memory not recognized

[Bob T.]

I upgraded my memory from 128 mb to 320 mb by replacing
a 64 mb memory chip with a 256 mb memory chip, but
windows xp home only shows 160 mb of "physical memory."
The BIOs recognizes all 320 mb's. How do I get xp to
recognize this new memory?

 

[Bob T]

Thanks very much for your response Peter - I'm going to
try this