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BIOS
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.
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"Advanced" options.
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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.
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Notable Available BIOS Adjustments
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Setting
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Options
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| 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.
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"PC Health Status."
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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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