Crucial Memory for Gateway NV7901U

Noob here and need some advice. I am new to upgrading memory. I have a Gateway NV7901U and want to go from 4GB RAM to 8GB RAM. I did a Crucial scan and it came up with 2 different memory modules.


These are both 8GB kits of 2x4GB.


DDR3 PC3-8500, CL=7, Unbuffered, NON-ECC, DDR3-1066, 1.5V, 512Megx64

DDR3 PC3-10600, CL=9, Unbuffered, NON-ECC, DDR3-1333, 1.5V, 512Megx64


Which one is better and which do you recommend that I get?
6 answers Last reply
More about crucial memory gateway nv7901u
  1. Get the DDR3 PC3-10600. Since your MB supports the faster ram, you might be able too eek out a little extra performance out of the system by using the faster clocked ram.
  2. abekl said:
    Get the DDR3 PC3-10600. Since your MB supports the faster ram, you might be able too eek out a little extra performance out of the system by using the faster clocked ram.



    Thank you for replying. But can you tell me what the CL7 vs the CL9 mean in the different speeds. I also just read about FSB speed of your mother board. It says my FSB speed is 1066. Should I get the RAM to match the FSB speed and if I get the higher speed RAM will it just run at the slower speed? Sorry for all the questions.
  3. CL's are the timings. 7-7-7-20 is a tighter faster timing than 9-9-9-24.

    You should get the RAM to match the FSB speed. Hence the recommendation for pc3-10600.

    In your case, the higher speed ram will run at it's rated speed. It's the slower ram that the system FSB would have had to downclock for.
  4. abekl said:
    CL's are the timings. 7-7-7-20 is a tighter faster timing than 9-9-9-24.

    You should get the RAM to match the FSB speed. Hence the recommendation for pc3-10600.

    In your case, the higher speed ram will run at it's rated speed. It's the slower ram that the system FSB would have had to downclock for.



    Ok so my FSB speed is 1066 so I should go with the PC3-8500 since it runs at 1066MHz.
  5. Correct. There's more to it, but the answer is the same.
  6. abekl said:
    Correct. There's more to it, but the answer is the same.



    Ok, thank you very much for assisting me.
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