Articles: Mainboards

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Now it is high time we took a closer look at the mainboard BIOS. When the article was written we had BIOS version 0215 available. It was based on AMI code. It looks very much like the BIOS of another ASUS mainboard on i975X chipset – ASUS P5W DH Deluxe – and boasts very similar lists of options. However, when we took a quick pick at ASUS P5W DH Deluxe mainboard in our previous articles, we didn’t pay due attention to the BIOS. Now we are going to correct this mistake with the help of our today’s hero - ASUS P5W64 WS Professional mainboard.

Most settings are in the Advanced section, so let’s start with the JumperFree Configuration page. Although at first the page doesn’t look very impressive, as there are only AI Overclocking and Performance Mode set to Auto and Stable Mode option available. The funny thing is that by default this option is Disabled. Well, you all already know that you can select one of the preset overclocking profiles for AI Overclocking, or go with automatic overclocking within relatively small range performed by AI N.O.S. if needed. If you decided to set everything manually, then the page will open up as follows:

FSB frequency can be adjusted from 100MHz to 500MHz with 1MHz increment. The memory frequency for the CPU running at 266MHz (1064MHz) nominal frequency can be selected from the following list: DDR2-400 / 533 / 667 / 711 / 800 / 889 / 1067MHz.

As for the voltages, Vmem may vary from 1.85V to 2.4V with 0.05V increment, the CPU Vcore - from 1.225V to 1.7V with 0.0125V increment, the MCH chipset voltage – from 1.5V to 1.8V with 0.1V increment.

FSB frequency can be adjusted with “+” and “-“ keys, and in all other cases, you can select the proper setting from the drop-down list.

The next page from the Advanced section we would like to draw your attention to is CPU Configuration. It lists the major processor specifications correctly, except the fact that the mainboard sees the CPU clock frequency multiplier as unlocked and can be increased up to 20x. in case of ASUS P5W DH Deluxe, we didn’t experience anything like that when we installed the same CPU.

Could it be this bug that caused numerous rumors about ASUS mainboards allowing clock multiplier increase? Actually, it is not like that at all, and the only thing you can do with the Default CPU Ratio parameter is reduce the coefficient to 6x. But what for? The default x7 multiplier is already low enough for overclocking.

Moreover, here you can set the power saving parameters and even disable one of the processor cores. In this case, the system will recognize Allendale based CPU as Conroe-L based one.

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