On 7/22/2010 3:25 AM, John Doe wrote: > > I have a 4GB pc and was wondering if it was worth going the PAE way to gain > those exta 700MB... Very few programs can use PAE to get at that extra RAM. Can the programs you run do this? Is your CPU 64-bit capable? That's generally a better idea than PAE. Keep in mind that PAE is Pentium Pro era technology.