Question about Upgrading a Laptop

Started Oct 13, 2012 | Discussions thread
Jim Cockfield
Forum ProPosts: 14,595
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P.S. 2x4GB kits...
In reply to Jim Cockfield, Oct 13, 2012

Now, manufactures do make 2x4GB of 1.8 Volt PC2-5300 and PC2-6400 SODIMM modules.

You'll see some kits like that here:

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007609%20600006176%20600000401&IsNodeId=1&name=8GB%20%282%20x%204GB%29

But, HP says it limited to 2x2GB total in it's specs:

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01490775&cc=us&destPage=document&lang=en&lc=en&product=3747924&tmp_docname=c01490775

Crucial also says it's limited to 2x2GB on it's page for it:

http://www.crucial.com/store/listparts.aspx?model=Pavilion%20HDX9494NR

And, I could not find anybody that's tried using 2x4GB in your model searching through reviews of laptop memory.

But, HP did have a BIOS update for it dated January 2011.  Get that here (and it should also install OK from Win 7, even though it says Vista, since the underlying kernel is the same with both Vista and Win 7):

http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-91708-1&cc=us&dlc=en&lc=en&os=2100&product=3747924&sw_lang=

So, it's possible the last BIOS update included support for larger 4GB SODIMMs (the BIOS would need to be able to recognize the larger modules).   Sometimes BIOS updates come from the chipset manufacturer that HP and similar vendors are using, and they sometimes include updates to support newer memory modules, CPUs, etc., even though HP may not be aware of everything that the BIOS updates have in them.

The only way to find out for sure if a later BIOS updated added support for larger 4GB SODIMMs would be to update your BIOS to the latest version and try a set of 2x4GB and see it it's recognized (or not).

But, you'd be taking your chances, since it was only designed to use 2GB SODIMMS to begin with, and I have not found anybody that's tried larger 4GB modules in one (and you'd want to try a matched pair of 4GB modules as in one of those 2x4GB kits for a better chance of it working, to find out *if* the last BIOS update included support for larger modules).

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JimC
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