Use this guide to upgrade the RAM in your 2007 17" iMac to a maximum of 2GB (1GB x2)
iMac 2007 17" RAM Upgrade Guide (iMac4,1 / iMac5,1 / iMac5,2)
Use this guide to upgrade the RAM in your 2007 17" iMac to a maximum of 2GB (1GB x2)