B&R MAPPC800-ENG, Руководство пользователя

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Software • BIOS options
Section 4
Soft
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are
187 Panel PC 800 User's Manual V 1.00
BIOS setting Meaning Setting options Effect
DRAM Frequency Option for setting the RAM frequency. Auto Frequency set automatically by the BIOS.
400, 533, 667 MHz Desired clock frequency set manually.
Memory Hole Option for ISA cards with frame buffer. Not
relevant for an PPC800. Disabled Disables this function.
15MB-16MB This address area is reserved.
DIMM Thermal
Control Option for setting the maximum surface
temperature of the DIMM module. The
module is cooled by limiting the memory
bandwidth if the defined surface
temperature is reached. Disabled Surface temperature not limited.
40°C, 50°C, 60°C, 70°C,
80°C, 85°C, 90°C
Temperature limit value for the limitation.
DT in SPD Option to determine whether the GMCH
(Graphics and Memory Controller Hub)
supports DT (Delta Temperature) in the
SPD (Serial Presence Detect)
Management Algorithm of the DIMM
module. Disabled Disables this function.
Enabled Enables this function.
TS on DIMM Option to determine whether the GMCH
(Graphics and Memory Controller Hub)
supports TS (Thermal Sensor) in the
Thermal Management Algorithm of the
DIMM module. Disabled Disables this function.
Enabled Enables this function.
High Precision Event
Timer The HPET is a timer inside the PC. It is
able to trigger an interrupt with a high
degree of accuracy, which allows other
programs to better synchronize a variety
of applications. Disabled Disables this function.
Enabled Enables this function.
This function is recommended for multimedia
applications.
IOAPIC This option is used to activate or
deactivate the APIC (Advanced
Programmable Interrupt Controller).
Information:
The IRQ resources available to the
system are expanded when the APIC
mode is enabled.
Disabled Disables this function.
Enabled The IRQ resources available to the system are
expanded when the APIC mode is enabled.
APIC ACPI SCI IRQ This option is used to modify the SCI IRQ
when in APIC (Advanced Programmable
Interrupt Controller) mode. Disabled IRQ9 is used for SCI.
Enabled IRQ20 is used for SCI.
C4 On C3 Fine-tunes the power saving function on
an ACPI operating system. Disabled Disables this function.
Enabled Processor is needed in C4 if the operating system
is initiated in a C3 state.
Table 98: 945GME Advanced Chipset setting options