Reference Guide

BIOS Settings Name Description Supported
Operating
System(s)
• Disabled
• Enabled
CPU Snoop Mode
Configures the CPU snoop mode.
Possible values are:
• Early snoop — Enables early snoop mode. Use this mode for
latency-sensitive applications that do not require high
remote bandwidth.
• Home snoop — Enables home snoop mode. Use this mode
for applications that require high memory bandwidth.
• Cluster on Die — Enables cluster on die mode. Dell
recommends this mode for NUMA-optimized applications to
achieve lowest local memory latency, and highest local
memory bandwidth.
• Opportunistic Snoop — Enables opportunistic snoop mode.
Directory with Opportunistic Snoop Broadcast (OSB) offers
a good balance of latency and bandwidth.
• No snoop — Enables no snoop mode.
Windows, Linux
CPU Virtualization Technology
Enables or Disables CPU Virtualization.
Possible values are:
• Disabled
• Enabled
Windows
Deep Sleep Control Configures the system power mode when the system is in S4
and S5 state. If set to S5only, the system moves to the lowest-
Power Off mode only in S5 state. If set to S4 and S5 state, the
system moves to the lowest-Power Off mode in both S4 and S5
states. When the system is in low-power mode, it turns off most
of the power-consuming circuitry, to meet the 1 W power limit. It
Disables PME, USB power, etc.
Possible values are:
• S5 only
• S4 and S5
• Disabled
Windows, Linux
Dell Reliable Memory Technology Configures the system to detect and correct the software errors
in a block of RAM. When Enabled, the system detects and
corrects the software errors.
Possible values are:
• Disabled
• Enabled
Windows, Linux
Dell Wyse P25 Bios Access Turns on or off the access to the BIOS setup through Dell Wyse
P25 PCoIP client.
Possible values are:
• On
• Off
Windows
dGPU External Display
Enables or Disables discrete Graphics Procession (GPU) Unit
external display.
Possible values are:
• Disabled
• Enabled
Windows, Linux
254 BIOS settings supported in Dell Command | Monitor 10.3