Dell PowerEdge M915 Information Guide
AMD Opteron 4100, 4200, 4300, 6100,
6200, and 6300 Series Processors
Core Enumeration—Information
Update
The core enumeration order on AMD Opteron 4100, 4200, 4300, 6100, 6200, and
6300 series processors has changed from the following BIOS versions onwards.
With this latest BIOS update, the new core enumeration order follows a different
sequence. It enumerates all the cores on the first processor and then enumerates
all the cores on the next processor and so on.
For example, in a system installed with two 8-core 6200 series processors with all
cores enabled in the BIOS, the processor core enumeration order is as follows:
1 Processor 0: Cores 1, 2, 3, 4, 5, 6, 7, 8
2 Processor 1: Cores 9, 10, 11, 12, 13, 14, 15, 16
The new processor core enumeration order is designed to facilitate better power
management and can be enabled by upgrading to the latest BIOS version for your
system from
support.dell.com.
NOTE: Do not replace hardware. This is working as designed.
BIOS Version
Dell PowerEdge System
v1.9.3
R415, R515
v2.8.2
R815, R715
v2.10.2
M915
2012 - 12
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