P5KC MB with different memory speeds

[spdboy_2000]

hi Guys,

I have a Asus P5KC MB with 2GB DDR2 Crosair PC6400 C4 DHX memory. With the post XMass sale I am planning to buy an additional 2 GB RAM.

My question is should this 2 GB RAM be of the same spec as the existing ones?

Can I buy 2 x 1 GB DDR3 1333 RAM and use it along with the existing ones?

Can I buy 2 x 1 GB DDR2 1066 RAM and use it along with the existing ones?

Any advice will be really appreciated.

Thanks,

Deepak

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[spdboy_2000]

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