ASUS Crosshair IV Formula Motherboard

Overclocking Options (Cont’d)

ASUS Crosshair IV Formula provides a myriad of overclocking options. Below we list only the main ones available on 0505 BIOS.

• CPU base clock: From 100 MHz to 600 Hz in 1 MHz steps.
• PCI Express clock: From 100 MHz to 150 MHz in 1 MHz steps.
• CPU voltage: From 0.625000 V to 2.025 V in 0.003125 V steps.
• CPU clock generator (VDDA) voltage: From
  2.2000 V to 3.1875 V in 0.01250 V steps.
• Memory voltage: From 1.200 V to 2.900 V in 0.01250 V steps.
• HyperTransport voltage: From 0.800 V to 2.000 V in 0.01250 V steps.
• Memory controller (NB) voltage: From 0.8000 V to 2.0000 V in 0.01250 V steps.
• North bridge voltage: From 0.8000 V to 2.0000 V in 0.01250 V steps.
• South bridge voltage: From 1.113 V to 1.802 V in 0.01325 V steps.
• PCI Express voltage: From 1.113 V to 2.000750 V in 0.013250 V steps.

Memory timings can also be tweaked.

Figure 12: Overclocking menu.

Figure 13: Overclocking menu (Cont’d).

Figure 14: Memory timing options.

Figure 15: More options.