20
Intel
®
Xeon
®
Processor Specification Update
Summary Table of Changes
Summary Table of Changes
The following table indicates the Specification Changes, Errata, Specification Clarifications or
Documentation Changes, which apply to the listed MCH steppings. Intel intends to fix some of the
errata in a future stepping of the component, and to account for the other outstanding issues
through documentation or Specification Changes as noted. This table uses the following notations:
Codes Used in Summary Table
X:
Erratum, Specification Change or Clarification that applies to the
given processor stepping.
(No mark) or (Blank Box): This erratum is fixed in listed stepping or specification change does
not apply to listed stepping.
Doc:
Document change or update that will be implemented.
Plan Fix:
This erratum may be fixed in a future of the product.
Fixed:
This erratum has been previously fixed.
No Fix:
There are no plans to fix this erratum.
PKG:
This column refers to errata on the Intel Xeon processor substrate.
AP
APIC-related erratum.
Change bar to left of table row indicates this item is either new or
modified from the previous version of this document.
Each Specification Update item is prefixed with a capital letter to distinguish the product. The key
below details the letters that are used in Intel’s microprocessor Specification Updates:
A = Intel
®
Pentium
®
II processor
B
= Mobile Intel
®
Pentium
®
II processor
C
= Intel
®
Celeron
®
processor
D = Dual-Core Intel
®
Xeon
®
Processor 2.8 GHz
E
= Intel
®
Pentium
®
III processor
F
= Intel
®
Pentium
®
processor Extreme Edition and Intel
®
Pentium
®
D processor
G = Intel
®
Pentium
®
III Xeon™ processor
H = Mobile Intel
®
Celeron
®
processor at 466/433/400/366/333/300 and 266 MHz
J
= 64-bit Intel
®
Xeon
®
processor MP with 1MB L2 cache
K = Mobile Intel
®
Pentium
®
III processor
L
= Intel
®
Celeron
®
D processor
M = Mobile Intel
®
Celeron
®
processor
N = Intel
®
Pentium
®
4 processor
O = Intel
®
Xeon
®
processor MP
P
= Intel
®
Xeon
®
processor
Q = Mobile Intel
®
Pentium
®
4 processor supporting Hyper-Threading Technology on 90-nm
process technology
R
= Intel
®
Pentium
®
4 processor on 90 nm process
S
= 64-bit Intel
®
Xeon
®
processor with 800 MHz system bus (1 MB and 2 MB L2 cache
versions)