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"Install memory in pairs" How does that work for 3GB?

"Install memory in pairs" How does that work for 3GB?

I just picked up a used Thinkpad X60 for the road, and am maxing out the memory on it. According to the docs, it can handle 3GB max, with a total of 2 slots.

Asked by: Guest | Views: 61
Total answers/comments: 4
Guest [Entry]

I'm surprised it's asking for matched pairs, but if that is accurate, then you'll need to do 2x2GB and waste 1GB. When it says "handles 3GB max", it means that the chipset won't address any more than 3GB, so any extra memory just won't be seen by the OS.
Guest [Entry]

I would also recommend just going for the 2x2. Who knows, you might install the 64bit version of Vista or Windows 7 someday and get to use all 4 GB :)
Guest [Entry]

"Take a look at supplier recommendations. Taking two local suppliers I use as examples, for an X60, Crucial recommend a maximum of 2GB as 2 x 1GB but MemoryC recommend 4GB as 2 x 2GB (though, of course, you would only fully benefit from that with an OS that can use that much memory). Results from your local suppliers may differ. You need to make sure you use the exact description of the machine when deciding which components are correct.

Remember, too, that to access larger memory amounts, a BIOS upgrade may be needed so check the manufacturer's recommendations on that.

Finally, more RAM generates more heat and this can be an issue that affects, at least marginally, the operation and longevity of the machine as well as increasing costs, reducing battery life and increasing heat output."
Guest [Entry]

"From Lenovo's Support Website:

Memory 256MB, 512MB, 1GB, or 2GB and supports up to 4GB maximum memory
Note: Only 64-bit operating systems support more than 3GB of system memory (RAM). Intel Chipsets 945GM and 945PM do not support more than 3GB system memory (RAM), even when a 64-bit operating system is installed."