[vdr] Mid range CPU choice

Jouni Karvo jouni.karvo at tkk.fi
Tue Aug 21 15:32:21 CEST 2007


covert covert writes:
 > About to step into the deep end and build my first VDR box. In fact 2
 > of them at the same time both with the exact same specs.
 > All parts are going to be new.
 > New CPU's are a lot more confusing than the simple days of single
 > cores at fixed clockspeeds.

I can't help on the choosing CPUs part, but I can share my experience
with a P4 for a VDR.  The thermostatic control fans reduce noise, but
are not really silent.  I replaced both the power unit to a totally
fanless one, and my CPU cooler is Scythe Ninja Rev B, which is totally
silent (had a Zahlman AlCu7000 if I remember correctly, before).

Then I have an additional 120mm fan running slowly inside the box, but
that I cannot hear outside.

The most noise right now comes from my Seagate Barracuda hard drives,
which are pretty quiet, but still noticeable.  Especially one of them
which has probably bad bearings.

I also tried throttling / underclocking the CPU to reduce heat, but my
MB starts an annoying whining noise if I do that, so I could not use

But my advice, if you really want to reduce noise in a VDR, is to go
for fanless choices.

If you don't do other processing, any current desktop processor would
have enough processing power.  For Full HD it could be different,


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