INTEL
®
CELERON® PROCESSOR SPECIFICATION UPDATE
19
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
(Uncacheable) May
Consolidate to UC
C93 X X X X X X X X X NoFix
Under Certain Conditions LTR
(Load Task Register)
Instruction May Result in
System Hang
C93 X X X X X X X X X NoFix
Under Certain Conditions LTR
(Load Task Register)
Instruction May Result in
System Hang
C94 X X X X X X X X X NoFix
Loading from Memory Type
USWC (Uncacheable
Speculative Write Combine)
May Get Its Data Internally
Forwarded from a Previous
Pending Store
C95 X X X X X X X X X NoFix
FXSAVE after FNINIT Without
an Intervening FP (Floating
Point) Instruction May Save
Uninitialized Values for FDP
(x87 FPU Instruction Operand
(Data) Pointer Offset) and
FDS (x87 FPU Instruction
Operand (Data) Pointer
Selector)
C96 X X X X X X X X X NoFix
FSTP (Floating Point
Store) Instruction Under
Certain Conditions May Result
In Erroneously Setting a Valid
Bit on an FP (Floating
Point) Stack Register
C97 X X X X X X X X X NoFix
Invalid Entries in Page-
Directory-Pointer-Table
Register (PDPTR) May Cause
General Protection (#GP)
Exception if the Reserved Bits
are Set to One
C98 X X X X X X
X
X
X
NoFix
Writing the Local Vector
Table (LVT)
when an Interrupt is Pending
May Cause an Unexpected
Interrupt
C99 X X X X X X
X
X
X
NoFix
The Processor May Report
an Invalid TSS Fault Instead
of a #GP Fault
C100 X X X X X X
X
X
X
NoFix
A Write to an APIC Register
Sometimes May Appear to