The ASUS AI Tweaker controls in the BIOS offer both voltage and clock speed adjustments for overclocking the ASUS M4A89GTD PRO/USB3's memory, CPU and IGP settings old school style.

The IGP can have both its access to the embedded 128 MB of DDR3 1333Mhz Sideport Memory and it allocation of system memory customized, depending on user need. It's also possible to overclock the IGP through this menu as well. Note that if 'GFX Engine Clock Override' is enabled for BIOS overclocking of the GPU, it disables the ASUS GPU software overclocking tool in Windows.

The Radeon HD 4290 IGP can be further configured on its own advanced page, along with the integrated HD audio codec.

ASUS' Core Unlocker can also be enabled through the M4A89GTD PRO/USB3's BIOS options menu, which will tell you the current state of the processor's cores and allow the user to set how many cores need to be unlocked.

Memory timings can all be set manually in the M4A89GTD PRO/USB3 motherboard's BIOS, which allows users to tune memory DIMMs down to the individual clock cycle.

Next up, power draw measurements and PCSTATS test system specs... then it's on to benchmarks!