Acer AT350 F1 User Manual - Page 86

Processor Configuration, Cache L1, L2, L3 settings.

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74 4 System BIOS Processor Configuration This submenu displays the status of the processor as detected by the BIOS, including items such as the processor's type, frequency, and Cache L1, L2, L3 settings. Parameter Description Options Ratio CMOS Setting This option allows the user to set the ratio between the CPU Core Clock and the FSB Frequency. C1E Support Select Enabled to enable Enhanced Halt State support. C1E significantly reduces the CPU's power consumption by reducing the CPU's clock cycle and voltage during a Halt State. Enabled Disabled Hardware Prefetcher (Available when supported by the CPU) If set to Enabled, the hardware prefetcher will prefetch streams of data and instructions from the main memory to the L2 cache to improve CPU performance. Enabled Disabled Adjacent Cache Line Prefetch (Available when supported by the CPU) The CPU prefetches the cache line for 64 bytes if this feature is set to Disabled. The CPU will prefetch both cache lines for 128 bytes as comprised if this feature is set to Enabled. Enabled Disabled MPS and ACPI MADT Ordering This feature allows the user to configure the MPS (Multi-Processor Specifi cations) and ACPI settings for the main board. Select Modern Ordering if you are using XP or a newer version of the Windows OS. Select Legacy Ordering if you are using 2000 or an earlier version of the Windows OS. Modern Ordering Legacy Ordering

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4 System BIOS
74
Processor Configuration
This submenu displays the status of the processor as detected by the
BIOS, including items such as the processor's type, frequency, and
Cache L1, L2, L3 settings.
Parameter
Description
Options
Ratio CMOS Setting
This option allows the user to set
the ratio between the CPU Core
Clock and the FSB Frequency.
C1E Support
Select
Enabled
to enable Enhanced
Halt State support. C1E significantly
reduces the CPU's power
consumption by reducing the CPU's
clock cycle and voltage during a
Halt State.
Enabled
Disabled
Hardware
Prefetcher
(Available when
supported by the
CPU)
If set to E
nabled
, the hardware
prefetcher will prefetch streams of
data and instructions from the main
memory to the L2 cache to improve
CPU performance.
Enabled
Disabled
Adjacent Cache
Line Prefetch
(Available when
supported by the
CPU)
The CPU prefetches the cache line
for 64 bytes if this feature is set to
Disabled.
The CPU will prefetch both cache
lines for 128 bytes as comprised if
this feature is set to
Enabled
.
Enabled
Disabled
MPS and ACPI
MADT Ordering
This feature allows the user to
configure the MPS (Multi-Processor
Specifi cations) and ACPI settings
for the main board. Select Modern
Ordering if you are using XP or a
newer version of the Windows OS.
Select Legacy Ordering if you are
using 2000 or an earlier version of
the Windows OS.
Modern
Ordering
Legacy
Ordering