Dell Latitude D820 Motherboard Replacement - iFixit Repair Guide
4GB (2x2GB) Memory RAM Upgrade Compatible with Dell Latitude D820 Notebook | eBay
CMS 2GB (1X2GB) DDR2 5300 667MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Dell® Latitude D820 Notebook Ddr2 - A38 at Amazon.com
OFFTEK 1GB Replacement Memory RAM Upgrade for Dell Latitude D820 (DDR2-4200) Laptop Memory: Amazon.co.uk: Computers & Accessories
Dell Latitude D820 - Review 2010 - PCMag UK
Grade A Dell Latitude D820 15.4" Widescreen used Standard Laptop - Intel Core 2 Duo T7200 2.00GHz, 4GB RAM, SATA 2.5" 80GB HDD, None, Windows 10 Home 64-Bit - Walmart.com