Which Type of ram for system

i just kinda need a quick answer here

i have to build up 3 pc systems for a business, and can't decide on the ram issue

I was thinking of going for 1 x Crucial 512 PC2100 but not sure whether i should go with ECC of Non-Parity

I was thinking Non-Parity as it's not going to be a server. What do you guys think ?

Does your motherboard even support ECC memory? I think most motherboards don't. I would just buy non-ecc memory unless you're doing something with your computer that absolutely requires no errors at all.

If its a server, then I think they generally use ECC.. It depends on what MOBO you have.. what mobos do you have for em?

if its not going to be a server then i would get non parity