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Different rams, timing and voltage

My notebook already has a 4gb stick of ram that is SO-DIMM DDR3 PC3-12800 CL-11 1.35v

I purchased a stick of Corsair Vengeance 4gb SO-DIMM DDR3 PC3-12800 CL-9-9-9-24 1.5v.
Are these going to be compatible since they have different voltage and timings?

Notebook model: Sony vaio SVF14219SGB.
7 answers Last reply Best Answer
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  1. It could be possible if your notebook bios will let you do so.

    What is the speed of each stick in mhz?
  2. Best answer
    Hi Kong Eng
    Mixing different brands , voltages and timings can be very problematic , we see so many cases here where this does not work
    seeing as you have the ram , you can try , but do not be suprised if your notebook does not boot
    I suggest getting exactly the same brand timings and voltages ( same model number ) when installing new ram
  3. Agreed, should probably just put the new stick in now alone and get another one of the same.
  4. Hi iron8orn, it's 1600mhz for each stick.

    Is there any solution for this ram mixing? Not sure how should I do it, will it cause damage to my laptop?
  5. I would need the exact timing of the currently installed stick but honestly you would need to take it way over its rated voltage and the Vengeance stick would not be running at full performance.

    If you even boot (flipping a coin) you would most likely not have the best stability.

    As for damage I do not know what to say as it is a laptop and resetting the bios is not fun so i guess flip another coin.
  6. Then I would probably get a similar stick with my original one. Anyway, these
    are the timing of my original memory. Thanks :)

    DRAM Frequency 798.7 Mhz
    CL - 11
    tRCD - 11
    tRP - 11
    tRAS - 28
    CR - 2T
  7. it would probably be better to match the vengance , being a newer ram
    try that and if it works on its own , it would most likely be easier to get than an older ram
    plus it has better timings with a cas latency of 9 and not cas11 like your original stick
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