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dual 64bit processing

Hi all,

any recommendations on the Processor and Motherboard if i had wanted to build a system with dual 64bit processors and a mother board which is stable and supports with lotsa PCI available?
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eturfclub: you should specify a bit more what you intend to use this computer for. Shall it become a server, for heavy workload, where noise is of no concern, or do you want to have your private PC run on 64 bit? Then the eternal question is whether to use Intel cpu or AMD ones. Both have advantages and disadvantages, while for general use the AMD can be recommended in many cases. Both low price and the speed-step function as well as the cool'n quiet implementation help you to keep it a bit less noisy and save energy.

Let us assume you want to have an AMD, then Tyan is a high-class mainboard manufacturer. There are others which might suit your needs as well, however if you want to have the max out of your system, Tyan can be recommended. Otherwise I would stroll around such websites like anandtech.com  and tomshardware.com and read the different tests and see what will fit best to your needs or desires.

Sorry for not giving you a more precise answer, maybe it brings you a step ahead.

Are we talking real 2 processor computing like this ?


Or are we talking dual core CPU's ?
The first thing I should note is the days of motherboards with copious amounts of  expansion slots are long gone out side of server boards, and most of them have PCIX and high speed 64 bit PCI expansion slots, which are not compatible with a lot of standard 32 bit PCI cards. I know how hard it is these days to find a motherboard with a lot of PCI slots, as I needed one last year that had to have 5 slots for video capture cards for a server to record from our surveillance cameras at work, and my choices were few.  

Ever since motherboards started to incorporate onboard IO controllers slot counts have been dropping, and today in most cases anything more than a few slots really are unnecessary in most cases. With PCIe out now finding boards with lots of standard PCI slots is even going to get harder, and in a year you will be lucky to find a board with more than 3. At the same time, a lot of things you traditionally plugged into PCI slots are now available via USB and fire wire, so the need for a lot of expansion slots is probably going to diminish to the point none in a lot of future computers.  

Since you want a board with a lot of slots, and I suspect that you want this for home use, I’d go with the Tyan S2875 which supports AMD Opteron processors. Performance wise a Xeon system is quite competitive, but unless you have a high noise tolerance level like I do the fans on it will drive you nuts. Even I am getting tired of listening to the fans on the one I have, and it’s an older Xeon system which takes a lot less to cool than the current generation of Xeon’s which dissipate about 100 watts of heat per CPU. Heat dissipation issues have gotten so bad that Intel has started added speed step functions to the latest Xeon’s, but they still make a ton more heat than AMD’s, and unless Intel comes up with something real soon next duel processor system I build with be AMD based.    

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