HP Laptop ProBook AMD Phenom II Dual-Core N620 (2.8GHz) 4GB Memory 320GB HDD ATI Radeon HD 4250 14.0" Windows 7 Professional 64-bit 6455b (WZ309UT#ABA) - Newegg.com
Revamp Your Ride! HP ProBook 6450b on a Budget (RAM & HDD Upgrade) - YouTube
HP ProBook 6450B Laptop Core i5 2.4 GHz 4GB RAM DVD-RW Win 10 Pro