RAM question

[vdubVR6]

got a question for you guess i went online to buy some ram and i came across a few things i never really though of when it comes to ram

1. Unregistered/Registered?
2. Unbuffed/Buffed?
3. Gold LEADS?
4. High Density?
5. And the numbers that are 32x4, they range from diffrent RAM.


what are these things suppose to mean i don't want to buy the wrong RAM for my system i just want normal pc133 ram does any of this really effect anything? thx

 

[Bootsy]

advice:
go to www.crucial.com
then pick your motherboard and it will show you the types of ram that are compatible with it. Very good ram, afforable and complient

 

[vdubVR6]

thx for the reply Bootsy, but do you know what Unbuffered Non-parity means? or the other terms i posted? i would like to know the terms for future know-how.


edit: actually i got the answers to 1 and 2 but not sure about the others.