btacular Posted November 17, 2007 Share Posted November 17, 2007 There is a similar thread..."http://www.asktheramguy.com/v3/showthread.php?t=64479 " I'm a novice system builder. I wasn't sure whether to start this new thread or comment on that one. I followed all of the suggestions up until the last post: My system has the following specs: Intel Quad Core Q6600 Asus Maximus Formula SE Bios 701 CM2X1024-6400 eVGA Geforce 8800GTX Soundblaster X-Fi ExtremeGamer ATI TV Wonder 650HD PCI-E 750W PSU (Thermaltake) DRAM=2.0V w/ Auto Timings and Legacy USB off I had four sticks of the RAM. One was obviously defective and would not let the system boot so I RMA'd it already. The remaining 2 of the 3 sticks have the following errors in MEMTEST-86... I didn't test the third because at this point it seems highly unlikely it's just a RAM issue. Aside from a faulty motherboard, what can cause these RAM errors and system instability? How do I diagnose a mobo problem vs a RAM or Peripheral problem? Thanks in advnance. Link to comment Share on other sites More sharing options...
DerekT Posted November 17, 2007 Share Posted November 17, 2007 Download Memtest86+ Version 1.70 from http://www.memtest.org Remove all but one stick and test each stick singly. To isolate the issue from motherboard, test the DRAM in another system. If you are getting more than one stick having errors then it is very doubtful that the passive DRAM is causing the issue. Look to your power supply and motherboard as possible creators of the issues. Results? Link to comment Share on other sites More sharing options...
btacular Posted November 18, 2007 Author Share Posted November 18, 2007 I tested only one stick so far. After 90 minutes I got this error one 1 stick of ram (1st slot): test:8 pass:6 failing address: 000174e4610-372.2MB good: ffffffff bad:fffffffd Err Bits: 0000 0002 Count:1 Should I try manual timings or keep them on auto with voltage at 2.0? I will test the additional sticks tomorrow. btw.... i just noticed that the Asus QVL rec'd CM2X1024-6400C4 for this mobo which seems to have different timings than my CM2X1024-6400... maybe my ram isn't for this system? Link to comment Share on other sites More sharing options...
DerekT Posted November 18, 2007 Share Posted November 18, 2007 What is the exact model and version of your DRAM? Are they all the same model and version? Link to comment Share on other sites More sharing options...
btacular Posted November 18, 2007 Author Share Posted November 18, 2007 all are CM2X1024-6400 1.90V Ver5.1 edit: any suggestions on timing/volt to use? Link to comment Share on other sites More sharing options...
btacular Posted November 20, 2007 Author Share Posted November 20, 2007 I lowered the DRAM freq to 667 at 1.9volts and got the same error address... this time it was on the 1st pass instead of the 6th... So all 4 sticks have failed memtest... I don't have access to another board that supports ddr2-800 or a spare PSU, so how do I determine if it is a memory problem vs a mobo problem or PSU problem? Also, did I buy the wrong ram? Asus QVL lists CM2X1024-6400CR as recommended memory but I have CM2X1024-6400... is this the problem? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted November 20, 2007 Corsair Employees Share Posted November 20, 2007 Let's get them replaced, please use the On Line RMA Request Form and we will be happy to replace them. Link to comment Share on other sites More sharing options...
btacular Posted November 30, 2007 Author Share Posted November 30, 2007 update: The board was faulty after all. I bought a differently branded X38 board with Corsair matched RAM and it's working great so far. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted November 30, 2007 Corsair Employees Share Posted November 30, 2007 Great news and thank you for letting us know! Link to comment Share on other sites More sharing options...
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