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Can I mix 266 and 400 DDR Memory?

 
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MarkW
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PostPosted: Wed Dec 17, 2003 11:01 pm    Post subject: Can I mix 266 and 400 DDR Memory? Reply with quote

I have two 512 meg DDR Memory Modules. They are both 512 meg as
mentioned and PC3200. The thing is the new one I just bought was a
400 (What does this number mean, is it speed)? and the other seems to
be a 266 going by the label on the module. I want to put these both in
a new system I'm building but I'm concerned if they will work
properly. Will it slow my system down or cause any reliability
problems? If so maybe I'm better off with just the 512meg 400 or
either upgrading the other to a 400.
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MarkW
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PostPosted: Wed Dec 17, 2003 11:05 pm    Post subject: Re: Can I mix 266 and 400 DDR Memory? Reply with quote

On Wed, 17 Dec 2003 17:01:14 GMT, MarkW
<markwco(removenospam)@comcast.net> wrote:

Quote:
I have two 512 meg DDR Memory Modules. They are both 512 meg as
mentioned and PC3200. The thing is the new one I just bought was a
400 (What does this number mean, is it speed)? and the other seems to
be a 266 going by the label on the module. I want to put these both in
a new system I'm building but I'm concerned if they will work
properly. Will it slow my system down or cause any reliability
problems? If so maybe I'm better off with just the 512meg 400 or
either upgrading the other to a 400.
I wanted to add this, if it is true that the 400 is faster but they

both work together would it help if I maybe put the 400 in the first
memory slot so that the system uses that first and not the 2nd module
as much?
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Guest






PostPosted: Thu Dec 18, 2003 8:45 am    Post subject: Re: Can I mix 266 and 400 DDR Memory? Reply with quote

If you mix DDR400, which is the same as PC3200, with DDR266 or PC2100,
then all your RAM will run at the DDR266 Speed. RAM when mixed will
run at the slowest speed of all the RAM installed so that the slowest
RAM will keep up. Mixing RAM is always a bad idea. It may work and
it may not. I think it might work.


On Wed, 17 Dec 2003 17:01:14 GMT, MarkW
<markwco(removenospam)@comcast.net> wrote:

Quote:
I have two 512 meg DDR Memory Modules. They are both 512 meg as
mentioned and PC3200. The thing is the new one I just bought was a
400 (What does this number mean, is it speed)? and the other seems to
be a 266 going by the label on the module. I want to put these both in
a new system I'm building but I'm concerned if they will work
properly. Will it slow my system down or cause any reliability
problems? If so maybe I'm better off with just the 512meg 400 or
either upgrading the other to a 400.
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Nicolas The Great
Guest





PostPosted: Fri Dec 19, 2003 11:06 am    Post subject: Re: Can I mix 266 and 400 DDR Memory? Reply with quote

MarkW <markwco(removenospam)@comcast.net> wrote in message news:<a631uv4qqsr85venu0sjvcu6ujekqnso32@4ax.com>...
Quote:
On Wed, 17 Dec 2003 17:01:14 GMT, MarkW
markwco(removenospam)@comcast.net> wrote:

I have two 512 meg DDR Memory Modules. They are both 512 meg as
mentioned and PC3200. The thing is the new one I just bought was a
400 (What does this number mean, is it speed)? and the other seems to
be a 266 going by the label on the module. I want to put these both in
a new system I'm building but I'm concerned if they will work
properly. Will it slow my system down or cause any reliability
problems? If so maybe I'm better off with just the 512meg 400 or
either upgrading the other to a 400.
I wanted to add this, if it is true that the 400 is faster but they
both work together would it help if I maybe put the 400 in the first
memory slot so that the system uses that first and not the 2nd module
as much?


What brand and type of mobo do you have? Because I think in order to
run that pc3200 you might need to run it in dual mode. That would mean
you need two sticks of pc3200.

Nick
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