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Old 12-29-2010, 04:17 PM
 
Location: NJ
4,927 posts, read 11,256,980 times
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I want to upgrade the RAM in my netbook. I did a scan on crucial.com and it came up with 2 options, both of which are the exact same price. What is the difference in these two:

Option 1:

Part #: CT1165194 • DDR2 PC2-5300 • CL=5 • Unbuffered • NON-ECC • DDR2-667 • 1.8V • 256Meg x 64 •

Option 2:

Part #: CT1211511 • DDR2 PC2-6400 • CL=6 • Unbuffered • NON-ECC • DDR2-800 • 1.8V • 256Meg x 64 •


What does CL=5 vs. CL=6 mean?
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Old 12-29-2010, 04:34 PM
 
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The difference is speed, CL stands for CAS Latency which is the time it takes from the memory module saying there's a free spot and it actually being used. Lower means it's quicker, however, the speed of the 6400 memory itself is quicker so it would make up for the delay in CL. If you are planning on replacing all the memory pick the 800 otherwise check what the speed/cl of the current memory because the motherboard will only go as fast as the slowest chip.
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Old 12-29-2010, 06:38 PM
 
Location: NJ
4,927 posts, read 11,256,980 times
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Thanks for the info. I actually decided to go with the 667 model since that is the type that is currently in the netbook. I did some further research and found that the 800 has caused some compatibility issues for some people.
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