ASUS M4A89GTD PRO/USB3 Motherboard Review

Overclocking Options

ASUS motherboards traditionally have lots of overclocking options, and with M4A89GTD PRO/USB3 it isn’t different. It features two switches near the memory sockets called “TURBO_KEY_II” and “CORE_UNLOCKER.” The first one enables some sort of automatic overclocking, but the product manual doesn’t tell much about it. The second one enables the ACC feature we commented on the introduction, allowing you to easily enable an extra CPU core if you have an “unlockable” CPU.

Figure 9: Switches.

Tons of overclocking features are provided on the motherboard setup and below we list only the main ones
available on BIOS 0207.

• DRAM Frequency: From 800 MHz to 1600 MHz in 267 MHz steps.
• CPU/NB Frequency: From 1400 MHz to 6000 MHz in 200 MHz steps.
• HT Link Speed: From 200 MHz to 2600 MHz in 200 MHz steps.
• CPU Offset Voltage: From 0.003125 V to 0.700000 V in 0.003125 V steps.
• CPU/NB Offset Voltage: From 0.003125 V to 0.700000 V in 0.003125 V steps.
• CPU VDDA Voltage: From 2.200 V to 2.900 V in 0.00625 V steps.
• DRAM Voltage: From 1.2000 V to 2.5000 V in 0.00625 V steps.
• HT Voltage: From 0.8000 V to 1.400 V in 0.00625 V steps.
• NB Voltage: From 0.8000 V to 2.600 V in 0.00625 V steps.
• NB 1.8 V Voltage: From 1.8 V to 2.1 V in 0.05 V steps.
• SB Voltage: From 1.10 V to 1.40 V in 0.05 V steps.
• Side Port Memory Voltage: From 1.50 V to 1.80 V in 0.10 V steps.
• Side Port Clock Speed: From 1333 MHz to 2000 MHz in 30 MHz steps.

Memory timings can also be tweaked.

Figure 10: Overclocking menu.

Figure 11: Overclocking menu (Cont’d).

Figure 12: Memory timing options.

Figure 13: Memory timings options.