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BIOS
Asus Commando BIOS is based on AMI code and looks very familiar for those of you who have worked with Asus mainboards before.
In the past all the settings of the Asus BIOS Setup used to be spread over numerous sections, some of which were not always so obvious. For example, memory timings could be on the CPU configuration page. But now this drawback has been eliminated. All major overclocking parameters have been moved from the JumperFree Configuration page into a separate Extreme Tweaker section. Although in the Auto mode, there are not that many settings available anyway.
But things will change dramatically if you dare dig deeper into this section. If you give up the Auto setting for the memory timings, you will get the chance to adjust not only the primary timings, but also the secondary timings. It is extremely important for achieving higher working frequencies.
If you switch AI Tuning into Manual mode, you will get full access to all frequencies and voltages.
The mainboard supports the following ranges for the available parameters:
Parameter | Range | Increment |
CPU Frequency | 100-650 MHz | 1 MHz |
DRAM Frequency | DDR2-533, 667, 800, 889, 1067 | - |
PCI Express Frequency | 90-150 MHz | 1 MHz |
CPU VCore Voltage | 1.1 – 1.85 V | 0.0125 V |
FSB Termination Voltage | 1.2 – 1.55 V | 0.05 V |
NB VCore | 1.25 – 2.025 V | 0.025 V |
Memory Voltage | 1.8 – 3.375 V | 0.025 V |
DDRII Channel A REF Voltage | -30...+30 mV | 10 mV |
DDRII Channel B REF Voltage | -30...+30 mV | 10 mV |
DDRII Controller REF Voltage | -30...+30 mV | 10 mV |
SB VCore (SATA, PCIE) | 1.5 – 1.85 V | 0.05 V |
SB Chipset Voltage | 1.05 – 1.225 V | 0.025 V |
The top voltages on the chipset North Bridge and memory look the most impressive here. Far not every mainboard supporting DDR memory could allow over 3V of power, and here we have DDR2 and 3.375V! You should be very careful with this setting…
