Will adding this RAM help or hurt me?
 

I just bought a new comp that is a X2 5600 running Vista with 2GB DDR2 SDRAM at 667MHz. I have an older computer that has 2 512 sticks of Kingmax 512 DDR-400 IC:32Mbx8 that I could pull out and use. Would putting this in slow down all the RAM overall to the slower clock speed or would it not make a huge difference. Or would the additional 1Gig of RAM make up for any other differences? Thanks for the help!

Seriously - why? 2gb is fine. You're just asking for memory troubles.

I play Everquest2 quite a bit and was curious about trying to 2 box two accounts on one computer and I know it is a memory hog. I was thinking that since I had the extra RAM laying about, it might make a difference. However, it would probably help more to get rid of all the flashy graphical effects that Vista uses.

Haha, well, all of that crap aside, you can't put DDR into a DDR2 slot. So you won't be able to upgrade using that particular RAM, end of story.

Would a memory upgrade help? Probably if you're using Vista. Is it worth buying? Probably not so much.

It won't work. It won't fit, and it wouldn't work if it would fit.

DDR != DDR2

If it's any consolation, DDR2 memory is cheaper than DDR.

Ok, appreciate the help!

Don't buy more than 1 GB though. 32-bit OSs won't use more than that.

Vista is supposed to support more than 3 gig, it wasn't really the 32 bit issue but the memory controller that XP used. . . there's a way to force an override but I haven't played with it

Vista 64-bit supports more than 3 GB. Vista 32-bit doesn't. Has nothing to do with XP, it has to do with 32-bit OSs.