Supermicro AS-1040C-8 User Manual page 82

AS1040C-T/1040C-8 User's Manual
Data Cache BG Scrub
Allows L1 cache RAM to be corrected when idle. Options are Disabled and
various times in nanoseconds and microseconds.
IOMMU Option Menu
IOMMU Mode
IOMMU is supported on Linux-based systems to convert 32-bit I/O addresses
to 64-bit. Options are Disabled, Best Fit and Absolute. Selecting the Best
Fit or Absolute settings allows the user to select aperture size.
Power Down Control
Allows DIMMs to power down when not in use by deasserting the clock enable
signal. Options are Auto and Disabled.
Memory Ticking Parameters
Allows the user to select which CPU Node's timing parameters (memory clock,
etc.) to display. Options are CPU Node 0, CPU Node1, CPU Node 2 and CPU
Node 3.
South Bridge Confi guration
CPU Spread Spectrum
This setting is used to enable spread spectrum for the CPU. Options are Dis-
abled and Center Spread.
SATA Spread Spectrum
This setting is used to enable spread spectrum for the SATA. Options are Dis-
abled and Down Spread.
PCI Express Spread Spectrum
This setting is used to enable spread spectrum for the PCI Express. Options
are Disabled and Down Spread.
Primary Video
This setting is used to switch the PCI bus scanning order while searching for the
video card. It allows the user to select the type of primary VGA in case of multiple
video controllers. Options are Slave PCI-Express and Master PCI-Express.
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