8GB (2X4GB) MEMORY FOR HP ELITEBOOK 2540P 2740P 8440P 8540P 8440W 8540W 8740W 609713501066 | eBay
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HP EliteBook 8540p/2.4GHz i5-M5204GB RAM/128GB SSD/DVDRW-Win10PRO New Battery! | eBay
How to upgrade RAM memory in HP EliteBook 8540w laptop - YouTube
HP EliteBook 8540P 15.6" Standard USED Laptop - Intel Core i5 540M 1st Gen 2.53 GHz 8GB SODIMM DDR3 SATA 2.5" 500GB HDD DVD-RW Windows 10 Pro 64-Bit - Walmart.com
What Is Maximum Ram Supported By Hp EliteBook 8540P Laptop - HP Support Community - 6534769
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CMS 16GB (2X8GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with HP/Compaq® Elitebook 8540P Notebook Sodimm - A13 at Amazon.com
Used HP EliteBook 8540p Laptop i7 Dual-Core 8GB 500GB Win 10 Pro B v.WBA - Walmart.com