Neobendix Posted March 29, 2005 Posted March 29, 2005 Hello, I recently purchased 4x512 TWINmos AA4t memory chips. After reading some posts about how to get low timings set on the chips, I set the DRAM voltage jumper to 4.0v, added a fan to cool both the RAM and the mosfet, and proceeded to configure the chips to run at DDR 400 2-2-2-6 2T timings. I left everything else on Auto including the FSB, LDT and CPU. After running memtest several times, I was able to get passes on all tests for several hours running at 3.3v. I then booted into windows and with smartguardian opened I launched Prime95 to test for stability. After monitoring the guardian while running Prime95 I noticed an increase in chipset temperature after the first pass at around 55c. I figured that was normal from what I've read about the thermal pad on the chipset being inefficient. Soon after I went to bed and left Prime running. After a few hours I woke to find the computer frozen. I did a hard boot and proceeded to look at the bios, but the boot screen would only show the CPU and would hang before showing the RAM. I then powered off system, unpluged cord, and reseted CMOS. When I powered back on the splash logo came up but I still couldnt enter bios, the screen would just hang there. After serveral resets, I finally was able to get into bios. After looking at all the settings I noticed that I could no longer set DRAM voltage past 3.2v. I then powered down the system and jumpered the DRAM voltage back to 3.2v, powered back and after several resets was finally able to get into bios again. I Optimized Defaults and booted into windows(abeit after several resets). Now windows is completely unstable and would BSOD randomly after a few minutes. I've tried many things: Re-flashed the bios(3.10), increased voltage settings on CPU, LDT, Chipset. Tested the RAM using memtest with all passes on each slot 1 at a time. Tried different DRAM (old PDP Patriots I had). Tried re-installing windows to no avail. Tried removing thermal pad on chipset and adding thermal grease. I'm pretty much out of ideas and 4.0v jumper no longer works. Please help Thanks Share this post Link to post Share on other sites More sharing options...
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