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Ram Density


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#1 Paul22

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Posted 04 May 2007 - 09:37 PM

I purchased 1 GB of RAM to add to the 512 MB pre-installed on my computer (Compaq SR2150NX) using the crucial.com tool to help me select what I needed. The new stick works great, the only problem being that now the old 512 MB no longer works, though it will work if I remove the new 1 GB stick. After talking to Crucial, they tell me it is a RAM density problem, which is something I know nothing of.

The chip I purchased is the CT12864AA667.8fe

Basically, then, my questions are, does anyone know about this problem, how do I determine what density I have on my pre-installed chip, and is there anyway to get the two to work together?

Thank you,

Paul

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#2 garmanma

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Posted 04 May 2007 - 10:07 PM

The one thing I noticed was when I used their memory selector to look it up, instead of
CT12864AA667.8fe. it recomended
CT650134
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why won't my laptop work?

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#3 Paul22

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Posted 04 May 2007 - 10:29 PM

I noticed that too, but not until after I purchased it. I'm not sure what the differences are as all of the specs seem to be the same.

The recommended stick:

# Module Size: 1GB
# Package: 240-pin DIMM
# Feature: DDR2 PC2-5300
# Specs: DDR2 PC2-5300 • CL=5 • UNBUFFERED • NON-ECC • DDR2-667 • 1.8V • 128Meg x 64

The one I purchased:

# Module Size: 1GB
# Package: 240-pin DIMM
# Feature: DDR2 PC2-5300
# Specs: DDR2 PC2-5300 • CL=5 • UNBUFFERED • NON-ECC • DDR2-667 • 1.8V • 128Meg x 64

Edited by Paul22, 04 May 2007 - 10:45 PM.





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