To get the driver you need to make sure the type of vista you are using normal or 64x. There are also other driver for Acer Aspire 1640Motherboard BIOS
Bios Version 3A06
Please see the readme.txt within the .zip file for installation instructions
MS Vista Bios
Flashing the wrong BIOS can cause harm to the system. Acer recommends that you should only upgrade your firmware/drivers if you have been instructed to do so by an Acer Customer Care representative.
By using these firmware/drivers you agree to accept the possibility of product failure.
To get the drivers click here
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