Acer AT350 F1 Bedienungsanleitung PDF herunterladen (Seite 98)

4 System BIOS

86

DCA Prefetch

Delay

A DCA Prefetch is used with TOE

components to prefetch data in order to

shorten execution cycles and maximize

data processing effi ciency. A TOE device

is a specialized, dedicated processor that

is installed on an add-on card or a

network card to handle some or all

packet processing of this add-on card.

Prefetching too frequently can saturate

the cache directory and delay necessary

cache accesses. This feature reduces or

increases the frequency the system

prefetches data.

8, 6, 32,

40, 48, 56

64, 72, 80

88, 96,104

112, 120

Intel VT-d Select Enabled to enable Intel

Virtualization Technology support for

Direct I/O VT-d by reporting the I/O

device assignments to the VMM (Virtual

Working Memory) through the DMAR

ACPI Tables. This feature offers fully-

protected I/O resource sharing across

Intel platforms, providing greater

reliability, security and availability in

networking and data-sharing.

Enabled

Disabled

Active State

Power-

Management

Select Enabled to use the power

management for signal transactions

between the PCI Express L0 and L1 Links.

Select Enabled to configure PCI-Exp. L0

and L1 Link power states.

Enabled

Disabled

IOH PCI-E Max

Payload Size

Some add-on cards perform faster with

the coalesce feature, which limits the

payload size to 128B; while others, with

a payload size of 256B which inhibits the

coalesce feature. Please refer to your

add-on card user guide for the desired

setting.

256B

128B

Parameter Description Options

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