What are yor system specs? The 4gb is the maximum amount that the computers motherboard can support ( hardware) but a 32bit opersting system (software) can support a max of al ittle over 3gb...
okay, my system specs are the following:
motherboard: MSI MS-7525
processor: E7400 oced to 3.3Ghz
RAM: 4 gigs
GPU: xfx 9800 gt 512mb OC 700/1050
PSU: tx650w corsair