bishyaler Posted October 6, 2009 Share Posted October 6, 2009 I have two nearly identical systems: Intel DP55WB Mobo Intel Core i5 750 Corsair TW3X4G1333C9A G (2 x 4GB) 1.5v Win7 RTM x64 (Computer A) Enermax 405w PSU + Nvidia 8800 GTS 640 (Computer B) Corsair 750w PSU + Nvidia GTX 260 Both computers are massively instable (BSOD, freezing) when idle with EIST/C State enabled. With EIST/C State disabled, they are much more stable at all times... but Computer B has random issues unless the memory voltage is increased to 1.6v I've spoke with Intel tech support about this, and they insist that it is a compatibility issue between the motherboard and the Corsair sticks. I am not overclocking and the memory timings are at stock 9-9-9-24 2T. Memtest causes instant reboots on both machines at stock settings. Are there any known issues or is anyone else having similar problems? Link to comment Share on other sites More sharing options...
Wired Posted October 6, 2009 Share Posted October 6, 2009 Do you have 2 pairs of TW3X4G1333C9A in each system? Link to comment Share on other sites More sharing options...
bishyaler Posted October 6, 2009 Author Share Posted October 6, 2009 Do you have 2 pairs of TW3X4G1333C9A in each system? yes, i have 2 2GB sticks in each system running in dual channel config (channel A dimm 0 + channel B dimm 0) Link to comment Share on other sites More sharing options...
Wired Posted October 6, 2009 Share Posted October 6, 2009 So the answer's NO. You only have one pair in each system. Link to comment Share on other sites More sharing options...
bishyaler Posted October 6, 2009 Author Share Posted October 6, 2009 you're right, im trying to read/answer this thread quick on my blackberry while at work. one pair per system Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 6, 2009 Corsair Employees Share Posted October 6, 2009 Please make sure that you have the latest bios and load setup defaults and then set the memory Voltage to 1.6 Volts then set the timings manually to the tested settings for the specific module you have, and test the modules one at a time with http://www.memtest.org to be sure one is not failing. If you still get errors, please follow the link in my signature “I think I have a bad part!” and we will be happy to replace them or it! However, if you get errors with both modules that would suggest some other problem and I would test them in another system or MB to be sure. In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test. Link to comment Share on other sites More sharing options...
bishyaler Posted October 7, 2009 Author Share Posted October 7, 2009 I re-enabled EIST/C State, increased ram voltage to 1.6v, and manually set timings. I am currently running memtest86+ 4.0.... so far so good. I had a question however: Intel's memory timing config page has many more values than the typical CAS 9-9-9-24. These values can be seen in the core i7 thread for intel motherboards sticky: http://forum.corsair.com/forums/showthread.php?t=76945 Can you provide the correct/stock values for my sticks so I can be certain the BIOS isn't picking an incorrect value? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 7, 2009 Corsair Employees Share Posted October 7, 2009 Just load setup defaults and set the tested settings any setting not listed should be set to BIOS default or AUTO. Link to comment Share on other sites More sharing options...
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