Aspire 1710 desktop replacement Dual core?

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I have a acer aspire 1710.  I wanted to know if it is possible to
change my ht-Pentium 4 mobile processor to a Dual-core?

I would also like to know if its possible to change my graphics card
to a desktop graphics card because it is a desktop replacement.  My
reason that I say this is because I had it fixed by a professional and
he told me he could "drop a 500gig hard drive in there."

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