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ASUS P6T and 2 pairs of TR3X6G1333C9 trouble


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Hi and thanks in advance for any help provided.


as the title says i have the P6T and tr3x6g1333c9 g memory, i have 2 of those kits of ram for a total of 12G. i also have a corsair 850 psu that i LOVE!


I'm having trouble with the ram (i think), here is what i'm experiencing:


  • bios see ram as 1066 instead of 1333 (my settings are all auto so that is likely the problem)
  • if i set my speed manually to 1333 instead of auto the system gets just past POST then restarts
  • i have run Memtest86+ v2.11 and got lots of red errors on the bottom (over 3000 it said)
  • testing one module at a time in A1 right now to see if i can find which module fails (is this right to do?)
  • System is extremely unstable, reboots on its own, blue screens two or three times a day.
  • ram is only a few days old, can i just exchange it at the retailer i got it from (frys)? or do i have to RMA it?


Thank you again for any guidance, i realy could use a list of what bios items i set to what. could that cause the ram to fail in memtest?


Memtest86+ v2.11 Test Results (one stick at a time in DIMM A1, Single pass):

  • #1 - :D: - OK
  • #2 - :mad: - Failed - See attached image IMG_0052.JPG
  • #3 - :D: - OK
  • #4 - :D: - OK
  • #5 - :D: - OK
  • #6 - :D: - OK


One last thing i've noticed. When i put in the bad stick by itself, sometimes it won't post at all. just a black screen, fans running, power obviously on, but nothing else. restart it several times and then it comes up and i tested it a 2nd time and still failed.


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Try increasing your QPI DRAM Bus Voltage (aka memory controller voltage) upwards in slow increments. It may take as much as 1.45v or more to run 6 modules stable.


Also, you can try splitting the memory into 2 equal kits of 3 and try getting the system stable with 6GB first. This will help you isolate and/or eliminate other causes and get you more familiar with the BIOS.

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Well so i supose based on the test results from Memtest that i need to either get my local Fry's to swap out that one stick that failed the test assuming that stick 6 continues to test out ok, or RMA it back to Corsair.


So outside of that would anyone know the exact Bios settings i should use for the 6 sticks when i get a good one back. I don't need overclocking, this is a graphics design computer and 122G with the 920 CPU is a huge upgrade so OC is not needed right now. I just need it to be super reliable, even at the cost of a little speed.


Thanks a ton for all the help!!

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I only have them for the P6T Deluxe so there might be some differences. Please post any differences you find. These are pretty basic though, so they should be pretty much the same.


Enter your BIOS and set to these values:

AI Overclock Tweaker

Ai Overclock Tuner = X.M.P.
CPU Ratio Setting = Auto
BCLK Frequency = 133
PCI-e Frequency = 100
DRAM Frequency = DDR2-1333
All Else to Auto


CPU Voltage = Auto
CPU Pll Voltage = Auto
QPI/DRAM Voltage = Auto
IOH Voltage = Auto
IOH PCIe Voltage = Auto
ICH Voltage = Auto
ICH PCIe Voltage = Auto
DRAM Bus Voltage = 1.65v

Advanced -> CPU Configuration

CPU Ratio Setting: Auto
C1E Support: Enable
Hardware Prefetch: Enable
Adjacent Cache Line Prefetch: Enable
Intel Virtualization Tech: Enable
CPU TM Function: Enable
Execute Disable Bit: Enable
Intel HT Technology: Enable
Active Processors: All
A20M: Disable
Intel C-State Technology: Enabled
   C-State = C7

Test each module singly in slot 2. Test one set of modules in the slot 2, 4 and 6. Boot to the Memtest CD and allow for two full passes. Shut down, remove the set and insert the second set and retest. Shut the system down and insert the second set of modules in the slot 1, 3 and 5. Boot to the memtest CD and allow for two full passes.




when you have a chance could someone confirm my thoughts as well as tell me the bios settings appropriate for this mb/mem/cpu combo?


thank you

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Yes, it should be noted that you might well have to drop the memory speed to 1066Mhz if the 1333Mhz does not work.


Test at 1333Mhz first though.


These settings Derek gave should be fine for that combination. Also keep in mind that this thread is about 2 kits / 12GB of this memory, not a single kit of 3 modules.
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