pleventi Posted April 9, 2007 Share Posted April 9, 2007 Hi, I had 4 sticks of 6400-C4's running in SLI mode (2.1V 4-4-4-12) on my eVGA 680i motherboard. One pair of sticks went bad after two days of otherwise stable operation. The computer died with a C1 bios error and would not boot until I removed the offending pair of DIMMs. I've seen on the eVGA site that there is a belief that this motherboard is killing RAMs that want to run at 2.4V due to reliability issues, but at 2.1V I figured I would have been safe. I've RMAed the pair of DIMMs (to my vendor, since < 30 days) and am holding my remaining 2GB of RAM at 1.85V 5-5-5-18 until I get my new pair back. Frankly, I'm afraid of burning out my last bit of good memory. I sincerely hope this was just a random bit of bad luck since I (perhaps foolishly) paid extra for these C4 sticks only to run them at C5 speeds. Regards, Paul Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted April 10, 2007 Corsair Employees Share Posted April 10, 2007 With 4 modules you may have to run the memory at DDR667 and I would suggest setting the Voltage to 2.0 Volts. Link to comment Share on other sites More sharing options...
pleventi Posted April 10, 2007 Author Share Posted April 10, 2007 Really? Where is the need to run at DDR667 with 4 sticks of RAM documented (I must have missed it somewhere)? That is most unfortunate. Though the system was rock stable for the two days I ran with the 4DIMMs @ 2.1V 4-4-4-12 (strange but true). That said, I still wouldn't expect the RAM to *die*, just for the system to be unstable. Removing all the RAM except the pair of bad RAMs still results in C1 boot error. The sticks are dead, and were working fine for a couple of days. BTW, I'm really impressed by the level support on this board. Thanks, Paul Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted April 12, 2007 Corsair Employees Share Posted April 12, 2007 Thank you for the compliment. And as you add more memory to any system you may need to relax the settings because of loading on the memory controller. But to be sure test them one at a time at the tested setting to make sure one is not failing. And if I understand you correctly it sounds like you have done this and one module is not working? If so please use the On Line RMA Request Form and we will be happy to replace them or it. Link to comment Share on other sites More sharing options...
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