Recent content by Rusty Shack

Here's what I did, and results: Bought a matching 2Gb DDR2 So-DIMM, and added it. They match, except for the product codes. (Not sure what the difference is, if any.) So I've got: Slot 1: Samsung M470T5663FBC-CF7 PC2-6400S-666-12-E3 (new one) Slot 2: Samsung M470T5663QZ3-CF7...

Best answer selected by Rusty Shack.

"Crucial" to know. Thanks.

Thanks, Pinhedd. Anyone else have any comments?

Someone ought to add that, "highest speed supported by both memory kits," is another way of saying, "the slower (max) speed of both memory modules."

Using 32-bit Windows? If so, you won't benefit from a memory upgrade. You're only using 3 Gb of your 4 Gb of RAM as it is. If your OS can address more than 4 Gb, you could go either way. 2x4Gb of same brand memory might be preferable, to leave more room and to avoid compatibility issues.

Current setup: ■Samsung R520 laptop ■Intel Pentium T4300 @ 2.10GHz ■Two memory slots: 1 empty, other has 2Gb Samsung M470T5663QZ3-CF7 PC2-6400S-666-12-E3 (CL=6) ■Windows 7 Home Premium 32-bit (no plans to change OS) 1) Which options are likely to be incompatible? Which is likely to be fastest...