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starl

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VRAM upgrade

Have an STB Nitro 3D that I want to upgrade the memory on. Contacted STB, they no longer sell the upgrade, but service rep said the memory was 256x256. I looked around to find something, but my knowledge on types of video memory is practically non-existant. Can anyone point me to _exactly_ what I need? I've searched computer shopper and other on-line stores but since I don't really understand what I need...
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mklp
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starl

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ok - you made me laugh :-) I do love the answer, but I'm gonna hold on a bit longer. The STB guy I talked to gave me a little hope. I'm hoping someone out there knows a good site that sells a variety of memory - and knows what 256x256 means.
starl,
   OK I'm defeated. Well almost. Had I realized that 256X256 was a main point of confusion I would have gone into some more detail as I've known it for years. Once you learn this you will see that you need a much more specific definition from STB on the dimensions he gave you. Specifically you will need to know how the "width" dimension is formed. Is it after the upgrade or before?
    Follow this link: http://www.pcguide.com/ref/video/mem.htm

    I encourage you to go to the home page once you get there and follow links to the explaination of plain old RAM dimensions. Follow this link directly: http://www.pcguide.com/ref/ram/pack.htm 

     Once you learn what 8X64 on a 168 pin SDRAM means you will know what to ask STB and understand how RAM dimensions work. You will also see why I'm giving you links to a very good explaination instead of typing it out. I hate blisters.:) When you do the math on this card you will see why you need more info. Please post a note as to the ultimate dimensions of this card so maybe someone else can benefit from it. As for myself, I'm going to buy a 4MB PCI for the 24.95 and not pay shipping.
hope this helps some more,
mklp