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2 kits of TWIN2X4096-8500C5D + EVGA 780i FTW


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Hi folks, noob here, did a search but did not find anything. My specs are already in my profile but if I missed something, I will be more than glad to post it.


My problem is very simple, I can not seem to maintain a good stability with this Ram and my motherboard. Here is what I have done so far.


Gone to the Bios and set the Ram to UNLINKED, 1048 is as high as I can have it if I want some sort of stability here. Voltage is set at 2.1v manually, timings at 5-5-5-15 2T as stated in the mem sticks.


Some people have suggested loosening the timings and increasing the voltage in the north bridge and there is where everything just goes blurry for me. I mean, I know my way around computers but I am no PC guru by any stretch of the imagination.


Can someone take pity on me and guide me through the settings I should be having with this board? I don't run any Overclocks on anything but I just want to use my PC w/o fear of BSODs or memory errors


I dual boot with Vista & Win 7 (RC Build 7100) Ultimate x64 bit, I use win 7 the most but the problems are with Vista as well.


I know the problem is not the Ram since I have already run memtest86 and it passes fine, ran 1 stick at a time on all ram slots so I know is not the board either. It just when I combine the 4 sticks together that all goes down the drain.


Thanks fellas.

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OK, I'll try that but, say that works, it still doesn't solve the issue though... I still won't be able to utilize the RAM to its fullest.


I think I did that before and it still gave me problems but I'll do it again.

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Well, I am now baffled because it seems 2 sticks of Ram are now giving me problems. Let me back up a little bit here.


A few weeks ago, I started to have multiple & random BSODs, ran Windows Memtest and 1 stick was faulty so I sent the set back for RMA. Well the set just came back so I was only using 4GBs.


I had received a few BSODs yesterday but I thought it was because I was playing an old game that may not be compatible with Win 7 but after a few more BSODs in less than 1 hour (w/o playing the game in question), I decided to test the Ram. Again, to recap... I was only using 4GBs (old working Ram) and not the new Ram that I just got back from RMA.


Before installing the new set, I wanted to make sure I had the correct settings, timings, voltage, etc, etc, hence, my initial post.


I don't really know what all this means but I know that is not good. I guess I need to make another RMA for the remaining ram?


This is what Memtest tells me:

2) MemTest tells me "Memory error detected...", what does this mean?


This is not normal. Your RAM is bad, or your system is incorrectly configured. Even just 1 error means that you have a problem. If you have overclocked your machine, or selected aggressive RAM timings in your BIOS you should try more conservative settings before judging the RAM fully bad. If you can't get MemTest to run without errors even with conservative BIOS settings, however, your RAM is bad. Replace it, or you will experience stability and corruption problems. Correctly functioning RAM has no errors, even if you run MemTest for days.


I don't have agressive Ram timings, I use Corsair's default settings, even though I manually had to input them. I don't have anything Overclock.



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  • Corsair Employees

Let's get them replaced, please use the On Line RMA Request Form and we will be happy to replace them.



With 4 modules I would suggest setting the memory frequency at DDR667 and set the memory Voltage to 2.1 Volts and set the NB/MCH/SPP Voltage to +.2 Volts as well and test the system with http://www.memtest.org. In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test.

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