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A few RMA questions


TDZGamer

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Hi, I got a couple of defect memory modules and I wonder:

 

1.) Shouldnt I try to get replacements at my vendor before I ask you guys? I live in Norway and California is almost literally on the other side of the world :p

2.) Do I have to send both modules of a kit when only one of them is defect?

3.) Of 2 kits, a total of 4 modules, one module in each kit is defect. Can I set the two healty modules in dual channel even if they are not "matched"?

4.) If yes, can I expect them to perform at stock values?

 

The kits in question are:

CM2X1024-6400C4DHX

XMS2-6400 1024MB 800MHz 4-4-4-12 2.10V ver2.1 (08200591 and 08010020)

 

Edit:

Thx :)

TDZGamer

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  • Corsair Employees

Are all of the modules the same version? If not then I would suggest getting them all replaced. but there is no guarantee that they will be two matching sets as we only guarantee 4 up with our Quad sets. And yes if you do the RMA you will want to start the process with us we would normally use our Hub in Denmark for most fif not all European customers.

 

If all four modules are the same version you can try just the two failing modules but you still may run into an issue with the new and old set working together.

Have you tested the suspect modules one at a time at the tested settings and Voltage with http://www.memtest.org to make sure it is not some other problem?

And with 4 modules DDR667 would be suggested at 2.1 Volts and set the NB/MCH Voltage to +.05 Volts as well.

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Yes, both kits have the exact same model denomination, only the lot code is different between the sets (as detailed in my first post). I have researched a bit on the forum to troubleshoot properly. I have an XFX 780i SLI and an Asus P5N-E SLI. I have tested the chips individually on both boards with two different PSUs (NorthQ 1000W and MIST 500W). It would be a long post if I were to detail exactly what I have done, but basically I have followed the instructions to the letter.

 

One chip in each set consistently fail memtest at stock speeds, but all of them pass at 667MHz DDR (also as a 4 up config). I have tested each chip individually in DIMM slot 1 on both motherboards. The failures are either freezes (memtest locks up) or they start racking up errors while memtest is running. I have tried to set the timings and voltages manually as recommended here on the forums, 4-4-4-12-2t-2.1v (actually 2.085v and 2.075v), trc24 for this model and I disabled USB legacy for the Asus board etc. I tried 750MHz on one of the problem chips and it failed there too and I decided I tried enough.

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NP Please let me know if you have any more questions!

I have ordered a replacement because I absolutely must have one PC up and running so I am using the healthy modules until my new ram is here, that means I cannot send the modules until early next week. I hope that is ok.

 

Cheers,

TDZGamer

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