I own a HP CompaqCQ58, using 64-bit Windows operating system, that has 2GB RAM(DDR3) and Intel(R) 1.80GHz. The Laptop often becomes slow and sometimes some apps don't respond when I am multi-tasking. I would like to know if it would be possible for me to upgrade to a net RAM of 8GB RAM by adding a 6GB DDR3 to my open slot