i need help,i got a xps1640 T9600 2.8G HD4670 4gig ddr3 ram

i wanna oc my gpu but all the progrmas suggested giv the same responce,either cant set clock speed or enter program too laggy,is there anything i need to do b4 i oc?

can i oc my processor? if so by how much?

i m using zalman nc2000 to cool my laptop tats all,thanks sifus out there

i hav rivatuner,AMD GPU clock tool,techpowerup gpu clock tool installed and none of it works...