Q: Is this alright when installing RD RAM (rambus)?
My computer excepts pc600 and pc800 RDRAM and it came with 128 mb of ram just when i bought it. im thinking of either throwing in two 256mb (2x128) or go for the 512mb(2x256). Is installing RD RAM of this type possible?
The amount of MB of RAM you add doesn't really matter. The only thing you need to consider is what your motherboard can handle. Most are fine up to 2 GB of RAM, and since you're using Rambus memory (RD), you're motherboard is probably relatively new.
As you probably know, you must add 2 sticks of Rambus memory at a time. Personally, it depends on what you want to do with the machine and what your budget is.
The computer I'm working on now has 512 MB of DDR RAM, but which is fairly cheaper than RD RAM. Personally, I would go for the 512 MB if you can afford it because chances are you'll never need any more RAM on that machine in the future. I know I won't with that amount currently in mine.
Check out these pages for more information on computer ram memory:
Learn about types of RAM
How to install RAM