Service Guide

BIOS Setup Utilities
Intel
®
Server System P4000IP and Intel
®
Workstation System P4000CR Service Guide 123
Option Values: Enabled
Disabled
Help Text:
Enable Enhanced Error Containment Mode (Data Poisoning) - Erroneous data
coming from memory will be poisoned. If disabled (default), will be in Legacy Mode -
No data poisoning support available.
Comments: Enhanced Error Containment (Data Poisoning) is not supported by all models of
processors, and this option will not appear unless all installed processors support Enhanced
Error Containment. This option globally enables or disables both Core and Uncore Data
Poisoning, for processors which support them.
27. MLC Streamer
Option Values:
Enabled
Disabled
Help Text:
MLC Streamer is a speculative prefetch unit within the processor(s).
Note
: Modifying this setting may affect performance.
Comments: MLC Streamer is normally
Enabled
, for best efficiency in L2 Cache and Memory
Channel use, but disabling it may improve performance for some processing loads and on
certain benchmarks.
28. MLC Spatial Prefetcher
Option Values:
Enabled
Disabled
Help Text:
[Enabled] – Fetches adjacent cache line (128 bytes) when required data is not
currently in cache.
[Disabled] – Only fetches cache line with data required by the processor (64 bytes).
Comments: MLC Spatial Prefetcher is normally
Enabled
, for best efficiency in L2
Cache and Memory Channel use, but disabling it may improve performance for some
processing loads and on certain benchmarks.
29. DCU Data Prefetcher