10.4 GT/s
, and
9.6 GT/s
. This option is set to
Maximum data rate
by default.
Maximum data rate indicates that the BIOS runs the communication links at the maximum frequency supported by
the processors. You can also select specific frequencies that the processors support, which can vary.
For best performance, you should select
Maximum data rate
. Any reduction in the communication link frequency
affects the performance of non-local memory accesses and cache coherency traffic. In addition, it can slow access
to non-local I/O devices from a particular CPU.
Dell EMC PowerEdge R640 Installation and Service Manual
Pre-operating system management applications
47
