I want to give my computer more RAM. Inside the case of my desktop computer there is 4 slots for RAM. Two slots are yellow and two are blue. They are labeled "DIMM1 DIMM2 DIMM3 DIMM4". DIMM1 is occupied by "Samsung 1GB 1Rx8 PC2-5300V-555-12-ZZ".
I understand that operating systems have a maximum amount of RAM that they can use.
Regardless, Can I upgrade my system to 8GB of RAM?
Furthermore, Is there anything else that I should understand when buying RAM?
For example, Could I use four 2GB sticks, and are there any sizes/speeds that I would need to match up to find RAM compatible with my computer?
I don't know if the color of these slots has any significance.