All DDR2 Ram is same?

January 4, 2012 at 06:24:14
Specs: Windows 7
all ddr2 rams are same?

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#1
January 4, 2012 at 06:46:51
No, there are different types of DDR2 modules. DDR2 is more thought of as a specification. There are desktop and laptop modules as well as different speeds such as PC2-3200, 4200, 5300, 6400 and 8500. The modules are keyed different than DDR and DDR3 slots, so they are not backward compatible either.

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#2
January 4, 2012 at 07:04:11
Also the have different timings and voltage. Official ddr2 memory voltage is 1.8v but most factory overclocked memory comes with 2.0 - 2.2v (pc2 8500 aka ddr2 1066).

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#3
January 4, 2012 at 11:05:53
If you are asking because you want to add additional RAM (memory) to your computer then I suggest you go to crucial.com and use their online configurator. There is also error correction RAM, which is mainly used in business machines. For best results you should match what you currently have.

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#4
January 5, 2012 at 07:56:50
thanks all for the reply :) but, all ram is compatible with any slot?

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#5
January 5, 2012 at 11:05:26
Response #1 above answered that. The RAM modules may be different lengths and the notches (key) in the bottom of the module are different. RAM will only install one direction too, due the the keys in the bottom.

DDR2 Desktop RAM and Laptop RAM are also different size.

Does that now answer your question?


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