how to upgrade ram memory harddisk hdd in acer acer 5733 5733z 5742 5742z 5750 5750z - YouTube
4GB RAM Memory for Acer Aspire 5742-6860 Black Diamond Memory Module DDR3 SO-DIMM 204pin PC3-10600 1333MHz Upgrade System Specific Memory - Newegg.com
How to Upgrade RAM & SSD on Acer Aspire 5742: Quick & Easy DIY Tutorial - YouTube
CMS 8GB (2X4GB) DDR3 8500 1066MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Acer® Aspire 5742-332G32Mnkk, As5552-N833G50Mnkk Ddr3 - A35 at Amazon.com
OFFTEK 4GB Replacement Memory RAM Upgrade for Acer Aspire 5742 (DDR3-10600) Laptop Memory at Amazon.com
Acer Aspire 5742Z Intel Pentium CPU P6100 @ 2.00GHz, 4 GB RAM, 320 GB HDD with Microsoft Windows 10 Professional and Microsoft Office 2010 Home & Business.