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Sgt.Joe
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Re: New Computer for WCG

Ok, so i may have gone down the wrong path with the old servers by the sound of it.

The advantage to the servers is they are built to run 24/7. Not a bad choice, but not the most efficient choice.
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Byteball_730a2960
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Re: New Computer for WCG

If you are going to go with 2683V3 chips, you need the LGA2011-3 socket which supports V4 chips too.

Someone posted this sometime back as a good dedicated cruncher only board

http://www.newegg.com/Product/Product.aspx?Item=N82E16813182967R

Unforunately, it is sold out at the moment, but at the time was about $285 I think. The full retail model sells for $300 which is pretty good. My own supermicro board cost $500+ as it is my main computer and I didn't want to cram everything into a small form factor.

If I was building a dedicated cruncher, I would go down the route of buying that board, a simple ATX case, a beefy PSU and 2 matched V3 or V4 engineering sample xeons.
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nanoprobe
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Re: New Computer for WCG



Does anyone know of hand if it possible to get dual socket motherboards for the Xeon E5 2683 (or similar) at a reasonable price? Would this negate any power savings gained by using these CPU's (extra heat and motherboard may use more power than two separate motherboards???).


Keep an eye out at Newegg for open box server boards. On the power side my dual socket E5-2683 running 56 threads @ 2.3GHz. pulls 270 watts at the wall and that includes a GPU for display. If I ran it headless on Linux it would be less. I'll let you be the judge if that is better than 2 separate mobos. biggrin
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In 1969 I took an oath to defend and protect the U S Constitution against all enemies, both foreign and Domestic. There was no expiration date.


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[Edit 2 times, last edit by nanoprobe at Mar 16, 2016 1:03:02 AM]
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fuzzydice555
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Re: New Computer for WCG

100W is a huge improvement, your wallet will thank you in the long run smile

Servers are built for redundancy and 24/7 availability. A single server-grade fan can consume 14W when running full blast. I would advise against removing fans though, since in a rack server they're absolutely necessary. biggrin
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nanoprobe
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Re: New Computer for WCG



Servers are built for redundancy and 24/7 availability. A single server-grade fan can consume 14W when running full blast. I would advise against removing fans though, since in a rack server they're absolutely necessary. biggrin


Actually mine runs caseless in my upstairs closet. Regular 120MM fans blow the hot air into the attic. (Don't tell my wife I cut holes in the wall. The fans cover them up. biggrin)
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KLiK
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Re: New Computer for WCG

Ok, so i may have gone down the wrong path with the old servers by the sound of it. Thanks for giving me the heads up on the power usage of these servers.

Unfortunately I have already bought these and I will have to use these until I can put some more money together for a more modern cpu like the ones mentioned above. Does anyone know of hand if it possible to get dual socket motherboards for the Xeon E5 2683 (or similar) at a reasonable price? Would this negate any power savings gained by using these CPU's (extra heat and motherboard may use more power than two separate motherboards???).

As for the server I have now, I have taken the advice of fuzzydice555 and Sgt.Joe. I have now removed unnecessary hardware (1 psu, two hdd's, two of four sticks of RAM, Optical Drive, and a raid controller) from the Dell 1950. This has bought the power usage down from 350w to 250w. I have reinstalled my OS to a USB stick.

Still waiting on the new HP from my previous post and will post some details about this when I get it set up.

Thanks again everyone, it is good to have these discussions to get the most we can out of our hardware.

thx, will update my 2x Linux soon...& cut down on those W! wink
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fuzzydice555
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biggrin Re: New Computer for WCG



Servers are built for redundancy and 24/7 availability. A single server-grade fan can consume 14W when running full blast. I would advise against removing fans though, since in a rack server they're absolutely necessary. biggrin


Actually mine runs caseless in my upstairs closet. Regular 120MM fans blow the hot air into the attic. (Don't tell my wife I cut holes in the wall. The fans cover them up. biggrin)


Oops. biggrin

I've seen someone run a single blade from a blade server... with a hairdryer set to cold air. I think that takes the cake as most ghetto cooling solution. biggrin
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Sgt.Joe
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Re: New Computer for WCG

I've seen someone run a single blade from a blade server.

I would like to see how that is done. Any specifics ?
Cheers
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nanoprobe
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Re: New Computer for WCG



Servers are built for redundancy and 24/7 availability. A single server-grade fan can consume 14W when running full blast. I would advise against removing fans though, since in a rack server they're absolutely necessary. biggrin


Actually mine runs caseless in my upstairs closet. Regular 120MM fans blow the hot air into the attic. (Don't tell my wife I cut holes in the wall. The fans cover them up. biggrin)


Oops. biggrin

I've seen someone run a single blade from a blade server... with a hairdryer set to cold air. I think that takes the cake as most ghetto cooling solution. biggrin

I would like to see that too. I'm going to be redoing my upstairs setup soon. Had planned on starting tomorrow but I'm now battling acute bronchitis and feel lousy and can't sleep so no worky tomorrow. My plan is to try and run 2 server mobos off 1 PSU. I've done it with desktop boards but never tried it with server boards. Hope I'm not sorry for trying. biggrin
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fuzzydice555
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Re: New Computer for WCG

https://www.youtube.com/watch?v=gP1ign3ygzw I couldn't find the hairdryer version but this is the same idea. If I remember correctly:

1. You'll need a high amperage connector/cable for +12V on the back.
2. You need a dongle which gives you VGA output and USBs for input.
3. Flip some dip switches so the blade boots without its enclosure. I don't know the exact configuration, sorry :(
4. Add server grade fans so the blade will not cook itself.
5. Add a network card/wifi to one of the USB ports.
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