Report ID: HR-500B-2024-01 Subject: BIOS (Basic Input/Output System) of the HP 500B Microtower (MT) Date: October 26, 2023 Author: Hardware Analysis Division
The HP 500B MT originally shipped with an American Megatrends Inc. (AMI) BIOS, versioned by HP. Unlike modern UEFI firmware, the 500B MT uses a traditional Legacy BIOS with a text-based setup utility accessed via a function key during boot.
Key Features of the 500B MT BIOS:
Why does the BIOS matter? It initializes the CPU, RAM, storage drives, and integrated peripherals (like the VGA output on the Intel GMA X4500). An outdated or corrupted BIOS can cause random shutdowns, failure to recognize new hard drives, or incompatibility with newer Linux distributions.
The HP 500B MT BIOS is a stable, legacy AMI implementation suitable for its era but severely outdated by modern standards. Technicians managing these systems should:
For continued use with Windows 10 or Linux, the BIOS performs adequately, but the platform is recommended for retirement due to security and performance limitations. hp 500b mt bios
Appendices:
HP 500B Microtower (MT) uses a legacy BIOS setup that controls essential hardware configurations like boot order, security, and system info. Accessing the BIOS To enter the BIOS Setup Utility on an HP 500B MT: the computer. Immediately press the key repeatedly until the Startup Menu appears. to enter the BIOS Setup Utility You can also use
to go directly to the Boot Device Menu if you just need to change the boot drive temporarily. BIOS Menu Overview Once inside, you can navigate using the arrow keys and to select options: Main/File Menu:
Displays system information, including the processor type, BIOS version, and serial number. Security Menu:
Allows you to set a Power-On Password or a Setup Password to prevent unauthorized access. Storage/System Configuration: Technical Report: HP 500B Microtower BIOS Analysis and
Where you manage SATA modes and the boot order (e.g., setting the PC to boot from a USB drive or CD-ROM). Exit Menu: Use this to Save Changes and Exit Ignore Changes and Exit . To reset the BIOS to original settings, select Load Setup Defaults Troubleshooting & Updates If you encounter a BIOS Recovery Error (500)
on a black screen, HP recommends updating the BIOS to the latest version. Manual Update: HP Support Website
and enter "HP 500B Microtower" to find available firmware updates. Automatic Update: HP Support Assistant
tool to automatically scan for and install the latest BIOS revision. for your processor or a walkthrough on flashing the firmware
HP Desktop PCs - BIOS Setup Utility information and menu options Why does the BIOS matter
Score: 7/10
Updating the BIOS on the HP 500B MT is refreshingly simple compared to many consumer boards.
Q: Does the HP 500B MT support UEFI boot?
A: No. It is a legacy BIOS system. You must install 64-bit operating systems using MBR partitioning, not GPT.
Q: Can I boot from a USB drive?
A: Yes. Insert the USB, press F9 at boot for Boot Menu, or change Boot Order in BIOS under the Boot tab.
Q: My HP 500B MT says “BIOS Update Failure – System Halted.” How to recover?
A: Most HP boards use a Boot Block recovery. Create a USB with the BIOS file named AMIBOOT.ROM. Connect it, restart, and press Ctrl+Home. The system will force-flash.
Q: Does updating the BIOS remove Windows activation?
A: No. BIOS updates do not affect Windows product keys or activation status.
Q: What is the maximum CPU supported after a BIOS update?
A: Even with v01.13, the 500B MT’s VRM (voltage regulator) limits it to 95W TDP CPUs. The best drop-in upgrades are: Intel Core 2 Quad Q9650 (3.0GHz) or Core 2 Duo E8600. A BIOS update does not add support for Xeon or newer socket CPUs.