TITLE: HP Z6/Z8-G4 Workstation System BIOS
VERSION: 02.78 REV: A PASS: 1DESCRIPTION:
This package contains the System BIOS image and flash utilities for the HP
Z6G4/Z8G4 Workstations. These utilities can be used to restore or update the
System BIOS. System BIOS is independent of the Operating System.
PURPOSE: Critical
SOFTPAQ NUMBER: SP138271
SOFTPAQ FILE NAME: sp138271.exe
SOFTPAQ MD5: 1dbeb6cb72a26e1a332d56da37ea3b84
SUPERSEDES: SP136033EFFECTIVE DATE: February 02, 2022
CATEGORY: BIOS
SSM SUPPORTED: Yes

PRODUCT TYPE(S):
Workstations
HARDWARE PRODUCT MODEL(S):
HP Z8 G4 Workstation
HP Z6 G4 Workstation

OPERATING SYSTEM(S):
Microsoft Windows 7 Enterprise 64 Edition
Microsoft Windows 7 Home Basic 64 Edition
Microsoft Windows 7 Home Premium 64 Edition
Microsoft Windows 7 Professional 64 Edition
Microsoft Windows 7 Ultimate 64 Edition
Microsoft Windows 10 All Editions (64-bit)
Microsoft Windows 11 version 21H2 (64-bit)

LANGUAGE(S): Global

DEVICES SUPPORTED:
--
"Z6G4,Z8G4"

ENHANCEMENTS:
- The following enhancements have been made in BIOS version 2.78:
Includes enhancements to mitigate security vulnerabilities CVE-2021-0092,
CVE-2021-0093, CVE-2021-0099, CVE-2021-0103, CVE-2021-0107, CVE-2021-0111,
CVE-2021-0114, CVE-2021-0115, CVE-2021-0116, CVE-2021-0117, CVE-2021-0118,
CVE-2021-0124, CVE-2021-0125, CVE-2021-0127, and CVE-2021-33107.
- HP strongly recommends promptly transitioning to this updated BIOS version.
- Updates Intel Xeon SP Second Generation CPU Microcode to 0x0500320a.
- Updates Intel Reference Code to v116D08.
- Updates Intel TXT BIOS ACM to v1.7.51.
- Updates Intel TXT SINIT ACM to v1.7.51.
- Updates Intel MEBx to 11.0.0.0012.
- Updates Intel NVDIMM driver to v3531.

Trusted Execution Technology (TXT) Enabled:
TPM2.0 PCR0 = B98DEC1177588F8CC97A30BAD9E8B937378AD171AFA2B9F1A5F463618C1E5D87
(SHA256)
TPM1.2 PCR0 = AD8D922CE8A232D8BCCA8015A40E6DF834EF22D6 (SHA1)

Trusted Execution Technology (TXT) Disabled:
TPM2.0 PCR0 = 24B2C1BEFA85AC2ABC075DB56ED5D7001692126160EBDFEF2F11BF5D6C4EDB40
(SHA256)
TPM1.2 PCR0 = A8FBD6DEEA397727EB3CFD36961D5AA284A39FC9 (SHA1)
FIXES:
- Fixes an issue where certain LOM devices could enumerate incorrectly when
using BIOS 2.71 or greater.
PREREQUISITES: NONE
HOW TO USE:
1. Download the file by clicking the "Download" or "Obtain Software" button and
saving the file to a folder on your hard drive (make a note of the folder where
the downloaded file is saved).
2. Double-click the downloaded file and follow the on-screen instructions to
unpack the files to C:\SWSETUP\SP138271
3. Alternatively, select the Copy option from the GUI, the BIOS binary file is
located in the following directory: C:\SWSETUP\SP138271\HPBIOSUPDREC
4. Copy the binary to the following directory on the USB key: drive
letter\Hewlett-Packard\BIOS\New
5. Insert the USB key into the workstation that is to be updated and reboot or
boot the unit to the Startup menu by pressing Esc during POST (before the OS
loads).
6. Use the arrow keys to select the "Flash System Bios" option. Follow the
prompts to update the BIOS. Alternatively, the "Flash System Bios" feature is
available in BIOS Setup from the Main menu.

Copyright (c) 2022 HP Development Company, L.P.