Look near the Southbridge/Chipset or the Super I/O controller (usually an SMSC or Nuvoton chip).
To fix this, you must merge your original DMI data into the new exclusive file:
If you own an HP ProBook 640 G2, you’ve likely hit a brick wall at some point. The laptop powers on, the fan spins, but the screen remains black. No POST. No HP logo. Just a dead machine. hp probook 640 g2 bios bin file exclusive
Search for: "ProBook 640 G2" "16MB" "Cleaned ME" site:badcaps.net
What makes a BIOS file "exclusive"? An is the one you can directly download from HP's support website. It's a generic image meant to be installed via their provided executable (SoftPaq) on a functioning Windows system. Look near the Southbridge/Chipset or the Super I/O
A full 16MB BIOS dump for the 640 G2 contains several distinct regions:
The BIOS BIN file exclusive to the HP ProBook 640 G2 offers several unique features that enhance the device's performance, security, and functionality. Some of these features include: No POST
Identify an 8-pin SOIC chip (two rows of four pins). Common manufacturers include Winbond, Macronix, or Gigadevice.
Use tools like UEFITool or PhoenixTool to extract the raw .bin from HP’s own sp123456.exe file. The official ROM is always safer than a dump from another person’s laptop (which contains their Serial Number and MAC address).
Note: Always verify the exact markings on your chip using a magnifying glass, as HP utilized different component vendors during production runs. Step-by-Step Guide to Flashing the BIOS BIN File