Do a little reserch on your card and see what other people around here are getting there cards up to.most important thing about overclocking is to increase a little at a time,go play some games or what ever the case might be then go a little more and so on.ati tool and radlink should get you started.but like i said do some reading first,good luck on that oc.oh ya and always watch your temps,very impotant.