Technical Product Specification

Intel® Server Boards S4600LH2/T2 TPS
Revision 2.0
142
When Rank Sparing RAS Mode is configured, “All” and “None” are not valid, so they will not be
presented as choices.
This threshold is applied on a per-rank basis. The Correctable Error occurrences are counted for each
memory rank. When any one rank accumulates a CE count equal to the CE Threshold, then a single
CE SEL Event is logged, and all further CE logging is suppressed.
Note that the CE counts are subject to a “leaky bucket” mechanism that reduces the count as a function
of time, to keep from accumulating counts unnecessarily over the term of a long operational run.
This is also the Correctable Error threshold used when Rank Sparing RAS Mode is configured. When a
CE threshold crossing occurs in Rank Sparing Mode on a channel which is in Redundant state, it
causes a Sparing Fail Over (SFO) event to occur. That threshold crossing will also be logged as a
Correctable Error event if it is the first to occur on the system.
An SFO event causes the rank with the error to be replaced by the spare rank for that channel, and the
channel goes to a non-redundant state (with a “Redundancy Degraded” SEL Event logged). There may
be an SFO for each channel in the system, although only the first one can be logged as a CE event.
Back to [Memory Configuration Screen] — [Advanced Screen
]
9. Memory Power Optimization
Option Values: Power Optimized
Performance Optimized
Help Text:
Power Optimized enables memory power limiting, Performance Optimized disables it for
maximum performance.
Comments: When enabled, the system is configured to allow memory power management by
the Node Manager (NM) and Management Engine (ME).
Back to [Memory Configuration Screen] — [Advanced Screen
]
10. Memory RAS and Performance Configuration
Option Values: <None>
Help Text:
Configure memory RAS (Reliability, Availability, and Serviceability) and view current memory
performance information and settings.
Comments: Selection only. Position to this line and press the <Enter> key to go to the
Memory RAS and Performance Configuration group of configuration settings.
Back to [Memory Configuration Screen] — [Advanced Screen
]