NEC Express5800 Series Maintenance Manual page 73

Chapter 2 Useful Features
(a) Boot Time Optimizations Menu
When you select System Configuration > BIOS/Platform Configuration (RBSU) > System Options> Boot
Time Optimizations from the System Utilities, the Boot Time Optimizations menu appears.
For details about the options, see the table below.
Option
Extended Memory Test
Memory Fast Training
UEFI POST Discovery Mode
Memory Clear on Warm Reset
Parameter
When enabled, the system validates memory during
Enabled
the memory initialization process. If uncorrectable
[Disabled]
memory errors are detected, the memory is mapped
out, and the failed DIMMs are logged to the
Integrated Management Log (IML). Enabling this
option can result in a significant increase in the
server boot time.
This option enables a boot time reduction by
[Enabled]
controlling when the BIOS bypasses the full memory
Disabled
training. When enabled, the server bypasses the full
memory training during boot, and uses memory
parameters determined on a previous boot to
decrease boot time. Note that even when enabled,
the BIOS performs a full memory training if the
DIMM configuration or processor configuration
changes, or if there is a change in any BIOS setting
related to memory or processor configuration. When
disabled, the server performs a full memory training
on every server boot.
Use this option to configure the UEFI POST
[Auto]
Discovery Mode. When Auto is selected, the system
Force Full Discovery
selectively starts devices which are required for
Force Fast Discovery
booting the devices in the UEFI Boot Order list.
Note: For some situations with auto mode like
system configuration change, the system will
change to start all devices for discovering all boot
devices. When Force Full Discovery is selected, the
system starts all devices in the system providing full
boot device availability.
time might significantly increase. When Force Fast
Discovery is selected, the system starts devices as
less as possible for getting the shortest boot time.
Note: When Force Fast Discovery is selected, some
unsupported device might not work properly. You
might need to replace the unsupported device with
the supported one.
Use this option to configure when memory is cleared
Enabled
on warm resets. When disabled, the contents of
[Disabled]
memory are only cleared on a warm reset if
requested by the operating system. When enabled,
memory is cleared on all reboots. Disabling this
option can save boot time by skipping the clearing of
memory on warm resets.
Express5800/R120h-1E, R120h-2E Maintenance Guide
Description
Note: When Force Full Discovery is selected, boot
[ ]: Default setting
1. System Utilities
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