top is a good one to see the most active processes. ps -aux will give you more info than ps -A.
another place to check is to look in Mandrake Control Center->system->services. you may have services running that you don't know about, don't want, &/or don't need. use the info buttons to see what they are about. just be careful. some are neccessary for the system to function properly.
Last edited by otish1000c; 12-13-2004 at 08:06 AM.