With the G43Twins-FullHD ASRock continues to use an American Megatrends Inc (AMI) BIOS, but with a few improvements since the last time we looked at an ASRock motherboard. From the smart settings page are options to load BIOS defaults, load performance setup default (IDE/SATA), load performance setup AHCI mode, and load power saving setup default. The advanced BIOS area allows tweaking the CPU and PCI Express frequency and the advanced chipset area allows tweaking the memory frequency and timings. On the hardware monitor page are the CPU and motherboard temperatures, CPU fan speed, chassis fan speed, Vcore, +3.30V, +5.00V, and +12.00V values. This AMI BIOS also allows saving settings to user defaults with up to three users.