AAO 522 C5DKK

Discussion in 'Laptop Hardware' started by andyfen, Nov 18, 2011.

  1. andyfen

    andyfen

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    Hi, Could someone please explain why I cannot upgrade to 4GB if I install win 64 bit?

    This one has AMD C50 dual core cpu

    Thanks
     
    andyfen, Nov 18, 2011
    #1
  2. andyfen

    Hugh

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    This is my first post. Apologies if I'm saying something dumb.

    Why do you think that 64-bit Windows would not support 4GiB?

    My AMD-C50-based ao522 hardware can certainly handle 4GiB RAM; I have no reason to think that it can handle more.

    Windows 7 Starter can only use 2GiB of it -- that's an intentional restriction to encourage you to buy an upgrade. No problem, I upgraded to Linux.
    Most 32-bit versions of Windows can only support 3.x GiB of RAM (the exceptions are mostly expensive server editions).
    64-bit versions of Windows can support 4GiB and more. I don't think that there is a 64-bit Starter, but if there were, it might have a silly limit.
    32-bit versions of Linux generally allow you to install PAE-enabled kernels, thus supporting 4GiB and more.
    64-bit versions of Linux run on the C50 and certainly support 4GiB and more.

    There are unauthorized hacks to turn a Win 7 Starter into something that thinks it is a normal Win7 and thus uses 3.x GiB of RAM. IMHO that is a kind of piracy.

    There are quirks with Linux (Ubuntu 11.10 and Fedora 16)j on my ao522 with C-50. The main trick is: enable PXE booting in the BIOS (but don't have a PXE server so it doesn't actually do a PXE boot) so that the ethernet interface is initialized before booting; otherwise the wireless driver will crash the system.
     
    Hugh, Jan 31, 2012
    #2
  3. andyfen

    andyfen

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    I just went for it and ordered 4GB.

    Very tricky fitting it - even with the various YouTube videos and forum posts!

    However the AAO 522 works great with 4 GB - despite Acer CS saying categorically that the motherboard will only support 2 GB!

    What do they know?????
     
    andyfen, Jan 31, 2012
    #3
  4. andyfen

    something back

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    something back, Jan 31, 2012
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  5. andyfen

    andyfen

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    The Manual's instruction for removing the keyboard is totally inadequate. IMHO No-one would be able to do this without causing damage!!!

    As I said "Very tricky fitting it - even with the various YouTube videos and forum posts!"
     
    andyfen, Jan 31, 2012
    #5
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