There is a limit in the number of physical slots on your motherboard and a limit of what the bios can manage. But remember, 8GB of RAM and a 1.5 GHz processor is not necessarily faster even with 16GB RAM. Having a balance of processor speed an RAM is the way to go.
Maximum amount of memory that can be installed and type of connectors that will be on the motherboard
It depends on the motherboard. If you can find out what type of motherboard you have, you can look up what type of memory and how much of it you can install into the memory banks. Keep in mind that the operating system that you have may limit how much of the installed memory you can actually use.
The maximum amount of RAM supported by a computer depends on the processor and the motherboard.
It support maximum of 4 GB RAM
The Intel D845GLLY motherboard supports a maximum of 2GB of PC133 SDRAM, using two 1 GB modules.
RAM and the memory cache
The Gigabyte GA-EP45-UD3P motherboard supports a maximum of 16 GB of RAM, using four 4 GB modules of DDR2 RAM.
The processor size or speed does not determine how much RAM your system needs. Generally speaking, the newer the system, the more RAM you can add. The amount of RAM slots on a motherboard and the motherboard's own subsystem (the BIOS) will determine how much RAM you can add to a particular motherboard.
It's either 4 or 8GB. The amount of supported memory depends rather on type of chipset you have.
Different microprocessor can address different amounts of memory. The motherboard design should allow for maximising the physical memory to what the microprocessor can address
You need to look at the motherboard and see if there are any spare memory slots. You also need to check the maximum amount of memory that the motherboard can handle.
The MSI MS-7082 supports a maximum of 2 GB of RAM, using DDR400 modules in 2 slots (1 GB per slot).