How to upgrade RAM memory in HP EliteBook 8440p laptop - YouTube
HP Elitebook 8440P Laptop Upgrades / Maintenance: 120GB SSD, Windows 7, Arctic MX-4 - YouTube
Solved: hp elitebook 8440p memory upgrade issue - HP Support Community - 2783841
4GB 1X4GB Memory RAM Compatible with HP EliteBook 8440p, 8440w, 8460p DDR3 | eBay
4GB 2X2GB RAM Memory for HP EliteBook 8440p Black Diamond Memory Module DDR3 SO-DIMM 204pin PC3-10600 1333MHz Upgrade System Specific Memory - Newegg.ca