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Recommended
The Book of Overclocking: Tweak Your PC to Unleash Its Power
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Home » Memory
Memory Overclocking
Author: Gabriel Torres
Type: Tutorials Last Updated: June 19, 2005
Page: 4 of 6
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Asynchronous Mode

As we explained, some motherboards allow you to increase the memory clock separately from the CPU external clock, which is the best option for achieving a high overclocking.

There are two ways of configuring the memory clock on asynchronous motherboards: using predetermined  fixed value or typing in the clock you want. This option will depend on the motherboard model.

The motherboard we saw in Figure 3, the memory clock options are fixed. As you can see, you can only choose the memory clock from a predetermined list of settings. This is not the best case, but it is better than not having any memory overclocking option at all.

The best scenario is to have a motherboard where you can type in the memory clock you want, like you can see in Figure 5. Usually, you need to change a configuration called "DDR Timing Setting," "Clock Control," "System Performance," or similar from "Auto" to "Manual" in order to change the memory clock.

Memory Overclocking
click to enlarge
Figure 5: Memory clock configuration

As we mentioned before, you will need to increase the memory clock, save the configuration, reboot your PC, and test if the memory overclocking worked or not. If it worked, you need to repeat the process again trying a higher clock. If not, you need to repeat the process again trying a lower clock. You will need to repeat the whole process several times until you find out the maximum clock rate your memory accepts.

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