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Old 08-01-2004, 10:06 AM   #1
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Need a site:DDR modules single sided/double sided

When building a server on a Socket A motherboard, one may have the need for lots of RAM. The Nforce2 dual channel chipset is usually found on motherboards with three DIMM sockets allowing 3 gB. Since 512 mB modules are cheaper than 1024 mB modules, I found a mobo with four sockets, thinking I could use 4 X 512 mB to get 2 gB more cheaply than 2 X 512 + 1X 1024. However, there is a "Catch-22". While the first two modules of 512 mB may be either single or double sided, the last two must be single sided. Is there a site that classifies DIMMs by sided-ness? The DIMM manufacturers, chip makers and mobo makers do not seem to speak the same language when they describe organisation. From what I have found so far, the 512 mB single sided DIMMs are rare and expensive so the advantage of 4 sockets on Gigabyte's GA7N400L1 may be illusory.
Old 08-02-2004, 01:27 PM   #2
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I've found a lot of hard to find memory and good tech help at
Don't know about your particular needs but they can probaly help.

Old 08-02-2004, 04:32 PM   #3
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Single sided memory is more common than double sided memory. If you see something like 64M X 64 bit for 512 megabytes memory module, it will mean its single sided. What 64M X 64 bits mean is it uses 64 megabyte memory chips and the each chip has 8 bit data bus. This comes to about 8 chips. About 8 chips can fit on one side. If you see something like 32M X 64 bits, it will be double sided memory that will have 16 chips total on the memory module. You can always call or e-mail the computer store for more information.

BTW, this thread should be in General.


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