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Q131425: Windows NT Recognizes Only One Processor On HP XU 5/90C

Article: Q131425
Product(s): Microsoft Windows NT
Version(s): 3.5,3.51
Operating System(s): 
Keyword(s): 
Last Modified: 13-FEB-2002

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The information in this article applies to:

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

When you install Windows NT on a Hewlett-Packard Vectra XU 5/90C that has two
processors, Windows NT Setup recognizes only one processor. Windows NT Setup
identifies the computer as a Standard PC.

CAUSE
=====

The HP XU 5/90C is using a BIOS version earlier than GO.05.08. Windows NT is
unable to detect multiple processors on this system with earlier BIOS versions.

RESOLUTION
==========

To correct this problem, upgrade the BIOS on the HP Vectra XU 5/90C to version
GO.05.08 or later. The GO.05.08 BIOS upgrade is available for download from the
HP bulletin board service (BBS) at (208) 344-1691, or from CompuServe in the
HPSYS forum. Download GO0508US.EXE.

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

The Hewlett-Packard XU 5/90C uses a motherboard that contains a socket for a
Pentium P54CM processor. When you add that chip, the system is upgraded to a
dual-Pentium configuration.

When the updated BIOS is installed, Windows NT Setup correctly selects MPS 1.1
Multiprocessor PC, not Standard PC.

The HP products discussed here are manufactured by Hewlett-Packard, a vendor
independent of Microsoft; we make no warranty, implied or otherwise, regarding
these products' performance or reliability.


Additional query words: prodnt mps smp multiprocessor single 503 504 505 508 GO.05.03 GO.05.04 GO.05.05

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Keywords          :  
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNT351search kbWinNT350search kbWinNTW350 kbWinNTW350search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS351 kbWinNTS350 kbWinNTS351search kbWinNTS350search
Version           : :3.5,3.51

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