6-9
Chapter 6: BIOS
SouthBridge/MCP55 Configuration
The menu options in the SOUTHBRIDGE/MCP55 CONFIGURATION submenu and their
descriptions are shown in Table 6-8.
Table 6-8. SouthBridge/MCP55 Configuration Submenu
Menu Option Description
CPU/LDT Spread
Spectrum
Enables spread spectrum for the CPU/LDT. Options are Center Spread, DOWN
S
PREAD or DISABLED.
PCIE Spread
Spectrum
Allows you to Enable or DISABLE spread spectrum for PCI-Express.
SATA Spread
Spectrum
Enables spread spectrum for the SATA. Options are Enabled and D
ISABLED.
Primary Graphics
Adapter
Options are PCI Express J PCI and PCI * PCI EXPRESS.
USB 1.1 Controller Enable or D
ISABLE the USB 1.1 controller.
USB 2.0 Controller Enable or DISABLE the USB 2.0 controller.
USB Devices
Enabled
This menu option is greyed out and cannot be configured by the user.
Legacy USB Support
Select Enabled to enable the support for USB Legacy. Disable Legacy support if
there are no USB devices installed in the system. A
UTO disables Legacy support
if no USB devices are connected. The options are D
ISABLED, Enabled and AUTO.
USB 2.0 Controller
Mode
Select the controller mode for your USB ports. Options are HiSpeed and
F
ULLSPEED. (HiSpeed=480 Mbps, FullSpeed=12 Mbps).
BIOS EHCI Hand-Off Enable or DISABLE a workaround for OS's without EHCI hand-off support.
X USB Mass Storage Device Configuration
USB Mass
Storage Reset
Delay
This sets the number or seconds POST waits for the USB mass storage device
after the S
TART unit command. Options are 10 SEC, 20 sec, 30 SEC AND 40 SEC.
X Emulation Type
Device 1 Emulation
Type
Options for all include Auto, FLOPPY, FORCED FDD, HARD DISK and CDROM.
If Auto, then USB devices less than 530 MB will be emulated as floppy and
remaining as hard drive. Forced FDD option can be used to force HDD formatted
drive to boot as an FDD (example: ZIP Drive).
Device 2 Emulation
Type
Device 3 Emulation
Type
Device 4 Emulation
Type
To Next Page
Loading...
