Crucial. This driver (often listed as "ACPI\SNY5001") is required for your Fn hotkeys (brightness, volume) to work.
Restores sound to your internal speakers and headphone jack. sony vaio pcg-61a11u drivers windows 7 64 bits
Usually handled by Intel or Atheros modules. Ethernet (Marvell/Realtek): For wired internet connections. Crucial
* VPCCW21FX. * VPCEH25FM. * VPCEH2C4E. * VPCEB33FM. * VPCF115FM. * VPCEB2C5E. * VPCF136FM. * VPCEG37FM. * VPCS111FM. * VPCEA36FM. Drivers and Software updates for VPCEH25EN | Sony AP sony vaio pcg-61a11u drivers windows 7 64 bits