Supermicro X8DTN+ Manuel d'utilisateur télécharger pdf (Page 69)

Chapter 4: AMI BIOS

4-9

will enhance overall system performance by providing direct cache access for data

transferring. The options are Enabled and Disabled.

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. Prefetching too fre-

quently can saturate the cache directory and delay necessary cache accesses. This

feature reduces or increases the frequency the system prefetches data. The options

are [8], [16], [32], [40], [48], [56], [64], [72], [80], [88], [96], [104], [112], [120]

Intel VT-d

Select Enabled to enable Intel's Virtualization Technology support for Direct I/O VT-d

by reporting the I/O device assignments to VMM through the DMAR ACPI Tables.

This feature offers fully-protected I/O resource-sharing across the Intel platforms,

providing the user with greater reliability, security and availability in networking and

data-sharing. The settings are Enabled and Disabled.

Active State Power Management

Select Enabled to start Active-State Power Management for signal transactions

between L0 and L1 Links on the PCI Express Bus. This maximizes power-saving

and transaction speed. The options are Enabled and Disabled.

IOH PCIE 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 set-

ting. The options are 256B and 128MB.

South Bridge Conﬁ guration

This feature allows the user to conﬁ gure the settings for the Intel South Bridge.

USB Functions

This feature allows the user to decide the number of onboard USB ports to be

enabled. The Options are: Disabled, and Enabled. (If this item is set to Enabled,

USB 2.0 Controller will be enabled.)

Legacy USB Support

Select Enabled to use Legacy USB devices. If this item is set to Auto, Legacy USB

support will be automatically enabled if a legacy USB device is installed on the

motherboard, and vise versa. The settings are Disabled, Enabled and Auto.

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 92 93

Pas de commentaire

Supermicro X8DTN+ Manuel d'utilisateur Page 69