TITLE: HP Z4-G4 Core-X WKS System BIOS
VERSION: 02.95 REV: A PASS: 1
DESCRIPTION:
This package contains the System BIOS image and flash utilities for the HP Z4G4
Core-X 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: sp156541
SOFTPAQ FILE NAME: sp156541.exe
SOFTPAQ MD5: 56C33BBA44484BBE3A028134312DB3B8
SUPERSEDES: sp153236
EFFECTIVE DATE: January 06, 2025
CATEGORY: BIOS
SSM SUPPORTED: Yes

PRODUCT TYPE(S):
Desktops
HARDWARE PRODUCT MODEL(S):
HP Z4 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.

TPM2.0 PCR0 = 1B9EE3E7335C0B9ACA70210C9C61CE2B58610083236B38B56E581879A963FE2F
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.