I apologize if this old hat to people but here goes - I am running a AthlonXP 1800+ processor on this MB. I also have installed - one 512MB 2100 memory chip. I wonder if anyone knows if: 1. I can do something so as to run a Thoroughbred 133/266MHz FSB AthlonXP 2600+ chip. 2. I can install another 512MB PC-3200 or PC-2700 SDRAM memory chip.