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DDR2 Ram question

post #1 of 4
11/1/09 at 10:45pm
Thread Starter 
my notebook previously was on 3gb ram and now i would like to run 64bits Windows 7 so went down to SLS to purchase 1 piece of 2gb RAM.

Here are the model. I duno will have any problems or not as both rams are not the same. I experienced problems booting once in awhile but after going into safe mode, i can boot up in normal mode again. I am not sure is it the OS or the ram.

My original ram is DDR PC2-5300 (333mhz). The shop installed the 2nd piece PC2-6400 (400mhz). Now I am suppose to boot win7 in 64bits and running duo core, am i rite?

I am hoping there would not be any compatibility issue. Hope you guys can advise. Thanks.
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post #2 of 4
11/1/09 at 11:25pm
You should not have issues. All DDR2 is compatible with other DDR2. Thank JEDEC for that. It will run at the slower speed.
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post #3 of 4
11/2/09 at 12:17am
Thread Starter 
Quote:
Originally Posted by powerpack View Post
You should not have issues. All DDR2 is compatible with other DDR2. Thank JEDEC for that. It will run at the slower speed.
Hi,

i dont understand the "thanks JEDEC" part. How to i make it run at its optimum speed then?
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post #4 of 4
11/2/09 at 12:42am
JEDEC is a group that sets the standards. All RAM will downclock to the slower speed if compatible. That is the thanks to JEDEC.
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