Or he is saying I have 8Gb of memory installed, but i am running a 32bit OS that can only see 3.25 Gb of ram, by the time windows loads its close to 2.00Gb, and if i am using a on board graphics solution that will take at least 256Mb of system memory.
The solution if the case, go into the bios and enable memory mapping.
Install a 64bit operating system because it can use and see more, 32bit is limited to seeing and using 3.25Gb of memory only.