Can a Sony VAIO PCV-RX550 handle two 512mb memory cards?

A friend has a 10 year old Sony and would like to load Windows 7 (currently XP).  Windows 7 needs 1gb of memory.  Can they put two 512mb memory boards?  Sony says no but we want to know what the experts say.  Thanks.
StoneCutter3Asked:
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_Commented:
As far as I can tell, 512MB max is the limit.

For what it is worth though, I have W7 running on an old Athlon 1333 (socketA) with 512MB of PC-133 ram, and onboard video.
I can't do any "heavy lifting" with it (W7 takes about 256MB), but it works fine for browsing and general "lite" work loads.
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nobusCommented:
on this page, they say it's limited to 512 MB  http://www.docs.sony.com/release/specs/PCVRX550_mksp.pdf
but you can try if a 512 MB stick is recognised, and runs with memtest :   www.memtest.org.
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_Commented:
Thank you much.    : )
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nobusCommented:
i would like to know if a 512 Mb one was tried - and worked?
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