Please help me clock my DDR3 ram.

Hi, I recently purchased the following.
GIGABYTE GA-770TA-UD3
AMD ATH II X3 435 AM3
GSKILL F3-12800CL7D-4GBRM (2X2GB)
SAPPHIRE HD4850 512M

I cannot seem to get the clocking for the ram right in the bios.
I tried changing the timings 7-8-7-24 2N and voltage to 1.6 with no luck.

G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL7D-4GBRM
Cas Latency: 7
Voltage: 1.65V
Multi-channel Kit: Dual Channel Kit
Timing: 7-8-7-24-2N
Model #: F3-12800CL7D-4GBRM
Item #: N82E16820231303

What should I try next?
7 answers Last reply
More about please clock ddr3
  1. What is the speed currently set to? I'd suggest trying lower in the 1066 or 1333 range at least at first (though there is not a ton of benefit going over 1333).
  2. Did you set the voltage to 1.6 or 1.65? They are technically spec'd for 1.65, so I'd give that a try. And what is meant by changing the timings with no luck?
  3. Gamerx07 said:
    Hi, I recently purchased the following.
    GIGABYTE GA-770TA-UD3
    AMD ATH II X3 435 AM3
    GSKILL F3-12800CL7D-4GBRM (2X2GB)
    SAPPHIRE HD4850 512M

    I cannot seem to get the clocking for the ram right in the bios.
    I tried changing the timings 7-8-7-24 2N and voltage to 1.6 with no luck.

    G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL7D-4GBRM
    Cas Latency: 7
    Voltage: 1.65V
    Multi-channel Kit: Dual Channel Kit
    Timing: 7-8-7-24-2N
    Model #: F3-12800CL7D-4GBRM
    Item #: N82E16820231303

    What should I try next?

    I got the same exact RAM and I am able to set it at 1600Mhz & 7-8-7-24 and even able to set it at 1T. But I got an X3 720BE and an MSI 790FX.
    Could it be possible that the Memory controller of the X3 435 is holding the RAM back?
  4. It may be the uncore in the chip, it may be the interconnects, or it could be the RAM itself.

    I've got that same RAM, and I was able to run them at a bit tighter timings than you at 1.5v, but I haven't played around with it any since I overclocked my Xeon.
  5. EXT64 said:
    What is the speed currently set to? I'd suggest trying lower in the 1066 or 1333 range at least at first (though there is not a ton of benefit going over 1333).



    If I look in CPU-Z the Memory tab sais.
    DRAM Freq 669.6 MHz
    FSB DRAM 3:10
    CL 9 clocks
    tRCD 9 clocks
    Trp 9 clocks
    tRAS 24 clocks
    tRC 22 clocks
    CR 1T

    The SPD tab sais the max bandwidth is PC3-10700 (667MHz)
  6. jedimasterben said:
    Did you set the voltage to 1.6 or 1.65? They are technically spec'd for 1.65, so I'd give that a try. And what is meant by changing the timings with no luck?


    In the BIOS DIMM settings I changed it from 9, 9, 9, 25 to 7, 8, 7, 24.
    I also changed the voltage to 1.6. I do not think 1.65 was an option in the BIOS.
  7. In the BIOS, DRAM config.
    I changed the DDR3 timings to manual.
    Then I changed the settings from 9,9,9,25 to 7,8,7,24. I didnt change any of the trfc's, delays or times.
    Then I set the system voltage to manual.
    Changed the DRAM voltage control to 1.6. I also tried 1.62 and 1.64.
    1.66 was RED so i didnt try that.
    The lowest value was 1.5.
    None of these settings worked for me but I am not sure if I did anything right!


    Update. This is Gamerx07. I forgot about that account info long ago but work PC must of had the info saved.
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