Help for server composition

Hello, and welcome to THG.

For more bang for your buck, Opteron by AMD. These processors are reliable and fairly inexpensive.

Just a word of advice, if reliablilty is a concern, you may want to look at a used mainstream server like a slightly older Dell. By the time you add things like dual power supplies and hotswap you will end up spending as much or more to build it. Staying standard will also mean a lot more available documentation on issues should you have any as well as available spare parts.