Compy Ram

I'm currently looking into upgrading my macbook memory from 1GB to 4GB. woot. So I went to newegg.com and looked up what's up ... unfortunately there were all these specs for memory and I had no clue about anything so... here we are. Info for when you get around to upgrading your compy.

Buffered/Unbuffered - This is a hardware thing that allows your compy to talk more easily with your memory. Only beneficial/usable for servers when you're running like 10 RAM sticks for 128GB of memory. O_O
CAS Latency - How fast it is. The lower the faster ... on the order of nanoseconds.
ECC - Error correcting code. Another hardware thing, sounds cool but only compatible with servers.
Heat Spreader - Its a sheet of stuff that manufactures add on for dispersing heat better, more surface area I think. The popular belief, however, says that they're useless - possibly trapping heat and making things worse.

So when you get around to buying memory, ends up you want the specs to say "no" and just make sure the MHz is right. Simple enough. done. (and never buy memory from the apple store :-p )