TITLE: HP Z6/Z8-G4 WKS System BIOS
VERSION: 02.95 REV: A PASS: 1
DESCRIPTION:
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: sp156535
SOFTPAQ FILE NAME: sp156535.exe
SOFTPAQ MD5: 7F8C23A4C6E8133AF2AF7488DACA96AB
SUPERSEDES: sp153243
EFFECTIVE DATE: January 03, 2025
CATEGORY: BIOS
SSM SUPPORTED: Yes

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

OPERATING SYSTEM(S):
Microsoft Windows 10 version 1507 (64-bit)
Microsoft Windows 10 version 1511 (64-bit)
Microsoft Windows 10 version 1607 (64-bit)
Microsoft Windows 10 version 1703 (64-bit)
Microsoft Windows 10 version 1709 (64-bit)
Microsoft Windows 10 version 1803 (64-bit)
Microsoft Windows 10 version 1809 (64-bit)
Microsoft Windows 10 version 1903 (64-bit)
Microsoft Windows 10 version 1909 (64-bit)
Microsoft Windows 10 version 2004 (64-bit)
Microsoft Windows 10 version 20H2 (64-bit)
Microsoft Windows 10 version 21H1 (64-bit)
Microsoft Windows 10 version 21H2 (64-bit)
Microsoft Windows 10 version 22H2 (64-bit)
Microsoft Windows 11 version 21H2 (64-bit)
Microsoft Windows 11 version 22H2 (64-bit)
Microsoft Windows 11 version 23H2 (64-bit)
Microsoft Windows 11 version 24H2 (64-bit)
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

LANGUAGE(S): Global

DEVICES SUPPORTED:


ENHANCEMENTS:
The following enhancements have been made in BIOS version 2.95:
-Upgraded in-ROM UEFI Diagnostics to version 2.3.8.0
-Updated to IPU 2024.3
-Includes enhancements to mitigate security vulnerabilities: CVE-2021-39301,
CVE-2024-24853, CVE-2024-21781, CVE-2024-21871
FIXES:
The following fixes have been made in BIOS version 2.95:
-Fixed issue where TPM was showing a status of a pending restart.

Trusted Execution Technology (TXT) Enabled:
TPM2.0 PCR0 = FB9AAD2E70B9D0118A87785BDB2EB9D9EBB077AD44085E23F382DDD866D18DE1
TPM1.2 PCR0 = 98493BFBCF64FF018955EE4E80B728C411DDE3A5

Trusted Execution Technology (TXT) Disabled:
TPM2.0 PCR0 = BA4DED24C4BB991FA1949C5C58C44AB43D460C7C4152AFED19606F242344DA7F
TPM1.2 PCR0 = 781A399B30E3CF09093E422FC1438512D7E6E527
PREREQUISITES: NONE
HOW TO USE:
1. Download the SoftPaq .EXE file to a directory on your hard drive.
2. Execute the downloaded file and follow the on-screen instructions.

Copyright (c) 2025 HP Development Company, L.P.