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#11
Hello Gautam,
Sorry for the delayed reply.
As linnemeyerhere said, a matching pair is two or more identical sticks of RAM.
Normally when you buy 2 or more GB, the ram will normally come as a pack of 2., these are identical.
If the pack has only 1 stick, then it would be better to buy 2 packs at the exact same time from the same ad/offer.
To ensure they are identical, before opening the packages, the serial/model number should be displayed at the front of the package (A sticker on the RAM), check that each pack matches right down to the T, any difference's, send them back at try again.
But as i said, as a rule, RAM of 2 or more Gb come in packs of two.
If you go here - RAM Memory Upgrade: Dell, Mac, Apple, HP, Compaq. USB drives, flash cards, SSD at Crucial.com
At the top is a scanner which scans what ram and it will then give you a list of compatiple ram.
Either buy through them, or write down the model/serial number of the ram you would like and google it to see if you can save a few bob.
Don't worry about speed, you would only need the lowest speed if all you do is general work. Faster ram is for more memory intensive work.
Lucky