2GB (2X1GB) Dell OptiPlex GX620 Series RAM Memory DDR2 at Amazon.com
Solved: new graphic card for optiplex gx620 - Dell Community
OFFTEK 1GB Replacement Memory RAM Upgrade for Dell OptiPlex GX620 Series (Desktop Mini-Tower and Small Form Factor) (DDR2-5300 - Non-ECC) Desktop Memory at Amazon.com
Actualizaciones De Memoria RAM Para Dell OptiPlex GX620 Serie (Desktop, Mini-Tower And Small Factor Forma) Ordenador De Sobremesa
Upgrading Ram in the Dell Optiplex Gx620 - YouTube