Chapter 4: BIOS
4-11
4GB PCI Hole Granularity
This feature allows you to select the granularity of PCI hole for PCI slots. If MTRRs
are not enough, this option may be used to reduce MTRR occupation. The options
are:
256 MB
, 512 MB, 1GB and 2GB.
Memory Branch Mode
This option determines how the memory branch operates. System address space
can either be interleaved between two channels or Sequential from one channel
to another. Single Channel 0 allows a single DIMM population during system
manufacturing. The options are
Sequential
and Single Channel 0.
Branch 0 Rank Interleaving
Select enable to enable Memory Interleaving support for Branch 0 Rank. The
options are 1:1, 2:1 and
4:1
.
Branch 0 Rank Sparing
Select enable to enable sparing support for Branch 0 Rank. The options are
Enabled and
Disabled
.
Enhanced x8 Detection
Select
Enabled
to enable Enhanced x8 DRAM UC Error Detection. The options
are Disabled and
Enabled
.
High Temperature DRAM Operation
When set to
Enabled, the BIOS will refer to the SPD table to set the maximum
DRAM temperature. If disabled, the BIOS will set the maximum DRAM temperature
based on a predefi ned value. The options are Enabled and
Disabled
.
AMB Thermal Sensor
Select
Enabled to enable the thermal sensor embedded in the Advanced Memory
Buffer on a fully buffered memory module for thermal monitoring. The options are
Disabled
and Enabled.
Thermal Throttle
Select Enabled to enable the function of closed-loop thermal throttling on the fully
buffered (FBD) memory modules. In the closed-loop thermal environment, thermal
throttling will be activated when the temperature of the FBD DIMM device exceeds
a predefi ned threshold. The options are Enabled and
Disabled
.
Global Activation Throttle
Select Enabled to enable the function of open-loop global thermal throttling on the
fully buffered (FBD) memory modules and allow global thermal throttling to become
active when the number of activate control exceeds a predefi ned number. The
options are Enabled and
Disabled
.
