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Mix DDR and DDR2 - Page 2

post #11 of 14
No, absolutely not.

Let me give you a couple of specifics:

1) DDR2 is based on 1.8V nominal VDDIO and DDR is 2.5V. Different IO drivers, different termination etc
2) DDR2 has complements for the DQS clocks. DDR only uses complements on CK (CK/CKN), whereas DDR2 has a DQS/DQSN for each data byte

as an FYI low-power DDR (or mobile-ddr) is the same as DDR, but uses a 1.8V VDDIO (lower power, but also does not support the high speeds). Mainly used in cell phones and other low power embedded applications.
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post #12 of 14
Quote:
Originally Posted by cokker View Post
I thought id seen somewhere about being able to use both.

But i don't know if you can use both (at the same time).
yea there are a few motherboards that support both but you can't use them at the same time.
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post #13 of 14
Quote:
Originally Posted by lightsource View Post
yea there are a few motherboards that support both but you can't use them at the same time.
Thats answered my question
    
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post #14 of 14
Thread Starter 
when he gets it, if he'll let me, i'll try it and post up !
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