I'm currently running an Athlon XP AMD, and have an Asus motherboard. I forget what AMD chip i have... All I know is that it's 1.67 ghz. I'm also running two 512MB DDR memory. Both are generic, and they aren't any big name brand. I do the basic maintenance every couple of months that includes, cleaning the dust out of my computer, defragmenting my computer, and doing disk cleanups etc. What signs or troubleshooting tasks to see why my computer is slowing down all of a sudden? I'm thinking it could be the RAM, or the CPU. What do you think?