AlexWalters Posted July 26, 2010 Share Posted July 26, 2010 Recently been acquiring upgrades for my system, new motherboard, cpu, ram, and gfx card (was stuck at the DDR/Athlon64/AGP era!). When powering up it seems one of the sticks causes the POST to fail (either at start or part way through memory test phase). I've tested with 2 PSU's and a couple of graphics cards in case it was a power issue, the same outcome resulted in all configurations. Its looking like its just one stick as I've tried running just a single slot with each, but it is obviously not completely dead, as presumably nothing would happen at boot at all if that were the case. I've seen a lot of people on various forums having problems with DDR3 in general, I've noticed a lot of posts telling people to input timings manually, or raise the voltage. There are no voltage control's in this BIOS, but there are a gazillion settings for the timings (far more than just the 9-9-9-24 values on the stick) and the 'auto' settings pick up the frequency as 1066 instead of 1333. Is there anything else I should try before looking into getting it replaced? Al Link to comment Share on other sites More sharing options...
AlexWalters Posted July 26, 2010 Author Share Posted July 26, 2010 After some more browsing I found http://forum.corsair.com/forums/showthread.php?t=54052 I'll try this (Corsair tested values for the Asus P5K3 which should be 'fairly' similar to my P5KC I'd imagine): AI Overclock: Manual CPU Control: AUTO FSB Frequency: 333 MHz PCIE Frequency: AUTO DRAM Frequency: DDR3-1333 MHz DRAM Timings Control: Manual CAS# Latency:___________9 RAS# to CAS# Delay:______9 RAS# Precharge:__________9 RAS# Activate to Precharge:24 DRAM Static Read Control: Disabled DRAM Dynamic Write Control: Disabled CPU Spread Spectrum: Disabled PCIE Spread Spectrum: Disabled CPU Voltage:__________1.4500V CPU PLL Voltage:_______1.6V DRAM Voltage:_________1.5V FSB Termination Voltage:_1.3V North Bridge Voltage:____1.55V All settings not listed should be left at AUTO or BIOS Default I'll let you know how it goes. Link to comment Share on other sites More sharing options...
AlexWalters Posted July 26, 2010 Author Share Posted July 26, 2010 Ok, so I plugged the 'working' stick in, set the bios settings that I could, as above: FSB freq: 333 DRAM Freq: 1333 DRAM Timings: Manual CAS: 9 RAS to CAS: 9 RAS PRE: 9 RAS ACT: 24 DRAM Static Read Control: Disabled DRAM Dynamic Write Control: Disabled CPU Spread Spectrum: Disabled PCIE Spread Spectrum: Disabled Left voltages all on Auto (although it seems I can change them afterall, I just hadn't seen them previously as they only appear when AI Overclock is on manual) All other settings were on default. I started up on one stick, everything ok. Shutdown and restarted with the second stick in as well, this time it got past the memtest (though it stalled briefly around 32XXmb) - pc restarted just as the windows 7 start up logo appeared. Restart resulted in a black screen only. After a cold boot the same occurred again, so I switched off, pulled out the 'dodgy stick', tried again with just the single stick, and here I am back in windows. Still not all in vain, I do know that I can change the voltages now if required. Link to comment Share on other sites More sharing options...
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