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Can Hynix 4GB DDR3 10600s and 12800 work together in same laptop?

Hi

I have Dell Inspiron 5110 latpop (i5 2.4Ghz 4GB Ram, 750GB HDD 1GB Graphics)

I wanted to upgrade my laptop memory to 8GB from current 4GB ram.

Currently installed Ram is hynix 4GB DDR3 10600S (see below pic)


So I ordered same configuration ram but instead of that seller sent me 4GB DDR3 12800(see below pic)


My laptop does recognize complete 8GB ram and runs without any issue. I tried windows experience index and it jumped to 7.4 from 5.9(Ram) and overall 5.9 from 4.6.

Question is - Should I replace ordered ram(which is 12800) to 10600? or should I use same one?

I tried googling about same issue but didnt got much help. Few people suggested that I should lower the speed from bios. But Dell bios doesnt give any option for that. Any more help?

Should I keep different speed memory modules in same laptop or should I change? If I keep any adverse impact on laptop?
4 answers Last reply Best Answer
More about hynix 4gb ddr3 10600s 12800 work laptop
  1. Best answer
    You may have one of two outcomes.

    1. The RAM will work and all RAM will run at the lower speed.

    2. Your PC will fail to boot up with two different sticks of RAM. This happened to me even when I bought what I thought was similar specifications. It would boot with either the old or the new RAM, but not with both. Had to buy a new kit if tested compatible RAM. Was a good lesson in compatibility black magic.
  2. Karsten75 said:
    You may have one of two outcomes.

    1. The RAM will work and all RAM will run at the lower speed.

    2. Your PC will fail to boot up with two different sticks of RAM. This happened to me even when I bought what I thought was similar specifications. It would boot with either the old or the new RAM, but not with both. Had to buy a new kit if tested compatible RAM. Was a good lesson in compatibility black magic.


    Thanks for quick reply. I didnt got any issue till date. I am using both of them and yes I can see 8GB in windows and bios too. So should I keep it and use?
  3. if it works, then you are using it at the lower speed.

    SO again, you have options:

    1. Keep it as-is.
    2. Return the faster memory for matched memory - you are back at the first risk issue.
    3. Replace the slower memory with faster memory - ditto.

    If I were in your shoes I'd leave it alone at this point in time. You're not harming anything and there are risks involved with any alternate choice that you already overcame with your current option.
  4. Karsten75 said:
    if it works, then you are using it at the lower speed.

    SO again, you have options:

    1. Keep it as-is.
    2. Return the faster memory for matched memory - you are back at the first risk issue.
    3. Replace the slower memory with faster memory - ditto.

    If I were in your shoes I'd leave it alone at this point in time. You're not harming anything and there are risks involved with any alternate choice that you already overcame with your current option.


    Thanks I would keep it as-is. As I am not harming anything, faster one will work at lower speed so no problem. Thanks :)
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