RAM Upgrade

I've the Samsung R519 laptop, it has 2GB DDR2 RAM (2x 1GB), I think it can be upgraded to 4GB DDR2 RAM (2x 2GB) but how can I check to confirm?

http://www.ultraimg.com/images/ITaYw.png

Comments

  • hardeephardeep Posts: 2,330
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    Use this - it should tell you everything you need to know

    http://www.crucial.com/uk/systemscanner/
  • chrisjrchrisjr Posts: 33,282
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    Go to the Crucial website http://www.crucial.com/uk/ and use their Memory Advisor tool. That should tell you what options are available.

    Also what operating system are you using. If it is 32 bit then no point going beyond 4GB as it won't be able to use the extra memory. If it's 64 bit then you can go beyond 4GB if both the laptop and your wallet can handle it :)
  • flagpoleflagpole Posts: 44,641
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    DDR 2 is ****ing expensive.

    Since you will have your existing ram as a fallback maybe you might want to look at some second hand on flea bay.
  • CasterinaCasterina Posts: 148
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    I've used Cruicial website, CPU-Z and here's the result,

    http://www.ultraimg.com/images/1Vy6r.jpg

    So I should buy 2x 2GB DDR2 PC2 6400 of the same brand?
  • chrisjrchrisjr Posts: 33,282
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    Casterina wrote: »
    I've used Cruicial website, CPU-Z and here's the result,

    http://www.ultraimg.com/images/1Vy6r.jpg

    So I should buy 2x 2GB DDR2 PC2 6400 of the same brand?
    Yes you could. But be careful you get Non ECC type memory. If you get ECC type it won't work. So check the wording of any ads you look at when choosing the RAM carefully to get the right type.
  • CasterinaCasterina Posts: 148
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    chrisjr wrote: »
    Yes you could. But be careful you get Non ECC type memory. If you get ECC type it won't work. So check the wording of any ads you look at when choosing the RAM carefully to get the right type.
    What MHz should I get? 400 or 800MHz?
  • chrisjrchrisjr Posts: 33,282
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    Casterina wrote: »
    What MHz should I get? 400 or 800MHz?
    Either.

    It looks like the laptop is designed for 400MHz. But if you stick 800MHz in all that will happen is it will run at 400MHz instead. Unless the motherboard memory bus can run at 800MHz then you won't get any speed increase by using 800MHz RAM.

    So unless 800 is way cheaper than 400 there is probably not much to be gained by going for 800.
  • CasterinaCasterina Posts: 148
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    chrisjr wrote: »
    Either.

    It looks like the laptop is designed for 400MHz. But if you stick 800MHz in all that will happen is it will run at 400MHz instead. Unless the motherboard memory bus can run at 800MHz then you won't get any speed increase by using 800MHz RAM.

    So unless 800 is way cheaper than 400 there is probably not much to be gained by going for 800.
    On the Samsung website, under System Memory, it says 800MHz

    http://www.samsung.com/uk/support/model/NP-R519-FA06UK-techspecs
  • chrisjrchrisjr Posts: 33,282
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    Casterina wrote: »
    On the Samsung website, under System Memory, it says 800MHz

    http://www.samsung.com/uk/support/model/NP-R519-FA06UK-techspecs
    Hmm.

    Wonder why it's got 400MHz RAM in it at the minute then?

    Anyway if it will take 800 at full speed then no harm fitting that. And even if it doesn't it will still work at the lower speed.
  • SexbombSexbomb Posts: 20,005
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    I've got 2 sticks of 800mhz 2gb DDR ram that I had in my old pc as I upgraded it, how much is it worth selling for?
  • Mr DosMr Dos Posts: 3,637
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    Could the 400/800 malarky be down to DDR (double data rate). CPU-Z shows my DDR3 RAM as 931MHz, but it's running at 1800.

    http://en.wikipedia.org/wiki/Double_data_rate
  • evil cevil c Posts: 7,833
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    My PC Chips M805 m/board had a similar thing to this and I'm trying to remember what I did from 12 years ago. The FSB automatically doubled its speed with the right CPU/RAM combination (I had an Athlon T-bird 850 overclocked to 1.1).

    OK, I've found it on the web. The actual bus frequency was 100 MHz and because the Athlon CPU used Double Data Rate bus the effective bus speed was 200 MHz.

    So if I've got this right, as your CPU supports 800MHz FSB, I think that if you buy the 800MHz RAM it should then double the speed.
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