Elpida Memory problem with Pegatron IPISB-CH2

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taggii

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Mar 23, 2014
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Hi there, I have a problem with some Elpida memory, they will not run i dual channel mode, only single channel. If i try to run i dual channel the motherboard is making stupid sounds.
I have tried update the bios, but it didn't help at all.

Motherboard: Pegatron IPISB-CH2
Memory: Elpida EBJ21UE8BDF0-DJ-F 2x2GB

I hope there is someone who has a solution to my problem.
 
Solution
Cristi72


Well, this could definitely be the problem; take a look on this:

https://www.google.ro/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&ved=0CDYQFjAD&url=http%3A%2F%2Fwww.overclockers.at%2Fcontent%2Fsandy-bridge%2FSandy-Bridge-Datasheet-Volume-1.pdf&ei=_DrbU8aDIoHIyAO3-oCwBQ&usg=AFQjCNGmHqiCtjZFz0kSAbUD1_5xFIIejA , fig.8-1, 8-2, 8-3. 8-4 (pinout map)

Verify what exactly the broken pins were doing (it is possible they were in the...
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Cristi72

Cristi72

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Jun 25, 2014
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Hello,

For dual channel, you must use the same colour slots (in this case, the black slots, noted DIMM1 and DIMM3).

Please use only one memory at the time and check the memory by using Memtest. If there are no errors, put the memory in the other slot and repeat the test.
 
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taggii

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Mar 23, 2014
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I have done that, 10 times now. I have tried with 6 different memory's. All does the same.
And I have tried with 4 of the same type of memory, still the same.. But all work fine in single channel.
 
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taggii

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Mar 23, 2014
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I'm using an i3-2100, this os the first time, I have seen this.
Do you think it is the mobo?
 
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SlayZombi

SlayZombi

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Jan 3, 2014
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Ok, an i3 supports dual channel.... hmmmmm.... maybe it can be the motherboard.
 
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Cristi72

Cristi72

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Jun 25, 2014
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This is tricky... Usually the motherboards are to blame in such cases, but starting with "i" processors the memory controller is built into the CPU, so it can be also a problem with the CPU (if you moved recently the system, try to re-seat the CPU in its socket; don't forget to change the thermal compound between CPU and the heatsink). You have the possibility to test the CPU and the memory in some other system?
 
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taggii

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Mar 23, 2014
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I will try to find another mobo, and see if this is the problem.
It could be the pins in the socket? I just looked there is 3 pins there is broken, but the system works, but what can you expect when you gets a mobo for free :D
But I will find a new mobo, and if it works I will tell :p
Thanks for the support
 
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Cristi72

Cristi72

Admirable
Jun 25, 2014
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Well, this could definitely be the problem; take a look on this:

https://www.google.ro/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&ved=0CDYQFjAD&url=http%3A%2F%2Fwww.overclockers.at%2Fcontent%2Fsandy-bridge%2FSandy-Bridge-Datasheet-Volume-1.pdf&ei=_DrbU8aDIoHIyAO3-oCwBQ&usg=AFQjCNGmHqiCtjZFz0kSAbUD1_5xFIIejA , fig.8-1, 8-2, 8-3. 8-4 (pinout map)

Verify what exactly the broken pins were doing (it is possible they were in the power supply area, so it wouldn't make a difference, but if even a single one is in the area signaling with the DIMMs... well, you have found the problem :) )
 
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Solution
T

taggii

Honorable
Mar 23, 2014
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10,510


two of them is in the DIMM area, so the problem is this. :p
 
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