Adding more RAM to already-built computer?


I bought separate parts and assembled my computer about a year ago.

The only thing is that I have 4GB of RAM, and I want a bit more (6-8GB total)

This is the RAM that I bought:

I looked for other RAMs, but I think this is still the best one out there. [DDR3 with 7-7-7-21 timing]

1) Since I barely know anything about computer parts, what restrictions are there to buying RAM? In other words, how do I know if the RAM is compatible with the rest of the PC? [or even better, could you choose a RAM for me?]

2) Is it okay if I have 4GB of RAM with one type, and then buy another 4GB with a different brand and name, or does all of the RAM in one computer have to be the same brand and type?

3) If #2 is possible, then what RAM should I get?

This is what I have:



Graphics card

Hard Drive

Thank you so much!
3 answers Last reply Best Answer
More about adding already built computer
  1. Best answer
    Its ideal to use the same brand/model/timings of ram so if you can still get the same as what you have in the PC, get them. If you decide to go with another brand/model of RAM, replace all of it so your timings will be the same across all the memory boards.
  2. I use cpuz before ordering any new ram. I also pull one stick and check the label for a model number and google it for the voltage and timings. Matching those two specs is your best bet when you can't match the original brand.
  3. Best answer selected by Jineus.
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