Table 12. Memory Settings details(continued)
Option Description
DIMM Self-Healing (Post Package
Repair) on Uncorrectable Memory
Error
Enables or disables Post Packing Repair (PPR) on uncorrectable memory
error. By default, this option is set to Enabled.
Processor settings
Access processor settings
Steps
1. To view the Processor Settings screen, power on the system and press F2.
2. Click System Setup Main Menu, System BIOS, and then Processor Settings.
Table 13. Processor Settings details
Option Description
Logical Processor Each processor core supports up to two 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 Allows you to govern the frequency of the communication links among the processors in
the system.
NOTE: The standard and basic bin processors support lower link frequencies.
The options available are Maximum data rate, 16.0 GT/s, 14.4 GT/s, and 12.8 GT/s.
By default, this option is set to Maximum data rate. Maximum data rate indicates that
the BIOS runs the communication links at the maximum frequency that the processors
support. 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 access and
cache coherency traffic. In addition, it can slow access to non-local I/O devices from
a particular processor. If power-saving considerations outweigh performance, reduce the
frequency of the processor communication links. Before reducing the frequency, you must
localize the memory and I/O access to the nearest NUMA node to minimize the impact to
system performance.
Virtualization Technology Enables or disables the virtualization technology for the processor. By default, this option
is set to Enabled.
Directory Mode Enables or disables the directory mode. This option is set to Enabled by default.
Kernel DMA Protection By default, this option is set to Disabled. When the option is set to Enabled, the BIOS and
operating system use virtualization technology to enable direct memory access protection
for DMA-capable peripheral devices.
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 DCU streamer prefetcher. This option is set to Enabled by default.
DCU IP Prefetcher Enables or disables the 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 Disabled by default.
MADT Core Enumeration Specifies the MADT Core Enumeration. This option is set to default in Round Robin.
Linear option supports industry core enumeration whereas, Round Robin option supports
Dell optimized core enumeration.
Pre-operating system management applications 25
To Next Page
Loading...
