Hi, Dell Optiplex GX110 Desktop Memory Upgrade Currently: 2x 64MB memory modules giving 128 MB RAM Intel P3 600 MHz processor There are two memory slots on this motherboard, Q1. Can I insert one 256 MB module into slot 1 and leave slot 2 empty or do both slots need to be filled? Q2. Could I fit 256 MB into slot 1 and a 64 MB into slot 2? Thanks for any help.