Upgrading Memory RAM in HP 840 G1 EliteBook, 840 G2 or 840 G3 - YouTube
Memory for a HP/HPE - EliteBook 840 G1 - Kingston Technology
Memory RAM Upgrade for HP EliteBook 840 G1 4GB/8GB DDR3 SODIMM | eBay
A-Tech 8GB Module for HP EliteBook 840 G1 Laptop & Notebook Compatible DDR3/DDR3L PC3-14900 1866Mhz Memory Ram (ATMS266381B30845X1) at Amazon.com
HP Elitebook 840 G1 Intel Core i5-4300U 1.9GHZ 8GB RAM NO HD NO CADDIE | eBay
Memory RAM 8GB HP - EliteBook 840 G1 1600MHz SO-DIMM ESUS IT
HP Elitebook 840 G1 Heatsink and Fan Replacement - iFixit Repair Guide
HP EliteBook 840G1 Laptop Computer, 1.60 GHz Intel i5 Dual Core Gen 4, 16GB DDR3 RAM, 500GB Hard Disk Drive (HDD) SATA Hard Drive, Windows 10 Home 64Bit, 14" Screen (Used) - Walmart.com
Memory RAM Upgrade for HP EliteBook 840 G1 4GB/8GB DDR3 SODIMM | eBay
HP Elitebook 840 G1 RAM Replacement - iFixit Repair Guide
Confused - Elitebook 840 G1 and the SSD m.2 slot 42mm - SAT... - Page 2 - HP Support Community - 5085271
Factory Original 16GB (2x8GB) Compatible for HP Elitebook, EliteOne, Pavilion, Probook, ZBook DDR3L 1600Mhz PC3L-12800 SODIMM 2Rx8 CL11 1.35v Notebook Laptop Memory Upgrade RAM P/N: 693374 Adamanta at Amazon.com
4GB Memory for HP EliteBook 820 G1, 820 G2, 840 G1, 840 G2, 850 G1, 850 G2 RAM | eBay