Bull Cedoc Novascale R422, Installation And User Manual

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7-10
NovaScale R422 Installation and User's Guide
SERR Signal Condition
This setting speci fi es the ECC Error conditions that an SERR# is to be asserted. The options
are None, Single Bit , Multiple Bit and Both.
4GB PCI Hole Granularity
This feature allows you to specify the size of PCI hole granularity for a PCI slot. 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 two memory branches operate. System address space can
either be interleaved between the two branches or Sequential from one branch to another.
Mirror mode allows data correction by maintaining two copies of data in two branches.
Single Channel 0 allows a single DIMM population during system manufacturing. The
options are Interleave , Sequential, Mirroring, and Single Channel 0.
Branch 0/1 Rank Interleaving
Select enable to enable the feature of memory Interleaving for Branch 0 Rank/Branch1
Rank. The options are 1:1, 1:2 and 1:4.
Branch 0/1 Rank Sparing
Select enable to enable the sparing feature for Branch 0 Rank/Branch 1 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
prede fi 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 a fully buffered
(FBD) memory module. In the closed-loop thermal environment, thermal throttling will be
activated when the temperature of the FBD DIMM device exceeds a prede fi ned threshold.
The options are Enabled and Disabled.
Global Activation Throttle
Select Enabled to enable open-loop global thermal throttling on a fully buffered (FBD)
memory module to make it active whenever the number of activate control exceeds a
prede fi ned number. The options are Enabled and Disabled.