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Upgrading 1GB to 3GB RAM


BooGhost

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Hi all

 

Some time ago I got myself a M2N-SLI Deluxe with this RAM (2*512MB):

 

TWIN2X1024A-6400

http://www.newegg.com/Product/Product.asp?Item=N82E16820145566

 

Now i want to get some more RAM, and i'd like to get 2GB (2*1GB):

 

TWIN2X2048-6400

http://www.newegg.com/Product/Product.aspx?Item=N82E16820145590

 

TWIN2X2048-6400C5DHX

http://www.newegg.com/Product/Product.aspx?Item=N82E16820145175

 

TWIN2X2048-6400C4

http://www.newegg.com/Product/Product.aspx?Item=N82E16820145034

 

 

Would there be any problem running 2 512MB and 2 1GB sticks (Dual Channel) ? If not which of those 3 should I choose? or do you have any better suggestion. I've heard RAM can be of different sizes as long as they got the same CAS Latency and/or Voltage, so is this true?

 

Thanks in advance

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Hi all

 

Some time ago I got myself a M2N-SLI Deluxe with this RAM (2*512MB):

 

TWIN2X1024A-6400

http://www.newegg.com/Product/Product.asp?Item=N82E16820145566

 

Now i want to get some more RAM, and i'd like to get 2GB (2*1GB):

 

TWIN2X2048-6400

http://www.newegg.com/Product/Product.aspx?Item=N82E16820145590

 

TWIN2X2048-6400C5DHX

http://www.newegg.com/Product/Product.aspx?Item=N82E16820145175

 

TWIN2X2048-6400C4

http://www.newegg.com/Product/Product.aspx?Item=N82E16820145034

 

 

Would there be any problem running 2 512MB and 2 1GB sticks (Dual Channel) ? If not which of those 3 should I choose? or do you have any better suggestion. I've heard RAM can be of different sizes as long as they got the same CAS Latency and/or Voltage, so is this true?

 

Thanks in advance

 

Your 512MB modules are single-ranked, while most 1GB DDR2 modules including all of the TWIN2X Corsairs are double-ranked. You can usually use a TWIN2X2048-6400 kit with your existing TWIN2X1024A-6400 kit as long as the revision numbers match; however, because you are mixing single- and double-ranked modules in the same system, your system's overall performance will be slightly degraded even if the IC chips are the same in all four of the modules.

 

Unfortunately, if you order online, you'll never know which revision of the modules you'll be getting: A lot of times, you will get a revision which does not play well with your existing modules, resulting in numerous stability issues and/or a refusal to even POST.

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