Memory Type: SDRAM, PC133, SDRAM (non-ECC)
Maximum Memory: 768MB
24MB of memory is allocated for exclusive use by the processors and is not accounted for when the system counts the available DRAM. With 256MB installed the system registers 232MB, 384MB registers 360MB, 512MB registers 488MB, and 768MB registers 744MB.
How much memory your Windows OS will recognize depends on which version of Windows you are running. 32-bit versions of Windows will see (and utilize) only 3GB or 3.5GB. To utilize more memory, install a 64-bit version of your OS. More information about OS memory maximums can be found here.
Memory or DRAM is the "working" memory of the computer. It's used to store data for programs (sequences of instructions) on a temporary basis.
video - installing memory