HP 285 Maintenance and Service Guide - Page 65

Computer Setup—Power, Computer Setup-Security continued, Computer Setup-Advanced for advanced users

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Table 5-3 Computer Setup-Security (continued) Option Description during system start up, allowing you to use alternative operating systems. Selecting HP Keys causes the computer boot using the preloaded HP-specific boot keys. Default is HP Keys. ● Fast Boot-Enable/Disable. Fast boot disables the ability to interrupt boot, such as pressing f keys to access items before the operating system loads. Default is disabled. NOTE: If Windows detects a serious error, it will interrupt the boot process automatically and display advanced boot options. From Windows, you can press Shift and select Restart to access the screen that lets you boot to a device or troubleshoot your computer. Computer Setup-Power NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 5-4 Computer Setup-Power Option Description OS Power Management Hardware Power Management Thermal ● 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. Default is enabled. ● Idle Power Savings-Extended/Normal. Allows certain operating systems to decrease the processors power consumption when the processor is idle. Default is extended. SATA Power Management - Enables or disables SATA bus and/or device power management. Default is enabled. S4/S5 Wake On LAN - Lets you set the computer to power on at the specified days/times set in the BIOS power-on. Default is disabled. Fan idle mode-This bar graph controls the minimum permitted fan speed. NOTE: This setting only changes the minimum fan speed. The fans are still automatically controlled. CPU Fan Speed-Shows the fan speed. Computer Setup-Advanced NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 5-5 Computer Setup-Advanced (for advanced users) Option Heading Power-On Options Allows you to set: ● POST messages (enable/disable). Enabling this feature will cause the system to display POST error messages, which are error messages displayed on the monitor during the Power On Self Test if the BIOS encounters some kind of problem while starting the PC. A POST error message will only display on screen if the computer is capable of booting this far. If the POST detects an error before this point, a beep code is generated instead. Default is disabled. ● After Power Loss (off/on/previous state). Default is Power off. Setting this option to: - Power off-causes the computer to remain powered off when power is restored. - Power on-causes the computer to power on automatically as soon as power is restored. Computer Setup (F10) Utilities 57

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Table 5-3
Computer Setup—Security (continued)
Option
Description
during system start up, allowing you to use alternative operating systems. Selecting HP Keys
causes the computer boot using the preloaded
HP-specific
boot keys. Default is HP Keys.
●
Fast Boot—Enable/Disable. Fast boot disables the ability to interrupt boot, such as pressing f keys
to access items before the operating system loads. Default is disabled.
NOTE:
If Windows detects a serious error, it will interrupt the boot process automatically and
display advanced boot options.
From Windows, you can press
Shift
and select
Restart
to access the screen that lets you boot to a
device or troubleshoot your computer.
Computer Setup—Power
NOTE:
Support for
specific
Computer Setup options may vary depending on the hardware
configuration.
Table 5-4
Computer Setup—Power
Option
Description
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. Default is enabled.
●
Idle Power Savings—Extended/Normal. Allows certain operating systems to decrease the
processors power consumption when the processor is idle. Default is extended.
Hardware Power
Management
SATA Power Management – Enables or disables SATA bus and/or device power management. Default is
enabled.
S4/S5 Wake On LAN - Lets you set the computer to power on at the
specified
days/times set in the BIOS
power-on. Default is disabled.
Thermal
Fan idle mode—This bar graph controls the minimum permitted fan speed.
NOTE:
This setting only changes the minimum fan speed. The fans are still automatically controlled.
CPU Fan Speed—Shows the fan speed.
Computer Setup—Advanced
NOTE:
Support for
specific
Computer Setup options may vary depending on the hardware
configuration.
Table 5-5
Computer Setup—Advanced (for advanced users)
Option
Heading
Power-On Options
Allows you to set:
●
POST messages (enable/disable). Enabling this feature will cause the system to display POST error
messages, which are error messages displayed on the monitor during the Power On Self Test if the
BIOS encounters some kind of problem while starting the PC. A POST error message will only display
on screen if the computer is capable of booting this far. If the POST detects an error before this
point, a beep code is generated instead. Default is disabled.
●
After Power Loss
(off/on/previous
state). Default is Power
off.
Setting this option to:
—
Power
off—causes
the computer to remain powered
off
when power is restored.
—
Power on—causes the computer to power on automatically as soon as power is restored.
Computer Setup (F10) Utilities
57