If you're piecing together a retro system or reviving an old HP:

Flashing (updating) the BIOS can add new features or fix bugs, but it is risky if not done correctly. Follow these steps if you have a verified update file (usually a .ROM file like Eto_610.ROM ) from a trusted source:

Do not attempt to use 8GB single sticks. Stick to 2GB or 4GB dual-sided modules. 2. CPU Support Limits

Officially, the board supports up to 4 GB (2 x 2GB sticks), though some community members have had success with up to 8GB depending on the chipset version.

This section is often missing in generic manuals. From the official H-IG41-UATX Rev 1.1 manual:

Located near the top-left of the CPU socket.

The H-IG41-uATX supports a wide range of Intel LGA 775 processors. According to the specification documentation, it is compatible with Core 2 Quad, Core 2 Duo, Pentium Dual Core, and Celeron processors.

H-IG41-uATX (Rev 1.1) , often known by its codename " ," is a classic Foxconn-manufactured motherboard used extensively in HP and Compaq desktop systems like the HP Compaq 500B Core Specifications Processor Support : Utilizes the