How To Upgrade Install RAM in HP Notebook 15 series Laptop (HP 15-ay008tx) from ram hp Watch Video - HiFiMov.co
HP HP ProBook 6550b Intel Core i5 M460 CPU @ 2.53GHz, 4GB RAM, 320GB HDD with Microsoft Windows 10 Professional and Microsoft Office 2010 Home & Business.
Solved: HP Delphi D40/Probook 6550B - HP Support Community - 8632576