HP dc5700 - Manual (Page 20)

2–10 437804-001 Service Reference Guide, dc5700
Setup Utilities and Diagnostics Features
Security
(continued) Setup Security
Level
Provides a method to allow end-users limited access to change
specified setup options without having to know the Setup Password.
This feature allows the administrator the flexibility to protect changes
to essential setup options, while allowing the user to view system
settings and configure nonessential options. The administrator
specifies access rights to individual setup options in a case-by-case
basis via the Setup Security Level menu. By default, all setup options
are assigned Setup Password, indicating the user must enter the
correct Setup Password during POST to make changes to any of the
options. The administrator may set individual items to None,
indicating the user can make changes to the specified options when
setup has been accessed with invalid passwords. The choice, None,
is replaced by Power-On Password if a Power-On Password is
enabled.
Power OS Power
Management
• Runtime Power Management - Enable/Disable. Allows certain
operating systems to reduce processor voltage and frequency
when the current software load does not require the full
capabilities of the processor.
• Idle Power Savings - Extended/Normal. Allows certain
operating systems to decrease the processors power
consumption when the processor is idle.
• ACPI S3 Hard Disk Reset - Enabling this causes the BIOS to
ensure hard disks are ready to accept commands after
resuming from S3 before returning control to the operating
system.
• ACPI S3 PS2 Mouse Wakeup - Enables or disables waking from
S3 due to PS2 mouse activity.
• USB Wake on Device Insertion (some models) - Allows system to
wake from Standby on USB device insertion.
• Unique Sleep Blink Rates - This feature is designed to give the
user a visual indication of the sleep state the system is in. Each
sleep state has a unique blink pattern:
•S0 = Solid green LED
•S3 = 3 blinks at 1 Hz (50% duty cycle) followed by a pause
of 2 seconds (green LED), i.e., repeated cycles of 3 blinks and
a pause.
•S4 = 4 blinks at 1 Hz (50% duty cycle) followed by a pause
of 2 seconds (green LED) i.e., repeated cycles of 4 blinks and
a pause.
•S5 = LED is off.
If this feature is disabled, S4 and S5 both have the LED off. S1 (no
longer supported) and S3 use 1 blink per second.
Hardware Power
Management
SATA power management enables or disables SATA bus and/or
device power management.
Heading Option Description
✎ Support for specific Computer Setup options may vary depending on the hardware configuration.