Some websites will refer to their BIOS update offerings by mainboard model and BIOS version. In this case, the mainboard model correlates to the actual BIOS version, while the update version correlates to the BIOS version release. It's like this - if each different mobo uses a unique BIOS, it stands to reason that the mobo can then be identified simply by identifying the BIOS that it uses. Some manufacturers make this very easy for us by displaying the BIOS version and release on system startup. Others will display a BIOS identifier string on startup, while still others will offer no on-screen clues.
Lets consider an easy one first.
Figure 2 - Mainboard ID information displayed on startup Figure 2 shows the information displayed at the upper left corner of the monitor on system startup, during the RAM count. To keep this information displayed long enough to write it down, simply press the Pause key on your keyboard when the information appears. Write down the desired information, and then press any key to continue the boot cycle. The board ID string also tells us that the current BIOS release is v1.02. The answer to that depends upon the reason you are trying to ID the board in the first place.