CPU Intel Atom 230 (Diamondville)
BIOS
Gigabyte GC230D is equipped with the Award BIOS Phoenix system.
The memory settings (standard kit) are gathered in the "Advanced Chipset Features" section:
There is also the parameter that detects the capacity of memory reserved for the needs of the integrated graphic core GMA950. The parameter in charge of selecting the memory operating frequency is in the overclocking section:
Now move on to the section to do with the system monitoring.
The board keeps track of the CPU's current temperature, voltage, and rotational speeds of the two fans. Besides, the user can control the rotational speed of the CPU cooler with the Smart Fan feature.
Overclocking and stability
Now let's look at the power converter. It uses a 1-phase power scheme in which there are two 820 mkF and one 470 mkF capacitors.
The settings required for overclocking are gathered in the "Frequency/Voltage Control" section:
Therefore, Gigabyte GC230D allows adjusting the system bus speed within 100 to 700 MHz in 1 MHz increments.
Here are the remaining overclocking tools:
| Motherboard | Gigabyte GC230D |
| CPU multiplier adjustable | - |
| FSB adjustment | within 100 to 700 MHz (1 MHz) |
| Vcore adjustment | - |
| Vmem adjustment | +0.4 V (0.1V) |
| Vtt adjustment | +0.3V V (0.1V) |
| PCI-E adjustment | within 90 MHz to 150 MHz (1 MHz) |
Note that the board lacks the most important overclocking feature: Gigabyte GC230D is unable raising voltage on the CPU core (Vcore). Therefore, we can't determine the frequency capability of the Diamondville core, and the overclocking result will directly depend on how successful a CPU specimen is. Since Atom 230 is soldered into the board, we can't try it with another motherboard. So we had to experiment with the available specimen. The final result is a stable operation of the CPU at 1.92 GHz:
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