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I bought the wrong kind of memory... what's the right kind?

Discussion in 'Hardware' started by lipstud, Jun 29, 2007.

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  1. lipstud

    lipstud Thread Starter

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    Hi everybody, got some troubles

    My old memory, Kingston 1GB PC3200 CL3 148-Pin DIMM Kit (512x2) fits and works perfectly, but I just bought a 2GB kit: Crucial 2GB 240-Pin DIMM PC4200 UNBUFF

    The problem is (you've probably worked it out by looking at the mem specs) is that the slot on the new memory doesnt match up with the bar going accross my memory bank.

    Which part of the memory specifications defines where abouts the slot is on the actual memory module is?

    My motherboard is a GA-7S741M

    Soz if im not very good at explaining,

    can anyone help?
     
  2. CrazyComputerMan

    CrazyComputerMan

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  3. lipstud

    lipstud Thread Starter

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    Hi CrazyComputerGuy, thanks for your reply

    I cant do that scan right now because the computer i bought the memory isn't currently connected to the internet, instead I did the memory advisor tool and the closest I could get was Acer Aspire T120

    The problem may be that my model is the T120E, do you think the E would make much difference?
     
  4. win2kpro

    win2kpro

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    From what I could see apparently the Gigabyte GA-7S741M motherboard is a proprietary motherboard built for the Acer model 120E.

    You stated the machine had 1GB. of PC3200. PC3200 memory is 184 pin, NOT 148 pin. PC3200 memory would have been DDR. You purchased PC4200 which is DDR2, 240 pin.

    As you now know, 240 pin DDR2 modules will not fit in 184 pin DDR slots. You need to check your owners manual to verify how much memory your board will support and buy the type memory supported by the machine.

    The GA-7S741M is not listed at the Gigabyte site, so you will need to get the information (if you don't have it) from Acer if indeed the machine is an Acer 120E.
     
  5. win2kpro

    win2kpro

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    Sorry, I was typing when you were posting.
     
  6. CrazyComputerMan

    CrazyComputerMan

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    I'll think of a solution
     
  7. lipstud

    lipstud Thread Starter

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    So if I understand you right, win2kpro, I have to make sure that the memory I buy is DDR (184) and not DDR2 (240)?

    What about the PC-****, is that important or can I use a different 'type'?
     
  8. win2kpro

    win2kpro

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    If you are adding memory you should use the same speed that is currently installed.

    The first thing you need to do is determine how much memory the board will support.
     
  9. lipstud

    lipstud Thread Starter

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    Well I've used both the Crucial memory advisor, and the Kingston one.

    They both report that I can have up to 2GB maximum split across my 2 memory slots.

    I'm guessing something like this would be perfect right? http://www.ebuyer.com/UK/product/92005
     
  10. crjdriver

    crjdriver Moderator

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    That is the type of memory you need however I would really go with a name brand of memory; kingston, crucial, or corsair. The memory you linked to does not even have a brand name or specs.

    On the bottom of your link, it shows kingston for $5 more; get the name brand stuff.
     
  11. bigbear

    bigbear

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    It is pointless buying faster memory than the mobo can support, you are just wasting your money.
    Have you run the Crucial scan? that will tell you exactly what memory you need
    Ahhh toooooooo slow posting
     
  12. bigbear

    bigbear

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  13. lipstud

    lipstud Thread Starter

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    Thanks guys, I'll keep you lot posted about my memory 'kerfuffle' (I cant afford another set just yet :eek: so itll probably be a while)

    [Edit] Cheers bigbear, is that site safe enough then?
     
  14. win2kpro

    win2kpro

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    Damn, Acer really had the manual hidden, but I finally found it.

    http://csd.acer.com.tw/acer/URMUL1.NSF/1af87a750eeeb70f0825628f006e0bfc/144bc27c5c4139cb48256ef200336a92/$FILE/Aspire_T120E_Eng.pdf

    According to page 7 (PDF page 7) the board supports up to 2GB. of DDR 266/333 RAM. DDR 266 is PC2100 and DDR333 is PC2700.

    Your best performance would be to buy two 1GB. sticks of PC2700.

    2 sticks of this would work;

    http://www.newegg.com/Product/Product.aspx?Item=N82E16820145086

    This kit of 2X1GB. from Kingston would work.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16820134177

    For the little bit of difference in price, I would go with the Crucial.
     
  15. win2kpro

    win2kpro

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