So we're back to ... how do I know it's compatible?

Post #410,060 by drook 5/11/16 4:38:58 PM 5/11/16 4:38:58 PM Reply	So we're back to ... how do I know it's compatible? I'm assuming as long as it's DDR2-667 it will match what I have, and any matched pair of DDR2 will work? -- Drew
Post #410,061 by Another Scott 5/11/16 5:12:49 PM 5/11/16 5:12:49 PM Reply	It should work that way. You'll probably have no troubles. Mac can/could be more temperamental. E.g. Ramjet: Non-Stacked IC's: Ramjet uses a Non-stacked module for the 4GB SO-DIMM module for the MacBook. The cheaper stacked IC variety of 4GB SO-DIMM draws more power, which increases heat and decreases battery life. Ramjet ONLY uses premium non-stacked chips. As long as your listing is correct and the new parts are: PC2-5300, DDR2-667, 667Mhz, Latency 5-5-5, Non-ECC, Unbuffered, 1.8V, 200pin SO-DIMM then you should be Ok. (Don't worry about the Latency stuff.) https://en.wikipedia.org/wiki/SO-DIMM#/media/File:Laptop_SODIMM_DDR_Memory_Comparison_V2.svg "Matched pairs" are safer, of course, but it's probably not necessary. Cheers, Scott.
Post #410,063 by drook 5/11/16 5:39:03 PM 5/11/16 5:39:03 PM Reply	Does the PC number matter? http://www.amazon.com/Crucial-PC2-5300-200-Pin-Notebook-CT25664AC667/dp/B000F7QRTG/ref=sr_1_4?ie=UTF8&qid=1463002456&sr=8-4&keywords=DDR2-667+2+g+sodimm The title on that one says it's PC2 5300, the detail says it's PC5400. -- Drew
Post #410,064 by Another Scott 5/11/16 6:00:24 PM 5/11/16 6:00:24 PM Reply	As long as it's close, it shouldn't matter. https://en.wikipedia.org/wiki/DDR2_SDRAM#Specification_standards * Some manufacturers label their DDR2 modules as PC2-4300, PC2-5400 or PC2-8600 instead of the respective names suggested by JEDEC. At least one manufacturer has reported this reflects successful testing at a higher-than-standard data rate[6] whilst others simply round up for the name. The PC number is something like a data transfer rate. That's kinda advertising if it's only a slight delta from the standard. In that Amazon description case, it's probably just a typo. HTH. Cheers, Scott.
Post #410,066 by drook 5/11/16 6:16:50 PM 5/11/16 6:16:50 PM Reply	Thanks ... someday I'll learn to put Wikipedia in my search terms I was looking for an explanation of the terms and kept hitting sales pages. -- Drew
Post #410,062 by a6l6e6x 5/11/16 5:28:04 PM 5/11/16 5:28:04 PM Reply	Well, to fit mechanically you need SoDIMM (i.e. small outline) modules. And again mechanically you probably have 200 pin modules so avoid the 240 pin module used on desktops. Other than that, you should be OK. Alex "There is a cult of ignorance in the United States, and there has always been. The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that "my ignorance is just as good as your knowledge." -- Isaac Asimov

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