bduttry Posted December 8, 2011 Share Posted December 8, 2011 Recently I upgraded to a AMD FX-8150 previously I installed 16 GB corsair vengeance CMZ8GX3M2A1866C9. My motherboard is the gigabyte GA-890FXA-UD5 reversion 3.1 bios version FEC. Prior to this Cpu upgrade my processor was AMD phenom 1090t black addition with the same memory installed. Before the upgrade I can operate this ram at 1866 MHz over clocked with the 1090 T. (very unstable of course the base clock was 233 x8.0) windows XP 64 bit addition could load but not stay running for very; long lockups or a blue screen would occur. Now since I have upgraded cpu I can start up My system with clocked to 1866 9.33x200 MHz this is surprising. After a few tests I was able start up with just one stick of 4 gigabyte ram inserted at the proper timings and full clocks speed. As time went by I was able to populate another slot with the memory at the correct speed. Since this happened I assumed I had the timings proper then I installed the rest of the memory it would not fire. Any suggestions from voltage timing latency voltages I could use to tame this wild horse more pertinent information my power supplies a 780 W, I have six 250gb a western digital 16 mb buffer all raid0, my graphics card is a GV-R6850C-1GD AMD radeon HD 6850 1GB G. DDR 5. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 8, 2011 Corsair Employees Share Posted December 8, 2011 With more modules installed you will need to lower the memory frequency more than likely to DSDR1333 or DDR1600. Link to comment Share on other sites More sharing options...
bduttry Posted December 9, 2011 Author Share Posted December 9, 2011 do you know of a corsair ram set that i can use to reach 16gb ram at 1866 or 2000 at the lowest latency possible and i need to populate all slots and the ram must be in the color blue i posted a picture too see i have a theme of blue circuits and blue leds... Link to comment Share on other sites More sharing options...
peanutz94 Posted December 9, 2011 Share Posted December 9, 2011 Now since I have upgraded cpu I can start up My system with clocked to 1866 9.33x200 MHz this is surprising. It should not be a surprise. That CPU supports 1866mhz memory right out of the box! do you know of a corsair ram set that i can use to reach 16gb ram at 1866 or 2000 at the lowest latency possible and i need to populate all slots and the ram must be in the color blue i posted a picture too see i have a theme of blue circuits and blue leds... You can use any 16 gig Vengeance kit . When you use two 8gig kits as you are , it can be hit and miss as to whether or not it will work Link to comment Share on other sites More sharing options...
bduttry Posted December 18, 2011 Author Share Posted December 18, 2011 still stable @1600 9 9 9 24 34 2t 160ns i can over clock my cpu to 4200 easy but this limitation of my memory controller i can run 2 sticks at a time a the rate of 1866 @9 10 9 24 .... but few blue screen happen here or there id rather have 16gb of ram stable than 8gb of ram unstable, unless any new news of setting change i need to do Link to comment Share on other sites More sharing options...
dave99 Posted December 20, 2011 Share Posted December 20, 2011 I have the same board and version, waiting to upgrade to the FX-8170. I have GSkill 2133 CAS9 16GB set. Here are the bios settings I use to get 1716DDR3 8-9-8-18 with my AMD 1055T. You should do slightly better with the FX 1866 memory controller but not much. AMD can only use 2 memory slots at the rated speed so you need to up the volts and lower the speed. Syst Volt Control = manual CPU PLL = 2.69v DRAM volts = 1.69v (2133 is labeled for 1.65, not sure of yours) NB Volts = 1.33v HT Link = 1.38v NB/PCIe/PLL = 1.94v CPU NB Vid = +0.575v CPU Volts = +0.100v (I have the 1055T rated at 1.4v) Dave Link to comment Share on other sites More sharing options...
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