Intel DX79SI Motherboard

Overclocking Options

The Intel DX79SI has a few overclocking options. Below, we list the most important ones (S1.0280B BIOS):

• CPU base clock: From 89.93 MHz to 146.98 MHz in 0.23 MHz increments
• CPU core voltage: From 1.000 V to 1.920 V in 0.005 V increments
• Memory controller (“System Agent”) voltage: From 0.8500 V to 1.8000 V in 0.0125 V increments
• CPU VTT (“I/O”) voltage: From 1.0500 V to 1.8000 V in 0.0125 V increments
• CPU PLL voltage: From 1.8000 V to 2.0000 V in 0.0125 V increments
• Chipset (PCH) voltage: From 1.1000 V to 1.5000 V in 0.0125 V increments
• Memory voltage: From 1.2000 V to 1.9250 V in 0.0125 V increments

Figure 9: Overclocking options

Figure 10: Overclocking options

Figure 11: Memory timing adjustments