Amazon.com: Valley Of The Sun New Graphics Video Card Replacement, for Lenovo IdeaCentre B500 B505 B50R1 All-in-One Desktop PC Computer, NVIDIA GeForce GT 540M GDDR5 2GB N12P-GS-A1, MXM VGA Board Repair Parts :
ASUS Laptop Intel Core i7 2nd Gen 2670QM (2.20GHz) 6GB Memory 750GB HDD NVIDIA GeForce GT 540M 15.6" Windows 7 Home Premium 64-Bit N53SV-DH72 - Newegg.com
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Amazon.com: Valley Of The Sun New Graphics Video Card Replacement, for Lenovo IdeaCentre B500 B505 B50R1 All-in-One Desktop PC Computer, NVIDIA GeForce GT 540M GDDR5 2GB N12P-GS-A1, MXM VGA Board Repair Parts :
GT540M GT 540M 2G N12P-GS-A1 MXM VGA Video Graphics Card for HP Envy 23 Omni 220/27 Touchsmart 420/520 - AliExpress