What's the purpose of a Dual Socket Mobo?

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While looking at motherboards on the web I ran across these Dual
Socket ones.  I looked on wikipedia and it said a computer with two
CPUs.  That's sort of what I expected, but what's the purpose of two?
Do they multiply the power?  For example, if I installed two 1000mhz
CPUs would I now have 2000mhz, or would it just double the power or
the speed, or what?  Are both CPUs working at the same time, or do
they take turns?  I guess I dont really understand the purpose of two.

Also, does this mean that twice the power supply current and twice the
memory are needed too?


Re: What's the purpose of a Dual Socket Mobo?

On 18 May, 00:40, scottt...@noemail.com wrote:
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 let's see, sometimes,no,sometimes,and lastly, yes to the first part
and no to the second part.

ok, before dual and quad core cpu's hit the market, servers and some
high end workstations, used symmetrical multiprocessing or more than 1
cpu to get better performance, but just as today, the software needed
to be written so as to take advantage of the extra procs, you would
need VRM's or voltage regulator modules, for each cpu. they could
share system memory, or in high end servers, each cpu could be given
it's own memory.  In your example, therefor you would actually see 2
separate cpu's at 1000Mhz, not 1 at 2000Mhz. Today, Intel has a quad
core cpu, or multiple cores in one package, and you can get a xeon in
quad core, with multiple sockets on the system board, the cores can be
set to work in parallel or divided to work in different configurations
to best utilize the power. But the software and OS has to support the
extra cpu, or core...if not it just sits there idle and does nothing
to help the computer accomplish the tasks. Now this is oversimplifying
everything, but it will serve for the purpose.

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