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Q160014: Stop 7F - F Fault on the Intel P6 Processor

Article: Q160014
Product(s): Microsoft Windows NT
Version(s): 3.5,3.51,4.0
Operating System(s): 
Keyword(s): kbhw kbHardware
Last Modified: 21-FEB-2002

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The information in this article applies to:

- Microsoft Windows NT Workstation versions 3.5, 3.51, 4.0 
- Microsoft Windows NT Server versions 3.5, 3.51, 4.0 
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SYMPTOMS
========

The following STOP error message appears on your Windows NT Server:

  STOP: 0x0000007F (0x0000000F, 0x00000000, 0x00000000, 0x00000000)

This problem only occurs on single-processor systems with the Intel Pentium Pro
processor.

RESOLUTION
==========

Disable the local Advanced Program Interrupt Controller (APIC) in the BIOS. Not
all vendors have implemented enabling and disabling of the local APIC as a BIOS
option. If this is the case, contact the system vendor and request an updated
BIOS that corrects Pentium Pro erratum 5AP and 6AP.

NOTE: Not every 7F - F fault in a Pentium Pro single processor system is
necessarily traceable to the APIC.

MORE INFORMATION
================

Faulty hardware was determined to be the cause of this error. The problem was
reported to Intel.


Additional query words: prodnt trap 0x7F blue screen

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Keywords          : kbhw kbHardware 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT351search kbWinNT350search kbWinNT400search kbWinNTW350 kbWinNTW350search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbWinNTS351 kbWinNTS350 kbWinNTS351search kbWinNTS350search
Version           : :3.5,3.51,4.0

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