Intel 925 - Pentium D 925 3.0GHz 800MHz 4MB-Cache Socket 775 CPU Specification

Errata
Specification Update 23
AA20. A VM Exit due to SMI or INIT in Parallel with a Pending FP Exception
May Not Correctly Clear the Interruptibility State Bits
Problem: When a pending FP exception is ready to be taken, a VM exit due to SMI or
INIT may not clear Blocking by STI and/or Blocking by MOV SS bits correctly
in Virtual-Machine Control Structure (VMCS) as expected..
Implication: A VM exit due to SMI or INIT may show incorrect STI and/or MOV SS blocking
state in VM-exit Interruptibility field.
Workaround: It is possible for the BIOS to contain a workaround for this erratum. .
Status: For the steppings affected, see the Summary Tables of Changes.
AA21. Processor May Hang with a 25% or Less STPCLK# Duty Cycle
Problem: If a system de-asserts STPCLK# at a 25% or less duty cycle and the
processor thermal control circuit (TCC) on-demand clock modulation is active,
the processor may hang. This erratum does not occur under the automatic
mode of the TCC.
Implication: When this erratum occurs, the processor may hang.
Workaround: If use of the on-demand mode of the processor's TCC is desired in
conjunction with STPCLK# modulation, then assure that STPCLK# is not
asserted at a 25% duty cycle.
Status: For the steppings affected, see the Summary Tables of Changes.
AA22. Attempting to Use an LDT Entry when the LDTR Has Been Loaded
with an Unusable Segment May Cause Unexpected Memory Accesses
Problem: In a system supporting Intel
®
Virtualization Technology, the processor
may incorrectly VM exit under the following conditions:
1. Interrupt-Window-Exiting VM-execution control is set
2. RFLAGS[IF]=1
3. Chipwide Powerdown transition requests occur when the processor is in
Wait-For-SIPI or Shutdown states
Implication: Due to this erratum, Interrupt-Window-Exiting VM exits may take the logical
processor out of Wait-For-SIPI and Shutdown states. Intel has not observed
this erratum with any commercially available software.
Workaround: It is possible for the BIOS to contain a workaround for this erratum
Status: For the steppings affected, see the Summary Tables of Changes.

Intel 925 - Pentium D 925 3.0GHz 800MHz 4MB-Cache Socket 775 CPU Specifications

General

Brand	Intel
Model	925 - Pentium D 925 3.0GHz 800MHz 4MB-Cache Socket 775 CPU
Category	Computer Hardware
Language	English