Adding Dual-channel ram

[T0xSic]

Can I have two different frequencies of dual-channel DDR ram kits installed on one motherboard?

 

[Crashman]

All would have to operate at the lower frequency, as memory controllers can't do two speeds simultaniously. But yes, it's possible to run, say, dual channel PC2700 with dual channel PC3200 at PC2700 speed.

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