[Technic] Need Help Figuring Memory Swaps

[Chad Schweer]

click here and scroll down... gives the basics
http://en.wikipedia.org/wiki/DDR2_SDRAM
"Note: DDR2-xxx (or DDR-xxx) denotes data transfer rate, and describes raw
DDR chips, whereas PC2-xxxx (or PC-xxxx) denotes theoretical bandwidth
(though it is often rounded up or down), and is used to describe assembled
DIMMs."

I could have written it all out but CTRL+C
is my friend.

One thing to remember (and if this has changed,
someone correct me) is that if you miss match
RAM speeds the computer may still function
but both sticks of RAM will be operating at the
lower of the two transfer rates.  This may not
be enough of a difference to matter, but it is
something to keep in mind.

Like I said, if I'm wrong correct me, but that
is the way it used to be.

_________________________________________
Chad Schweer
Technology Director
Wellington-Napoleon R-IX School District
PO Box 280
800 HWY 131 
Wellington, Missouri 64097
Phone: 816-934-2531 
Fax: 816-934-8649


-----Original Message-----
From: technic-bounces at lists.more.net [mailto:technic-bounces at lists.more.net]
On Behalf Of Denise Ash
Sent: Tuesday, June 03, 2008 4:46 PM
To: technic at lists.more.net
Subject: [Technic] Need Help Figuring Memory Swaps

Trying to get my workstations to 1 GB........

Which number here is the speed?  What do I have to match to match the speed.

DDR2 PC2-4200  DDR2-533 is what I can buy now - 512 MB Stick

The machine has DDR2 PC2-4200U-444 - 1 512 MB Stick

Do I match the 4200 or the 533 and 444?  If I can't match the 444 then I
have to go to just a 1 GB stick right.

I am trying to use some of the existing memory I have.

Thanks
Denise

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