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iBook G4 RAM question: question about RAM type
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Senior User
Join Date: Nov 2003
Status:
Offline
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I am trying to buy some RAM for my girlfriends computer from OWC. There are two options for a 1GB chip, but I am not sure what the difference is. Hopefully someone here knows the answer..
What I am unsure about is the first option:
1.0GB (1024MB) PC2700 DDR SODIMM 200 Pin Memory Module 128x64 CL 2.5
What does 128x64 CL 2.5 mean?
Here is the other option:
1.0GB (1024MB) PC2700 DDR SODIMM 200 Pin Memory Module
The difference in price is negligible so I want to make sure I get the right one for her laptop...
Also, OWC's prices are much cheaper than Ramjet.com. Is OWC a recommended place to buy RAM from? Thanks for the help.
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Mac Elite
Join Date: Apr 2000
Location: Los Angeles, CA
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CL 2.5 means CAS Latency 2.5ms, a measure of how long it takes for a memory look-up to the contents in a specific column on the current row. The 128x64 notation indicates this is a high-density DIMM (refer to this document for more info)
If you look closely at the description of both products, they're both CL2.5/128x64 DIMMs anyhow, except the cheaper one has a specific mention of the iBook CPU speeds it's keyed to work with (or maybe tested with).
For other RAM prices for your iBook, check out RAM Seeker and DealRAM.
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Posting Junkie
Join Date: Oct 2005
Location: Houston, TX
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Originally Posted by MOTHERWELL
Also, OWC's prices are much cheaper than Ramjet.com. Is OWC a recommended place to buy RAM from? Thanks for the help.
I prefer Newegg.
Originally Posted by ginoledesma
CL 2.5 means CAS Latency 2.5ms
Nanoseconds! 2.5 milliseconds for RAM would be epic slow.
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Mac Elite
Join Date: Apr 2000
Location: Los Angeles, CA
Status:
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My bad, yes I meant nanoseconds, not milliseconds.
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