PC2700 or PC3200
Hi, I have a 1.5Ghz 15" PB with 512MB of RAM. I know the memory installed is PC2700 333Mhz.
My question is if there is a problem installing a extra 1GB PC3200 400Mhz Sodimm.
The thing is the pc2700 1gb is 3 times more expensive.
Does anyone know if I can do this. I've read of some hot temp issues.
Thanks.
My question is if there is a problem installing a extra 1GB PC3200 400Mhz Sodimm.
The thing is the pc2700 1gb is 3 times more expensive.
Does anyone know if I can do this. I've read of some hot temp issues.
Thanks.
Comments
2700 runs 167MHz and 3200 runs 200MHz. Check your specs.
But with DDR RAM, that number gets doubled. 2x167MHz is 333, and 2x200MHz is 400. And both are one eighth of the throughput rate, meaning 8x333 is 2700, and 8x400 is 3200. That's why they call them DDR-333/PC-2700 and DDR-400/PC3200.
http://docs.info.apple.com/article.html?artnum=300572
Of course is DDR. Extraced from the manual:
Installing Additional Memory
Your computer comes with two memory slots,one above the other,that you access
from the bottom of the computer.Your computer comes with a minimum of 512
megabytes (MB)of Double Data Rate (DDR)Synchronous Dynamic Random-access
Memory (SDRAM)installed.The memory slots can accept an SDRAM module that
meets the following specifications:
 Double Data Rate Small Outline Dual Inline Memory Module (DDR SO-DIMM)format
 1.25 inch or smaller
 512 MB or 1 gigabyte (GB)
 200-pin
 PC2700 DDR 333 Type RAM
Depending on the configuration of the PowerBook you purchased,both memory slots
may already be full.
The maximum amount of memory you can install in your PowerBook is 2 GB,using
1 GB DIMMs in both memory slots.
The Mac mini is suposed to work with PC3200 but the PB don't. I just don't want to fry my PB.
I know that I should pay more for the pc2700 and avoid any problems but It's not only the cost of the memory, the newer I can get it right now, the pc2700 I have to wait it between 2 and 5 weeks.
PC3200 (commonly referred to as DDR400) memory is DDR designed for use in systems with a 200MHz front-side bus (providing a 400 MT/s data transfer rate). The "3200" refers to the module's bandwidth (the maximum amount of data it can transfer each second), which is 3200MB/s, or 3.2GB/s. PC3200 is backward-compatible for PC1600, PC2100, and PC2700.
I believe this is the answer, but I don't know if this refers to crucial memory or any brand.
From the crucial website (http://www.crucial.com/library/memory_speeds.asp)
PC3200 (commonly referred to as DDR400) memory is DDR designed for use in systems with a 200MHz front-side bus (providing a 400 MT/s data transfer rate). The "3200" refers to the module's bandwidth (the maximum amount of data it can transfer each second), which is 3200MB/s, or 3.2GB/s. PC3200 is backward-compatible for PC1600, PC2100, and PC2700.
I believe this is the answer, but I don't know if this refers to crucial memory or any brand.
I don't think Crucial actually manufactures memory chips. If you look closely at their offering of computer memory, the computer memory chips comes from several sources, so their statement is about DDR400(PC3200) and not just a specific type of memory only available at Crucial.
I just don't want to fry my PB.
You won't fry it. Even if it totally rejects PC3200 RAM, all you'll get is the no-RAM beeps, and you can just pop PC2700 back in.
How much are you getting PC3200 for? Last time I checked they were both about the same. DDR2 was cheaper. Anyways, if you get 3200 let us know how it works.
The thing Plasma is I live in Argentina and things don't follow any pattern.
PC2700= U$S 50-60 (have to order to local shop)
PC3200= U$S 130-150 (out of town, have to add S&H)
I probably go with DDR400. Results to come.