thank you everybody for your input....yes I have a current 64 bit windows system....I am currently waiting for that 8GB worth of DDR3 1333 CP3-10600 chips cause I found out the stock t4500 is a 1333 system...am I right in assuming the stronger 9500 would support the same amount? and is it a 1333 cpu also? or more...I can't find the specs anywhere