Gigabyte GA-MA74GM-S2: AMD 690G, Take 2

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BIOS options on mATX boards are typically very spartan. The presence of an IGP and the more limited cooling associated with an mATX platform makes manufacturers nervous about allowing users the ability to customize their clock/voltage settings.

"Advanced" options.

The "MB Intelligent Tweaker" menu provides most access to most of the settings the majority of enthusiasts are after. CPU and memory clocks and voltages can be adjusted to varying degrees. The onboard graphics processor's core speed can be altered if desired.

Notable Available BIOS Adjustments
CPU Frequency 200Mhz to 500Mhz in 1Mhz increments
PCI-E Frequency 100Mhz to 200Mhz in 1Mhz increments
VGA Core Clock 200Mhz to 600Mhz in 1Mhz increments
Memory Frequency 400/533/667/800Mhz (may depend on CPU)
Memory Timings Various
CPU Voltage 0.800V to 1.550V in 0.025V increments, 1.550V to 1.900V in 0.050V increments
Memory Voltage +0.1, +0.2V, +0.3V
Northbridge Voltage N/A
Video Memory Size 64MB, 128MB, 256MB, 512MB

A wide range CPU voltages can be selected, but memory voltage is very limited with the maximum being +0.3V (or 2.1V total). Chipset voltage is absent.

"PC Health Status."

The PC Health menu provides a quick overview of voltages, temperatures and fan speeds. Built-in fan control is available for both fan headers. The CPU Smart Fan control supports both DC and PWM fans, though setting the mode to "Auto" is probably best.

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