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Thread: Building crunching computer, hardware recommendations. |
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Thread Status: Active Total posts in this thread: 32
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ryan222h
Senior Cruncher Joined: Sep 4, 2006 Post Count: 425 Status: Offline |
Without digging too deep into that build...does not XEON need ECC REG RAM? Great you bring that up, didn't think of that. I just checked the motherboard memory support page and it seems you are right, you need ECC RAM. My experience with dual AMD boards is they can take either ECC or Non, but you couldn't mix and match.  |
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Bearcat
Master Cruncher USA Joined: Jan 6, 2007 Post Count: 2803 Status: Offline Project Badges: 
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On topic: Without digging too deep into that build...does not XEON need ECC REG RAM? You can use registered or the cheaper non registered ECC ram. Am running non registered on my dual X5670's now. Works fine.
Crunching for humanity since 2007!
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OldChap
Veteran Cruncher UK Joined: Jun 5, 2009 Post Count: 978 Status: Offline Project Badges: 
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my E5-26xx run fine using ordinary g-skill or samsung green ram
----------------------------------------BUT in my experience E5-26xx v2 REQUIRES ecc ram (in the same SM motherboard)  |
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ThreadRipper
Veteran Cruncher Sweden Joined: Apr 26, 2007 Post Count: 1322 Status: Offline Project Badges:
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Sure, anytime! :)
----------------------------------------I just rememberd one should probably run ECC RAM...read somewhere that if running lots of RAM on a system (and esppecially for scientific purposes) having error correction/detection is crucial because otherwise wrong bits may be introduced quite often. Too bad I don't have the link anymore. I have never run a dual-socket system, but I have wanted to try for a long time...two Xeon E5-2600V3 (Haswell-EP) would be nice :)  Join The International Team: https://www.worldcommunitygrid.org/team/viewTeamInfo.do?teamId=CK9RP1BKX1 AMD TR2990WX @ PBO, 64GB Quad 3200MHz 14-17-17-17-1T, RX6900XT @ Stock AMD 3800X @ PBO AMD 2700X @ 4GHz |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
http://en.wikipedia.org/wiki/ECC_memory
Fortunately with what we're doing, there's either constant or cyclic/random verification of results. Has to, as the project owners have no way of knowing on what computer a task will be processed, with or without ecc e.g., computer make 2014 or 2004. |
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KLiK
Master Cruncher Croatia Joined: Nov 13, 2006 Post Count: 3108 Status: Offline Project Badges: 
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And one more thing:
----------------------------------------when you search for a PC...don't think about "over-clocking" is a mainstream! Over-clocking does give frequent errors in results...so your machine if it's over-clocked will not be efficient! ;) |
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Jack007
Master Cruncher CANADA Joined: Feb 25, 2005 Post Count: 1604 Status: Offline Project Badges:
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I have a 2600K with 40+ million points running at 4 or 4.2 ghz little to no error problems.
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ThreadRipper
Veteran Cruncher Sweden Joined: Apr 26, 2007 Post Count: 1322 Status: Offline Project Badges:
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And one more thing: when you search for a PC...don't think about "over-clocking" is a mainstream! Over-clocking does give frequent errors in results...so your machine if it's over-clocked will not be efficient! ;) But it /is/ mainstream. One should remember that when Intel/AMD make CPUs, they do not develop an entirely new product line for a chip which i 100MHz, 200MHz etc faster than a reference CPU. That would not be cost-effective at all. The solution? Overclocking. They simply try ot what voltage (within some margins) a certain CPU needs to achieve a stable operation at a certain frequency and then set the multiplier and default VCore et to these values, put the chip into the correct packaging and ship it to stores. This process is often very conservative, therefore if you buy a multiplier-unlocked CPU you should not run into any trouble for as long as you test your stability thoroughly. I am runnin my Main PC in Sig. and it has not returned invalid results. Of course, trying to push an overclock too far (too litte voltage or too much voltage which gives too much heat etc will make the PC unstable) - one should also remember that one will probably not get as high of an OC as some reviewers or other people report, because often they just make it stable enough to get into OS and take a verification picture from within CPU-Z before it blue-screens. When putting a PC on 24/7 science calculations, stability in an overclock is paramount. But, achievable. Join The International Team: https://www.worldcommunitygrid.org/team/viewTeamInfo.do?teamId=CK9RP1BKX1 AMD TR2990WX @ PBO, 64GB Quad 3200MHz 14-17-17-17-1T, RX6900XT @ Stock AMD 3800X @ PBO AMD 2700X @ 4GHz |
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mmstick
Senior Cruncher Joined: Aug 19, 2010 Post Count: 151 Status: Offline Project Badges: 
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Honestly, you could build ten FX-8300 nodes with $3000 that would destroy everything with 80 cores, especially when running on Linux. You only really need one SSD/HDD for all ten nodes in the computing cluster.
----------------------------------------[Edit 1 times, last edit by mmstick at Oct 14, 2014 10:10:04 AM] |
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ryan222h
Senior Cruncher Joined: Sep 4, 2006 Post Count: 425 Status: Offline |
That's an idea mmstick, if you don't mind managing 10 nodes at once. How would one go about using one SSD on 10 nodes? Just curious.
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