rookies13
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My system was running great and finally decided to upgrade the CPU's I went for x5670's. Installed them and cant get them to work together. Set them up individually and tested them with the Intel tester and both work 100% by themselves. Connect them together thru jumpers and cant get them to show anything there is no output. Need help
Motherboard Classified SR-2
CPU Intel Xeon 2x E5620 Quad Core 2.4GHz 12MB 5.86GT/s
RAM Corsair Dominator 12x 48 GB PC3-10666 1333 MHz
Graphics Card 3x EVGA GeForce GTX 580 CLASSIFIED ULTRA
Case Aerocool Strike-X ST-Bk
Solid State Drive Seagate Momentus XT
Hard Drive Seagate Model Constellation ES.2 3TB X2
Power Supply EVGA 100-PS-1200-GR Classified SR-2
Cooling Cooler Master Hyper N520 X2
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gordan79
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/08/11 01:04:11
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Sounds like at least one of your CPUs has at least one duff QPI link.
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rookies13
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/08/11 11:16:40
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Can the QPI be turned on or off? They are x5670 and the specs say 2 QPI
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gordan79
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/08/11 12:39:37
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No, they cannot be turned off. In dual CPU configuration, one QPI link from each CPU goes to the north bridge, and one QPI goes to the other CPU to facilitate access to the memory connected to the other CPU. If the second QPI link is damaged on the CPU (or the motherboard, e.g. broken trace or bent socket pins), the CPU will still work OK on it's own (nothing to connect to the 2nd QPI), but it will not work with both CPUs installed unless they can both bi-directionally connect to each other.
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rookies13
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/08/11 13:43:25
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Is there anyway of testing the GPI's individually? I have run diagnostics on both separately with the Intel diagnostic tool and they both pass individually.
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gordan79
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/08/12 01:59:47
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There is no easy way to test without a known good working CPU and a known good working motherboard.
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rookies13
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/08/27 12:54:04
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evga classified sr-2 cpu dont communicate could bad ram be the problem?
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gordan79
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/08/28 00:08:05
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Very doubtful, but you can eliminate bad RAM as a possibility by testing the RAM with a single CPU, then using two known good DIMMs, one in slot 0 on each CPU. If the 2nd CPU doesn't show up but both CPUs show up when tested individually, it is near complete certainty you have a fault in the 2nd QPI connection between the CPUs.
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rookies13
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/08/30 17:32:56
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They worked with the x5620 pair and they where matched. This x5660 are not number matched would that be a prolem. I thought they have to match to be a married pair?
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rookies13
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/08/30 17:36:53
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I went ahead and dropped 1 Stick of ram (4gb ea) for each cpu and they still work independently but not together.
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gordan79
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/08/31 01:59:13
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As long as they are the same stepping (and if they are the same model they generally all are the same stepping), they should work fine. It doesn't matter if they were made on different dates in different factories. It sounds very much like you have at least one duff CPU.
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rookies13
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/09/03 16:17:36
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Thanks every one for help got it fixed.
Motherboard Classified SR-2
CPU Intel Xeon 2x E5670 2.93GHz 12M Cache Six Core Processor 6.4 GT/s QPI (3200 MHz)
RAM Corsair Dominator 12x 48 GB PC3-10666 1333 MHz
Graphics Card 3x EVGA GeForce GTX 580 CLASSIFIED ULTRA
Case Aerocool Strike-X ST-Bk
Solid State Drive Seagate Momentus XT
Hard Drive Seagate Model Constellation ES.2 3TB X2
Power Supply EVGA 100-PS-1200-GR Classified SR-2
Cooling Cooler Master Hyper N520 X2
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BrandonS
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/09/03 16:21:25
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Please let us know the solution, in case someone else has this same problem.
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rookies13
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/09/03 20:42:32
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I repaired CPU 0's receiver mount , there were 3 pins that where bent over. I must of accidently bent them when I took the old CPU out. I straightened them out. This took about 3 hours. Have to be very careful not to break them off.
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XrayMan
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/09/03 21:16:45
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rookies13
I repaired CPU 0's receiver mount , there were 3 pins that where bent over. I must of accidently bent them when I took the old CPU out. I straightened them out. This took about 3 hours. Have to be very careful not to break them off.
Thank you for explaining. People will check their pins. 
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Cool GTX
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/09/03 21:53:24
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Woot its alive 
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gordan79
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Re: Cant get the CPU's to work together on my SR-2 motherboard
2016/09/04 02:21:37
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If the problem was the bent pins and your RAM got very hot very quickly, I am amazed you didn't burn anything out. You got very lucky.
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