LstThngYouC Posted September 2, 2008 Share Posted September 2, 2008 This is my first time posting on this forum, although I have been a frequent visitor and have greatly benefited from other user's experiences over the last few months. I felt it only fair that I should share my own experience with the hope that someone else might take something from it. :biggrin: I built a new system back in March. The system has been pretty stable since day one, especially with BIOS 0402 (Asus P5E3 Premium), but it was never quite 100% stable. To quantify that statement, I rarely encountered any BSODs (WinXP or Vista), could play games hours on end without major problems (Crysis, Bioshock) & encode/decode video and audio. I did however encounter the occasional application crash, RAID array failure (happened once but was recoverable) and corrupted Vista file system (2 times, had to use the DVD to fix). I never have run my memory at 1800MHz because I like to keep my component voltages low and haven't had the need as of yet. Below are the speeds I have always run this system at: Intel X3350 @ 3.4GHz (425x8) Memory @ 1700MHz 7-7-7-20, CR 2, Perf. Level 7, 1.94-1.96V After upgrading to BIOS 0505 in July, the system became unstable. Ever since it has been nothing but the endless loop of tweaking settings--> run memtest 2x--> run prime95 25.6 --> fail anywhere between 3-10 hours --> repeat process. To make a long story short, there was no voltage on the CPU (core, pll, vtt, ref. voltages), NB or DIMMs that would result in a stable system. I also played with the CPU, NB and memory skews to no avail. I would always have a system that would work, but any prime95 run would always fail between 3-10hours. Finally I found a faster way to troubleshoot the problem: Memtest86+. With memtest I quickly discovered my system always errored on Test #4 (moving inversions, random pattern). So I dove in this past weekend to really figure out what was going on. Starting from stock speeds and moving up (increasing voltages as needed), I hoped to find a stable point. What I found was a definitive pattern in my memory failures at any fsb/cpu speed: (1) Test #4 (2) Memory address 1282.8-1283.1MB (3) Error bit was always 000X0000 After reading some other forums it seemed that having the same address & bit fail could most likely mean a memory hardware issue. So tonight I finally decided to test each module individually, and sure enough memtest86 passes with flying colors with 1 module and fails repeatedly with the other in the same slot (A2). Also, the failing memory address is at exactly half (641.5-641.9MB) and the failing bit is the same. I requested an RMA this afternoon. RAMGUY, do you think this is the appropriate action or is there something I have overlooked? Has anyone else had similar experiences? If anyone with a similar system is interested in the settings that have worked for me in general, i.e. voltages vs. fsb minimums, please feel free to respond. Link to comment Share on other sites More sharing options...
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