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How to upgrade memory on Dell Latitude D830 – Inside my laptop
Dell Latitude D830 RAM Replacement - iFixit Repair Guide
CMS 4GB (2X2GB) DDR2 6400 800MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Dell® Latitude D820, D830 Notebook - A39 at Amazon.com
CMS 4GB (1X4GB) DDR2 6400 800MHZ NON ECC SODIMM Memory Ram Upgrade Compatible with Dell® Latitude D830 Notebook - A42 System Specific Memory - Newegg.com
Latitude D830-maximum RAM upgrade - Dell Community