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HP EliteBook 8540P 15.6 Laptop PC, Intel Core i5-520M up to 2.93GHz, 4G DDR3, 320G, DVDRW, WiFi, VGA, DP, Windows 10 Pro 64 Bit Multi-Language Support English/French/Spanish(Renewed) : Electronics - Amazon.com
HP Elitebook 8540p
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HP EliteBook 8540P RAM Upgrade Installation instructions with 2nd RAM under keyboard - YouTube
Hp Elitebook 8540p Laptop Computer-intel Core I5 2.67ghz-4gb Ram-500gb Hard Drive-dvdrw-win7 Pro 64bit-536 : Electronics - Amazon.com
HP EliteBook 8540p - Notebookcheck.net External Reviews
HP EliteBook 8540p 8540w Motherboard KAQ00 LA-4951P 595765-001 - Notebookparts.com
Amazon.com: HP EliteBook 8540P 15.6 Laptop PC, Intel Core i5-520M up to 2.93GHz, 4G DDR3, 320G, DVDRW, WiFi, VGA, DP, Windows 10 Pro 64 Bit Multi-Language Support English/French/Spanish(Renewed) : Electronics