Sony Laptop help

Hi,



I just replaced the HDD in my niece's Sony VAIO PCG-71211L.

Sony support does not recognize my model number.

Device manager tells me that I need drivers for. Other devices--Base system device,Ethernet controller and PCI Simple Communications Controller.



Any suggestions as to where I can find these drivers?



Please Help.



Thanks,



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References:https://forum.pcmech.com/forums/





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