7sudden Posted November 19, 2007 Share Posted November 19, 2007 I just decided to take the move to Vista Ultimate 64-bit, and therefore bought another 2gb of Twin2X ram (TWIN2X2048-8500C5.) I updated to the latest bios for my Asus P5B motherboard and set the frequency to DDR800 at 2.10v (the highest the board would allow.) -Then I enabled the 'Memory Remap' feature. I can't get the system stable enough to pass memtest86. Is there an issue with my memory kits being manufactured more than a year apart? The part # is the same as the original set that I picked up over a year ago. Both sets work beautifully if installed by themselves. I've switched slots, etc but nothing improves. I've even tried clocking them down to DDR800 (frustrating with such fast ram) but they still aren't stable. What am I missing? :confused: Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted November 19, 2007 Corsair Employees Share Posted November 19, 2007 With this MB and 4 modules you would need to set the memory frequency at DDR667 and I would set the memory Voltage to 2.1 Volts as well. Link to comment Share on other sites More sharing options...
7sudden Posted November 19, 2007 Author Share Posted November 19, 2007 wouldn't running 4gb of memory at DDR667 negate any real benefits vs having 2bg running at DDR1000? 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 Yes maybe, but that is the limit of that MB. Sorry. You can try and link the memory frequency and then over clock the CPU but as you add more memory it will not over clock as much as it will with just two modules. Link to comment Share on other sites More sharing options...
7sudden Posted November 20, 2007 Author Share Posted November 20, 2007 What are the possibilities with another motherboard? (same ram) 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 Maybe with a 680I chipset you might get DDR800 or maybe close to 1030 MHz but the difference would be nominal at best. Link to comment Share on other sites More sharing options...
7sudden Posted November 20, 2007 Author Share Posted November 20, 2007 Thanks! -I was actually eyeballing a few boards. You are confident that the age difference between the two pairs of ram wouldn't necessarily affect their stability? 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 Personally I keep what you have and wait for DDR3 and build a new system. Link to comment Share on other sites More sharing options...
7sudden Posted November 20, 2007 Author Share Posted November 20, 2007 I'll take your advice! Thanks for all of the quick responses. -Thats why I stick with Corsair. You guys are simply the best. :cool: 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 Thank you and no problem, please let me know if you have any more questions! Link to comment Share on other sites More sharing options...
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