After the system reboots from a successful flash, you must confirm the new version is active.

Press F10 during boot to enter BIOS Setup. Note the "System BIOS" version (e.g., 1.54).

Navigate to the official HP Customer Support - Software and Driver Downloads page.

Plug the USB drive into a rear USB port on the target dc5800 SFF. Power on the PC and press to enter the BIOS Setup. Navigate to the File menu and select Flash System ROM .

If this is a desktop, ensure it is plugged into a UPS (Uninterruptible Power Supply) . If the power fails during the flash, the motherboard may be permanently damaged.

Run the .exe and look for the DOS Flash directory. Copy its contents (specifically the .bin file) to the root of your USB drive. Execute Flash: Restart and tap F10 repeatedly to enter Setup. Go to the File menu and select Flash System ROM .

A failed BIOS update can "brick" your motherboard, making it unusable. HP Support Communityhttps://h30434.www3.hp.com HP Compaq dc5800 Small Form Factor Restoration and Upgrade

Confirm that the BIOS Revision now displays or 7G1 v01.60 .

After the reboot, the DC5800 SFF will perform a memory count and may reset the CMOS checksum. You will see a prompt:

Navigate to the menu and select Apply Defaults and Exit . Resetting to factory defaults clears out stale NVRAM data from the previous version, preventing hardware conflicts.

Note: As of 2026, the dc5800 is a legacy device. Always ensure you are using the official, original BIOS files. 1. Verifying Your Current BIOS Version

Press immediately during the reboot to enter the BIOS Setup.

A BIOS update for the HP Compaq dc5800 Small Form Factor is a straightforward but critical procedure. By following a methodical approach—preparing your system, sourcing the file from the official HP support page, and thoroughly checking the results—you can successfully extend the life and stability of this dependable business computer. Always prioritize a stable power supply, use a bootable USB drive if possible, and verify the update twice to ensure a job well done.

Step-by-Step: Verified BIOS Update Procedure (DOS/USB Method)

What are you currently running on this dc5800?