5-9
Chapter 5: BIOS
Memory Mode
This option sets the system memory mode. Options are the following:
•
Independent
(default) – All DIMMs are available to the operating system.
• C
HANNEL
M
IRROR
– The mainboard maintains two identical copies of all data
in memory for redundancy.
• L
OCKSTEP
– The mainboard uses two areas of memory to run the same set
of operations in parallel.
• S
PARING
– A preset threshold of correctable errors is used to trigger
fail-over. The spare memory is put online and used as active memory in
place of the failed memory.
Demand
Scrubbing
This feature is a memory error-correction scheme whereby the processor writes
corrected data back into the memory block from where it was read by the
processor. The options are
Enabled
or D
ISABLED
.
Patrol Scrubbing
This feature is a memory error-correction scheme that works in the background
looking for and correcting resident errors. The options are
Enabled
or D
ISABLED
.
Throttling –
Closed Loop
This setting allows BIOS to program Closed Loop Throttling for memory
components. Options are
Enabled
or D
ISABLED
.
North Bridge
Configuration
This sub-menu configures North Bridge features and shows configuration
information.
IOFT Max
Payload Size
This setting allows you to specify IOFT Max Payload size as either 128B or
256B
.
Active State
Power
Management
This setting allows you to E
NABLE
or
Disable
PCI Express L0s and L1 link power
states.
Intel VT-d
This setting allows you to E
NABLE
or
Disable
Intel VT-d in your system.
South Bridge
Configuration
This sub-menu configures South Bridge features.
USB Functions
This feature allows you to enable USB functions in your system. Options are
Enabled
or D
ISABLED
.
USB Port
Configure
This feature allows you to configure USB ports in your system. Options include
6x6 USB Ports
and 8
X
4 USB P
ORTS
.
USB
Configuration
This submenu contains further USB configuration options and USB
Configuration information including the USB devices that are enabled on the
system.
Legacy USB
Support
This option allows you to enable the use of Legacy USB devices. If this option is
set to A
UTO
, legacy USB support will be automatically enabled if a legacy USB
device is installed on the mainboard, and vice versa. The options include
D
ISABLED
,
Enabled
and A
UTO
.
Port 6x/60
Emulation
This setting enables I/O port 60h/64h emulation support. This should be enabled
for the complete USB keyboard legacy support for non-USB aware Oses.
Options are either E
NABLED
or
Disabled
.
USB 2.0
Controller Mode
This setting allows you to select the USB 2.0 Controller mode. Options include
Hi-Speed (480 Mbps)
and F
ULL
S
PEED
(12 M
BPS
).
Table 5-7. Chipset Configuration Sub-menu (Continued)
Menu Option
Description
Summary of Contents for SBI-7426T-SH
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