Unix-PC memory upgrades

[John Sasinowski]

	I know that the Unix PC's motherboard contains 72 64K DRAM's
(which give it 512K memory).  I have several questions:

	1.  Can the 64K DRAMs be pulled out and replaced with 256K
	    DRAMs (thereby putting 2Mb on the motherboard) ?

	2.  If the above upgrade is possible, what modifications to
	    the system software is necissary for the computer to
	    recognize the added memory?   Will it interfere with the
	    expansion ram?

	3.  Can you add chips to the 512K ram card to give it a full 
	    2Mb?

	4.  Are there any difficulties with the above modifications
	    (eg, desoldering parts of the motherboard, adding jumper
	    wires, etc.?

Thank you in advance.

John Sasinowski
c60b-dk at buddy.berkeley.edu.arpa