Oh, I see.

Should I install that 256MB one?

and I don't have a CD for the graphic card, I got it from my brothers friend. He gave me a whole comp without a harddrive, I just recently took the 512MB RAM memory out of it and placed it in my comp.

 

I don't think I will install the graphics card as it's too much trouble and my computer is around 6 years old.

 

I just installed both of the rams, and they seem compatible.

512MB Ram Memory: 512MB UNB PC2100 CL2.5, The model is Apacer.
256MB Ram Memory: DDR 256MB PC2100 orig, 256MB PC2100 DDR266, DDR266(2.5) 256MX8, The model is A Data - Memory Expert

I'm not sure, but I guess they are the same type because they are both PC2100 and they are both 2.5Mhz(?)

It said different things on the 256MB one, so I wrote everything.

 

Kay, thanks for the help guys!

 

It really doesn't matter what brand RAM as long it fits and is the right pin type. The PC# appears to be different so I don't think it will work(Not sure about this). You can mix RAM, but it is most recommended to get both of the same size. If you buy the same RAM sticks that are compatable/say they are dual channel compatable, you can use Dual channel, but I really don't know what that does or what the advantages are. Though I have been hearing Crucial is a good brand. I think I'm using a Samsung 512 MB with a Patriot 2 GB both at 533 MHZ.

 

Oh really? I never really knew that, but I'll make sure to be careful of that. I did a lot of research before buying my RAM though so I didn't run into any trouble. Probably just best to buy them in pairs or memorize the last RAM stick you bought so you can match it up. Both of mine are the same speeds so it's perfectly fine over here. I'll probably buy a another 2 GB if I ever need it to replace the last 512 MB I have. BTW, what is the PC# for...? Is it speed, or does it even affect is physically?

 

So they will not work together?

 

I see, thanks for the help once again!