http://support.acer.com/us/en/product/default.aspx?tab=1&modelId=715
Here is the Acer download site for your model.
Note there is also a 5230 E. Check if this is yours.
I think you'll need the Chipset Download. Pick the newest one.
If in doubt, there is a Hardware Detection utility available at top of the page.
Download and install it for automatic driver support.
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