Hello Lewis,how are you? thanks for writing to me,every motherboard has limited processor speed and limited space of RAM,for the Inspiron 530 the highest RAM it can take is 4GB ,no more,thats what is the motherboard can take ,any thing more than 4GB the motherboard will read it as 4GB only, I have two RAMS in my pc each one is 1GB ,so, I bought two more RAMS each one is 1GB from ebay because it's cheaper and so I had 4GB, for the processor ,the fastest one that the motherboard can work with is the E8600, its core 2 DUE 3.6 and that's not bad,you can buy it used like I did ,it's cheaper from ebay,if you decided to add a graphic card you need to chang the power supply ,because it's only 300W and you need something like 700W or more,these are the most important thing for you games,wish you the best of luck and if you need to ask about anything ,writ to me I will be happy to answer you.