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Crunch Build Log Bandwidth-Killer edition - Page 31

post #301 of 647
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Thanks for the encouragement--I was thinking that if I could get a hold of another 8 pin to 4 pin adapter I could use my molex removal tool and discard one of the 8 pin ends and plug two of the 4 pins into the 8 pin and be "factory"--the plug end on the 8 pin is arranged (D-shape/square shape) exactly like two 4 pins side by side--but not knowing the specs I thought about just jumping the leads as you suggested--I have a spare PSU I could sacrifice to Crunch for the greater good LOL and just might snip that off--but first let's see how one mobo performs. I expect to get right around 3 ghz--which would be adequate for a stable folder. I want to check out the temps and see how they are under load--shouldn't take but a few hours to determine the feasability of firing up another one....

Thanks Duke!
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post #302 of 647
CyberD, just a quick note on electricals- Make sure you know what voltages are going where, check on www.formfactors.org and see what the spec is for the plug. You may be able to split it right down the middle or have to do a custom setup- you don't know which wire sends what voltage which way. Just be careful and be sure what wire is going which way.
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post #303 of 647
Looks great Druid...
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post #304 of 647
Wait, so are you doing 2 PSUs again, instead of 4?
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post #305 of 647
Thread Starter 
Quote:
Originally Posted by Burn
CyberD, just a quick note on electricals- Make sure you know what voltages are going where, check on www.formfactors.org and see what the spec is for the plug. You may be able to split it right down the middle or have to do a custom setup- you don't know which wire sends what voltage which way. Just be careful and be sure what wire is going which way.
So true--and one of the reasons I sort of hesitated just firing Crunch up in full regalia...one mobo at a time will be just fine (beats smoking $500 worth of hardware) and this way I have time to absorb all the little things "wrong" with Crunch and correct them.

If the CPU stays as cool as it did while I monitored it in BIOS temps will not be the problem I had first imagined.
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post #306 of 647
Thread Starter 
Quote:
Originally Posted by drummer4lifex
Wait, so are you doing 2 PSUs again, instead of 4?
With so many unknoiwns and variables the end reult is not yet clear. According to power calculations I will need around 300 Watts to sustain a 3 Ghz OC--the Zeus is rated 560 continuous--280 is very close to 300. but as we all know in the real world power requirements vary--by using onboard video I may be able to squeak by--or by settling for a lower OC I might be able to split PSUs. I would like to keep everything internal on this build--it was the original aesthetic in the original plan.

It may turn out that Crunch can only support two mobos--not 4--both from a cooling and from a power perspective--if I keep all the parts internal.

First let's see how one rig performs.
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post #307 of 647
To look at the pinouts of the plugs and of the physical connectors themselves, go here and look at pages 35-38:
http://www.formfactors.org/developer...public_br2.pdf

It appears that you can just do them both together identically as you said above...
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post #308 of 647
Quote:
Originally Posted by Burn
To look at the pinouts of the plugs and of the physical connectors themselves, go here and look at pages 35-38:
http://www.formfactors.org/developer...public_br2.pdf

It appears that you can just do them both together identically as you said above...
Burn,

You're right man. The 8 pin connector is typically for dual processor boards. I see them all the time here at work on the Xeon server PSUs. All it is is 2 of the 4 pin connectors in one plug. Cyber - Your idea of using your molex tool to remove the 8 pin and converting it to dual 4 pin is right on the money. Just make sure you get the pinout right like Burn says and you will be good to go...just like a Taco Bell Crunchwrap Supreme...hmmm, time to go eat. Good luck man!
post #309 of 647
Thread Starter 
How cool is that...sometimes my hunches are correct...LOL

BTW I am posting from Crunch1.1!

Installing FAHconsole CPU ID and all that jazz!

Oops! Gottsta restart (again somemore--updater PITA)
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post #310 of 647
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First screenshot from first 805 rig in Crunch!
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