DDR Or DDR2 Laptop Ram
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Original Message
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Name: bigron103
Date: May 12, 2007 at 10:11:42 Pacific
Subject: DDR Or DDR2 Laptop RamOS: xpCPU/Ram: 1.3Ghz Celeron MobileModel/Manufacturer: Research Machines NBook 4 |
Comment: Hi, Just a quick question of laptop ram. I currently own a RM Nbook 4000 laptop which has two DDR slots and to my knowledge can hold 512mb Ram. However, i'm a bit confused if I can put DDR 2 Ram in the slots. Is it backwards compatable and will it fit? Im a bit puzzled as i currently have PC2700 but noticed that DDR2 and DDR ram look exactly the same and so assumed DDR2 Would fit... If anyone could help me out it would be greatly appreciated.
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Response Number 1
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Name: grasshopper
Date: May 12, 2007 at 10:14:39 Pacific
Subject: DDR Or DDR2 Laptop Ram |
Reply: (edit)Go to www.crucial.com and use their tools to determine what's compatible with your machine. It's an excellent site for RAM. Keep Smiling
It makes them think you're up to something...
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Response Number 3
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Name: Sabertooth
Date: May 12, 2007 at 10:42:23 Pacific
Subject: DDR Or DDR2 Laptop Ram |
Reply: (edit)"Im a bit puzzled as i currently have PC2700 but noticed that DDR2 and DDR ram look exactly the same and so assumed DDR2 Would fit..." Easy there buddy - even though the width & pin count for DDR1 & DDR2 SODIMMS (laptop RAM) are the same, a conclusion drawn from such quick glances have led many to the false assumption that they are cross compatible. Unfortunately this is simply not the case as there are minuscule differences between the two types of modules. If you care to observe the sticks a little closer, you'd notice that while the heights for the two (DDR1 & DDR2 SODIMMS) are almost identical the notches & slot alignment differs just enough to make sure they are not cross compatible. In other words, you cannot pop a DDR1 stick in a DDR2 slot & vice versa. Goodluck!
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Response Number 4
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Name: OtheHill
Date: May 12, 2007 at 10:43:53 Pacific
Subject: DDR Or DDR2 Laptop Ram |
Reply: (edit)If you are currently using PC2700 you need to stick with DDR. DDR2 won't even fit in your computer. That said, you need to verify that any RAM you buy will be compatible. Adding faster RAM in the second slot will result in the faster RAM running at the speed of the slower RAM, if it boots at all. Best to stay with DDR333(PC2700). Additionally, your Laptop may not be able to utilize DDR400. Check at the laptop website to see if they have a RAM compatibility list for your computer. Try downloading a free utility called Everest home edition. This utility should give you detailed info on your RAM in addition to much else.
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