TITLE: 786B BIOS Family Processor Microcode Update

VERSION: 1.09 Rev. A

DESCRIPTION:
This package contains a utility that can be used to install or upgrade the 
processor microcode on the listed HP Compaq Business Desktop models with a 786B 
family BIOS. 

This utility should generally be necessary only if the target machine is being 
serviced or upgraded with a different processor. If a microcode update needs to 
be installed, the BIOS displays a microcode error at startup. On rare 
occasions, supplemental microcode updates may be released, which may be newer 
than the microcode update that shipped from the factory. This utility may also 
be used in these cases for field upgrades of the microcode. This utility 
installs a microcode update only, and does not change the system BIOS image or 
version. This utility will not replace the installed microcode update with an 
older revision.

NOTE: To determine the BIOS family and processor stepping, press F10 on the 
target computer during system Power On to run the Setup Utility, and then 
select File/System Information. This information can be saved into a text file 
on a diskette or on a USB flash media device by selecting File/Save to 
Diskette. In order for a USB flash media device to be recognized by the system, 
the device must be attached before the computer is Powered On. 

PURPOSE: Routine
SOFTPAQ NUMBER: SP31629
SUPERSEDES: SP28991
EFFECTIVE DATE: November 11, 2005
CATEGORY: BIOS
SSM SUPPORTED: No

PRODUCT TYPE(S):
Desktops

HARDWARE PRODUCT MODEL(S):
HP Compaq d330 desktop: All Models
HP Compaq d330 microtower: All Models
HP Compaq d330 slim tower: All Models
HP Compaq d338 microtower: All Models
HP Compaq d530 convertible minitower: All Models
HP Compaq d530 small form factor: All Models
HP Compaq d530 ultra-slim desktop: All Models
HP Compaq d538 convertible minitower: All Models
HP Compaq d538 small form factor: All Models
HP Compaq dc5000 microtower: All Models
HP Compaq dc5000 small form factor: All Models
HP Compaq dx2000 slim tower: All Models

SOFTWARE PRODUCT(S):
None

OPERATING SYSTEM(S): 
Microsoft Windows 2000
Microsoft Windows NT 4.0
Microsoft Windows XP Home Edition
Microsoft Windows XP Professional

LANGUAGE(S): 
Global

ENHANCEMENTS: 
- Updates Intel Pentium 4 Processor microcode for F41, F34, F29 and F49 
steppings.

PREREQUISITES: 
N/A

HOW TO USE: 
1. Download the SoftPaq to a directory on your hard drive. 

2. Execute the downloaded file and follow the on-screen instructions.



Copyright (c) 2005 Hewlett-Packard Development Company, L.P.