Software • BIOS options
Chapter 4 Software
Power Panel 500 user's manual V1.40
201
1.7.2 Platform power management
InsydeH2O Setup Utility Rev. *
Power
If Enabled, the CLKRUN#
Logic will stop the PCI
Clocks
Platform Power Management
PCI Clock Run <Disabled>
_CST - C4 Latency Value <Disabled>
F1
F9
Esc
Enter
F10
Help Select Item
Change Values Setup Defaults
Exit Select Menu
Select SubMenu
Save and Exit
F5/F6
Figure 124: US15W Power - Platform Power Management
BIOS setting
Function
Configuration options
Effect
Enabled
Enables this function
PCI clock run
Option for enabling/disabling the PCI clocks to
save energy
Disabled
Disables this function
Enabled
Enables this function
_CST - C4 latency value
1)
Option for enabling/disabling the latency period
for C4 C-States in the ACPI _CST object
Information:
For more detailed information about
this setting, see the ACPI specification
Disabled
Disables this function
Enabled
Brings the processor to C4 if the operating sys-
tem is initiated in a C3 state
C4 on C3 - Deeper sleep
2)
Fine-tunes the power saving function on an ACPI
operating system
Disabled
Disables this function
Table 140: US15W Power - Platform power management - Configuration options
1)
These settings are only possible if
C-States
under the
Advanced CPU control
menu item is set to
Enabled
.
2)
These settings are only possible if
_CST - C4 Latency Value
is set to
Enabled
.
