ASRock 890GX Extreme4 Motherboard

Overclocking Options

The new ASRock 890GX Extreme4 provides several overclocking options. It has a dynamic overclocking function, where you can easily overclock your CPU from 0% to 20% in 4% increments, and also an automatic overclocking function called “Turbo UCC.” Below we list only the main ones available on the 1.00 BIOS.

• CPU reference clock: From 150 MHz to 500 Hz in 1 MHz steps
• PCI Express clock: From 75 MHz to 250 MHz in 1 MHz steps
• SidePort clock: From 533 MHz to 1460 MHz in 133 MHz steps
• GPU clock: From 350 MHz to 2000 MHz in 1 MHz steps
• CPU voltage: From 0.6000 V to 2.000 V in 0.0125 V steps
• CPU PLL voltage (VDDA): From 2.56 V to 2.70 V in 0.10 V steps
• Memory controller voltage (VDDNB): From 0.6000 V to 1.5500 V in 0.0225 V steps
• Memory voltage: From 1.250 V to 2.065 V in 0.010 V steps
• HyperTransport voltage: From 1.200 V to 1.820 V in 0.01 V steps
• GPU voltage: From 1.108 V to 1.794 V in 0.013 V steps
• North bridge (chipset) voltage: From 1.110 V to 1.795 V in 0.010 V steps
• South bridge voltage: From 1.10 V to 1.40 V in 0.1 V steps
• SidePort voltage: From 1.50 V to 1.80 V in 0.1 V steps.
• PCI Express PLL (VDDA) voltage: From 1.81 V to 1.92 V in 0.11 V steps.

Plus memory timings, which can be also tweaked.

Figure 11: Overclocking menu

Figure 12: Overclocking menu (Cont’d)

Figure 13: Memory timings options

Figure 14: Memory timings options (Cont’d)

Figure 15: Memory timings options (Cont’d)