Supermicro H8DMT, User Manual

Page: 48 / 62

H8DMT/H8DMT-IBX/H8DMT-F/H8DMT-IBXF User’s Manual
4-6
L2 Cache BG
Scrub Allows L2 cache RAM to be corrected when idle. Options are Disabled and
various times in nanoseconds and microseconds.
L3 Cache BG
Scrub Allows L3 cache RAM to be corrected when idle. Options are Disabled and
various times in nanoseconds and microseconds.
DRAM Timing Configuration
Memory Clock
Mode This setting specifies the memory clock mode. Options are Auto , L
IMIT
and
M
ANUAL
.
DRAM Timing
Mode
This setting specifies the DRAM timing mode. Options are Auto and DCT.
IOMMU Option Menu
IOMMU Mode
Used to disable or set the GART size in systems without AGP. Options are AGP
Present , D
ISABLED
, 32 MB, 64 MB, 128 MB, 256 MB, 512 MB and 1 GB.
Table 4-6. SouthBridge/MCP55 Configuration Submenu
Menu Item Description
CPU/LDT Spread
Spectrum Enables spread spectrum for the CPU/LDT. Options are Center Spread , D
OWN
S
PREAD
or D
ISABLED
.
PCIE Spread
Spectrum
Allows you to Enable or D
ISABLE
spread spectrum for PCI-Express.
SATA Spread
Spectrum
Enables spread spectrum for the SATA. Options are Enabled and D
ISABLED
.
USB 1.1 Controller Allows you to Enable or D
ISABLE
the USB 1.1 controller.
USB 2.0 Controller Setting to either Enable or D
ISABLE
the USB 2.0 controller.
Legacy USB Support
Select Enabled to enable support for USB Legacy devices.Use D
ISABLE
to
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 A
UTO
.
Table 4-7. Processor & Clock Options Submenu
Menu Item Description
MTRR Mapping
This determines the method used for programming CPU MTRRs when 4 GB or
more memory is present. The options are
Continuous , which makes the PCI
hole non-cacheable, and D
ISCRETE
, which places the PCI hole below the 4 GB
boundary.
Thermal Throttling Used to E
NABLE
or Disable thermal to generate a power management event.
Power Now This setting is used to E
NABLE
or Disable the AMD Power Now feature.
Secure Virtual
Machine Mode
This setting is used to Enable or D
ISABLE
SVM (Secure Virtual Machine).
CPU Page
Translation Table
This setting is used to Enable or D
ISABLE
the CPU Page Translation Table.
Table 4-5. NorthBridge Configuration Submenu (Continued)
Menu Item Description