ASUS Crosshair IV Formula Bios 0505 Publisher's description
ASUS Crosshair IV Formula Bios 0505
This package provides the installation files for the first release version of the ASUS Crosshair IV Formula Bios.
It is highly recommended to always use the most recent driver version available.
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Try to set a system restore point before installing a device driver. This will help if you installed a wrong driver. Problems can arise when your hardware device is too old or not supported any longer.