1) Message boards : Questions and problems : Building an energy-efficient BOINC Computer / Cluster (Message 66618) Posted 5 Jan 2016 by Nicnac Post: Thanks Richard, That helps a lot! I remember having an old pc like that sitting around somewhere, too!

2) Message boards : Questions and problems : Building an energy-efficient BOINC Computer / Cluster (Message 66610) Posted 5 Jan 2016 by Nicnac Post: Thanks for the quick replies! @Les Bayliss Thanks for the info on the CPU differences, I wasn't aware of that! @Agentb Thanks for those numbers! The RAC/Watt is very interesting and with that and Les Bayliss' info a low power CPU or GPU setup seems to be much better than any Raspi cluster. To get started I could certainly use my gaming rig and I might as well do that but with a 900W power supply it is extremely wasteful (and I would pay ~2.2k € a year). Also running a system only for certain times a day is not what I am looking for since I want a system that can run continuously so that the credits will add up over time. @noderaser I am not currently using my big pc (it's not even at my house right now) but an older macbook which can hardly handle running BOINC in the background. Also the main idea is to have an independent system for BOINC projects. -- I calculated that the maximum Wattage my build should have is 100-150W. Could you recommend a BOINC-specialized build (possibly including GPU) for that? Or is such a low-power setup not viable? Thanks again!

3) Message boards : Questions and problems : Building an energy-efficient BOINC Computer / Cluster (Message 66602) Posted 4 Jan 2016 by Nicnac Post: Hey everyone, This is my first post here as I am not yet participating in any BIONC project and I hope this is the right place to ask. I found an old thread on the topic but thought it would be worth discussing this again and with a few special ideas I've had. To start off I have been thinking about building a dedicated machine for BIONC for a long time now. I am thinking about SETI, Rosetta and CPU Projects mainly. I have a 3-year old gaming rig that still packs a punch but running it 24/7 long time is prohibitive for me due to electricity cost. So the main concern for my project is to make it energy efficient. My first idea was having up to 10 raspberry pis (V.2 model B) running at all times. The main selling point here is the ultra low energy consumption (~4W) and the relatively powerful quad-core cpu. Another idea is to have a nice setup with maybe 2 high-end CPUs and have that running at all times. Again, the main scope of the project is to have a machine running maybe even years and get long-term service from it, not quick credits for a couple months. I am not gonna do a GPU build since that would draw too much power. What are your thoughts on this? Is a raspi setup viable? Thanks in advance for your input!

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