That being said, I really recommend against it. DDR2 has been dead ended for a long while now. That computer you are using has had a wonderful life, and it still works pretty good today. Throwing another $50-80 at it, I'm skeptical that it will help out that much. And it won't increase the value or life of the computer.
I am building an i5 gaming rig, but this system can still run games really well even at 1080p, its not broken and the upgraded ram will definitely help, so Im going to keep it running.
How do you know that more memory will help? Are you playing some particular game where the memory in use goes over 4 GB for your system, or at least comes very near to it?
Memory is a situation of, if you have enough, more won't help, but if you don't have enough, very bad things happen. So don't buy more memory just to buy it, unless perhaps it's a newer system that you know you're going to keep for a long time and suspect that more will be helpful eventually.
Yes I play a few games where my CPU and GPU can handle the game, but my RAM gets taxed. Playing games with large open worlds that are memory hungry.
If it's not a 64-bit game--and there are very few 64-bit games--then the game's memory usage is capped at 2 GB. One of the rules of 32-bit programs is that a 32-bit process cannot use more than 2 GB of memory. Unless you're doing other stuff at the same time to also use more than 2 GB, that usually means 4 GB of system memory leaves you plenty of space.
In which particular games are you running out of memory? How much system memory is in use for those games in total, and how much is used by the game itself? This is easy to check in Task Manager. You don't have to guess if you have enough memory; it's easy to measure directly.
They are 64bit games, H1Z1 for one.
That a game is a 64-bit game doesn't automatically mean that it uses more than 2 GB of system memory. Open up Task Manager while you're playing games and check on actual numbers, both of what the game in question is using and for your system in total. Don't just try to guess that maybe you need more memory because of no real reason in particular.
The game engine leaks memory like crazy, after about hour it's gonna use ~2.7GB ram, after that it goes all the way up to 4GB
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...apparently not so much obvious.
You can buy 2 more DDR2 modules and upgrade the RAM if you really want to... for example, Newegg has 45 SKUs of 2x2G DDR2 kits available right now
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&IsNodeId=1&N=100007611 600006042 600006066
Pretty much any of those ~would~ work.
That being said, I really recommend against it. DDR2 has been dead ended for a long while now. That computer you are using has had a wonderful life, and it still works pretty good today. Throwing another $50-80 at it, I'm skeptical that it will help out that much. And it won't increase the value or life of the computer.
The game engine leaks memory like crazy, after about hour it's gonna use ~2.7GB ram, after that it goes all the way up to 4GB