2GB extension to 1GB ram?

By psmaster72
Jan 4, 2009
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  1. hi there,

    my computer is currently running on a 1gb ram chip and i have slots for more ram can i put a 2gb ram in one of the extension slots and have the computer running on 3gb of ram? i have heard the chips have to be identical but i was not sure.
  2. misha

    misha Newcomer, in training Posts: 18

    no issues - as long as you're using a modern mb and you're wearing brown pants. otherwise, check the board manual.
  3. Ultiweap

    Ultiweap TechSpot Enthusiast Posts: 742

    You can use it like you make but it is recommended to put the same.
  4. misha

    misha Newcomer, in training Posts: 18

    amagnien, why, if i may ask?

    and if you're touting dual channel, remember, it's 3gb against 2gb...
  5. MetalX

    MetalX TechSpot Chancellor Posts: 1,909

    Depending on the application, 2 GB running dual channel might be better than 3 GB running single channel because the dual channel configuration has twice the memory bandwidth.
  6. psmaster72

    psmaster72 Newcomer, in training Topic Starter

    so you are saying that i should just buy another 1 gb chip instead would that be faster than relacing the 1gb chip i have with a 2gb chip? would putting a 2 gb chip in with my 1gb chip make it slower than just putting either another 1gb chip or a 2 gb chip by itself?
  7. Technochicken

    Technochicken TechSpot Paladin Posts: 903

    twice the theoretical bandwidth. In real life applications, dual channel memory never actually has twice the bandwidth of single channel. And what OS are you using? With windows xp, there is no point upgrading to 3 gigs of ram, and you would be well off with 2, but with vista you should probably go with 3, since it uses much more resources.
  8. psmaster72

    psmaster72 Newcomer, in training Topic Starter

    im using windows xp amd athlon 2.20ghz 3500+ proccessor 64 bit
  9. Technochicken

    Technochicken TechSpot Paladin Posts: 903

    So go with 2 gigabytes in total.
  10. psmaster72

    psmaster72 Newcomer, in training Topic Starter

    one more question about the chips ddr and ddr2 whats the difference and are they compatible with my pc? also im not sure how many pins i need.
  11. Technochicken

    Technochicken TechSpot Paladin Posts: 903

    What is the brand and model of your computer? And what does the label on the installed stick of ram say?
     
  12. psmaster72

    psmaster72 Newcomer, in training Topic Starter

    not sure on the label on the stick as i havent opened my computer up. custom built computer it has asus mother board tho
  13. Technochicken

    Technochicken TechSpot Paladin Posts: 903

    Well, to tell what type of ram it uses, you would need to know the model of the motherboard, or the type of ram already installed. If the computer is relatively new, it will most likely be ddr2 ram, but you would want to make sure. If you want to find out without opening your computer, google search and download cpu-z. Then click on "Memory" and "SPD" at the top, and it will tell you everything you need to know about the type of ram installed.
  14. psmaster72

    psmaster72 Newcomer, in training Topic Starter

    ok the ram is a ddr2 and the motherboard is ASUSTek M2V-TVM
  15. Technochicken

    Technochicken TechSpot Paladin Posts: 903

    What does cpu-z say by "maximum bandwidth" under SPD. There should be a four digit number, like 5300 or 6400, along with a megahertz value. the number tells you which type of ddr2 you have installed, and therefore which type you should get.
  16. psmaster72

    psmaster72 Newcomer, in training Topic Starter

    pc2-4300 (266 mhz) is it just me or are the 1gb ddr2 chips usually like 800mhz?
  17. Technochicken

    Technochicken TechSpot Paladin Posts: 903

    sometimes 800 mhz, but often less. Pc2 4300 can be used interchangeably with pc2 4200. DDR2 ram changes data twice per clock cycle, so the actual clock, which in your case is 266 mhz, is multiplied by two to get the clock speed that you normally would think of, which is 533 mhz. So ddr2 800 actually runs at 400 mhz, but its effective clock is 800 mhz. Here is an example of some ram that would work. http://www.newegg.com/Product/Product.aspx?Item=N82E16820145525
  18. psmaster72

    psmaster72 Newcomer, in training Topic Starter

    im still not sure how many pins it is though
     
  19. Technochicken

    Technochicken TechSpot Paladin Posts: 903

    All ddr2 for desktops has 240 pins.
  20. psmaster72

    psmaster72 Newcomer, in training Topic Starter

    oh thats good to know lol ty for your help i think i have all the info i need now.
  21. Technochicken

    Technochicken TechSpot Paladin Posts: 903

    You're welcome :D
  22. psmaster72

    psmaster72 Newcomer, in training Topic Starter

  23. Technochicken

    Technochicken TechSpot Paladin Posts: 903

    so are you planning to get that to replace your current ram completely? And for getting 2 gigs of ddr2, this would be a much better deal
    http://www.newegg.com/Product/Product.aspx?Item=N82E16820146526
    59$ for 2 gigs of ddr2 667 is a rip off. Any item at newegg, or almost any other computer retailer would be a much better buy.
  24. psmaster72

    psmaster72 Newcomer, in training Topic Starter

    yes id rather completely replace it and im from new zealand so i dont really want to have anything shipped from america and that price over there is about equivilent to the price of the 1s i showed you over here. i was just wondering is hynix a good brand?
  25. Technochicken

    Technochicken TechSpot Paladin Posts: 903

    Sorry, i actually do not really know if hynix is a good memory brand.
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