INTEL
®
CELERON® PROCESSOR SPECIFICATION UPDATE
14
Summary of Errata
NO. CPUID/Stepping Plans
ERRATA
650h
A0
651h
A1
660h
A0
665h
B0
683h
B0
686h
C0
68Ah
D0
6B1h
A1
6B4h
B1
C26
X
X
X
X
Fixed
Test pin must be high during
power up
C27 X X X X X X X X Fixed
Intervening
writeback
may
occur during locked
transaction
C28 X X X X X X X X X NoFix
MC2_STATUS
MSR
has
model-specific error code
and machine check
architecture error code
reversed
C29 X X X X X X X X X NoFix
MOV
with
debug
register
causes debug exception
C30
X
X
X
X
X
X
X
X
X
NoFix
Upper four PAT entries not
usable with Mode B or Mode
C paging
C31
X
X
Fixed
Incorrect memory type may
be used when MTRRs are
disabled
C32 X X X Fixed
Misprediction
in
program
flow may cause unexpected
instruction execution
C33 X X X X X X X X X NoFix
Data Breakpoint Exception in
a displacement relative near
call may corrupt EIP
C34
X
X
X
X
X
X
X
X
X
NoFix
System bus ECC not
functional with 2:1 ratio
C35
X
X
X
X
X
X
X
Fixed
Fault on REP CMPS/SCAS
operation may cause
incorrect EIP
C36
X
X
X
X
X
X
X
NoFix
RDMSR and WRMSR to
invalid MSR address may not
cause GP fault
C37 X X X X X X X NoFix
SYSENTER/SYSEXIT
instructions can implicitly
load “null segment selector”
to SS and CS registers
C38 X X X X X X X NoFix
PRELOAD
followed
by
EXTEST does not load
boundary scan data
C39
X
X
X
X
X
X
Fixed
Far jump to new TSS with D-
bit cleared may cause
system hang