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<div><span class="gmail_quote">On 05/02/2008, <b class="gmail_sendername">R. G. Newbury</b> <<a href="mailto:newbury@mandamus.org">newbury@mandamus.org</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Steve Smith wrote:<br>> On 04/02/2008, Jean-Yves Avenard <<a href="mailto:jyavenard@gmail.com">jyavenard@gmail.com</a>> wrote:<br>
>> Hi<br>>><br>>> On Feb 4, 2008 11:46 AM, David Frascone <<a href="mailto:frasconebulk@gmail.com">frasconebulk@gmail.com</a>> wrote:<br>>>> Humm . . Mine is a 2.2 or so Ghz P4 -- think it can keep up?<br>
>>><br>>> Is this just a backend ?<br>>><br>>> If yes then 2GHz is plenty of power with plenty to spare.<br>>><br>>> I run a 200MHz machine with all the services you mentioned , and the<br>
>> CPU never gets over 5% !<br>>><br>>> To the person who also replied. A Core 2 Duo a 2.4Ghz is significantly<br>>> faster than a 3GHz P4 ... hardly a valid comparison<br><br>> A 200Mhz machine you say....interesting....<br>
><br>> I'm currently doing a theoretical exercise trying to figure out the lowest<br>> power (as in electricity) backend you can get.<br>><br>> The Mini-ITX boards can go as low as ~20w idle (or less), but are very<br>
> limited in PCI slots (useful in a backend!)<br>><br>> Anyone know if you can get multi-PCI slot boards with these kind of power<br>> requirements?<br>><br><br>You can get 2-slot PCI riser cards for Via mini-itx motherboards so you<br>
can run 2 cards. My Via SP13000 mb with PVR500, pcdhtv3000 and 2 hard<br>drives running used 37 watts. I seriously doubt that even a 200MHz chip<br>was that thrifty. In fact, I remember that my first couple of x86 based<br>
machines were quite hot!<br><br>For a backend however, a mini-itx would easily handle 2 PVR500's for 4<br>tuners, and you can always add an HDHomeRun externally.<br><br>Geoff<br>_______________________________________________<br>
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<div><br>Oh that's news I'd heard that the 2 way riser cards were a bit unreliable, but you seem to have had no problems.... well all grist for the mill.</div>
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<div>At the moment I run a combined f/e-b/e on a P3 900mhz but I have an old Mini-ITX gathering dust (not capable of playing Mpeg2 unfortunately).</div>
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<div>An idea I have at the moment is potentially to create a master/slave architecture with the Mini-ITX as the master (on all the time) and the P3 as a frontend/slave backend woken when it's needed.</div>
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<div>Anyway it's all theoretical at the moment....</div>
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<div>Cheers</div>
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<div>Steve</div>