A-Tech 8GB Module for HP EliteBook 8540w Mobile Workstation (Quad Core Processors) Laptop & Notebook Compatible DDR3/DDR3L PC3-12800 1600Mhz Memory Ram (ATMS266664B12351X1) at Amazon.com
HP EliteBook - 8540p i5 540M, 4GB DDR3, 250GB HDD, WIN7 Home 15.6" Widescreen, DVD-RW, NVIDIA 1600x900 With A/C Adapter
NOKOTION 595765-001 604538-001 KAQ00 LA-4951P For HP Elitebook 8540W 8540P Laptop Motherboard DDR3 QM57 with graphics slot - AliExpress
HP EliteBook 8540p Laptop Memory/RAM & SSD Upgrades | Kingston
HP EliteBook Mobile Workstation 8540w review: HP EliteBook Mobile Workstation 8540w - CNET
CMS 16GB (2X8GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with HP/Compaq® Elitebook 8540P Notebook Sodimm - A13 at Amazon.com
CMS 16GB (2X8GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with HP/Compaq® Elitebook 8540P Notebook Sodimm - A13 at Amazon.com
Nokotion Kaq00 La-4951p 595764-001 Laptop Motherboard For Hp Elitebook 8540p 8540w Ddr3 With Graphics Slot Not Support I7 - Laptop Motherboard - AliExpress
Quickspecs HP EliteBook 8540p Notebook PC
HP EliteBook 8540P DDR3 12800Mhz SO-Dimm Laptop Ram in Pakistan – Laptop Spares
4GB DDR3L-1600 (PC3-12800) SODIMM Memory RAM for HP EliteBook 8540w Mobile Workstation (Quad Core