I'm 100% sure that you have a FSB setting in your BIOS
....but maybe not really called "FSB setting". Try something else like"CPU CLOCK=133 MHZ" or "CPU SPEED=133 MHZ".......the current FSB on your 1600+ is 133 mhz(stock)...you could get to max FSB 150....---->1600MHZ with some luck. I overclocked my ex 2400+ from 2.0 ghz(stock speed) up to 2.3 ghz with an ArcticFreezer cooler....It took a whole day to overcklock the Athlon XP....but tests showed no improvements. So, don't try to overclock it....your systemcloud easely freeze and you may have to reset the BIOS...that is not really nice......If u want better performance try to purchase a better CPU on your 462 socket(A) like AMD Barton 2600+. My advice, get a new system. You don't really have to buy a whole PC
. You have a monitor, a case, kb, mouse, hdd, cd-dvd....u only have to change the MoBo, CPU and memory...that' only 140-->160 $ or 100-110 EURO's