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Thread: GA-X48T-DQ6 stability with 2x2GB




  1. #21

    Default Re: GA-X48T-DQ6 stability with 2x2GB

    Oh Yes,
    You are right!
    To test this I've decreased CPU Host Frequency to 375 MHz and using
    CPU Clock ratio = 8 +0.5 got CPU Frequency = 3.18 GHz (375x8.5).
    Then SPD set to 4.00B got me Memory Frequency = 1500 MHz.
    Memoty Timig = 7-7-7-20 with all Advanced Timing Control paramas set to Auto
    and it booted immediately with DDR3 OverVoltage as low as +0.15V
    and MCH OverVoltage at +0.20V. Rest overvoltages =Normal.
    7-7-7-20 works stable now, so Yes, there is an issue with Quads at 1600 MHz.
    Tonight I'll test if stable but for now going that path would you tell
    how high FSB may go (380/385/390 MHz) and should I continue to use
    SPD multiplier 4.00B or should go for 4.00D instead.
    At least I need MCH = +0.20V (no more, no less), but what about
    DDR3 Overvoltage - looks strange +0.15V to work with 7-7-7-20.
    Maybe +0.20V wouldn't hurt.

    Thanks again.
    That was important achievement.

  2. #22

    Default Re: GA-X48T-DQ6 stability with 2x2GB

    And also.
    From performance perspective 7-7-7-20 @ 1500 MHz should be better than
    8-8-8-24 @ 1600 MHz or I'm mistaken? Could help decrease NB temps as well.

  3. #23
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-X48T-DQ6 stability with 2x2GB

    Ahh great to see you got that tested! So, now you can see just how close to 1600 you can get! Mmmm You may have to use D multi, but maybe not.. If you seem to hit a wall at 380+ try the D multi and see if it helps. If not you may have just found the limit that you can get close to 1600 with

    Glad you are getting somewhere with this! Good luck and have a happy Turkey day!

    That may or may not be better, only a test would tell, but since you can't you will just have to lie to yourself! HAHA

    Ya, it will for sure decrease NB temps a bit too

  4. #24

    Default Re: GA-X48T-DQ6 stability with 2x2GB

    Hi,
    Sorry didn't respond earlier.
    Seeing that 7-7-7-20 and 8-8-8-24 both work now I had to finish my PC assembly
    and focus on other components. Honestly, I see no performance difference -
    maybe lower latency could compensare the fsb frequency drop.
    Or as you put it - it's my imagination ;)
    Anyway prime95 worked 8 hrs with the new settings (1500 @ 7-7-7-20) with no errors.
    Will make 24 hrs test soon to be completely sure.
    I'm affraid it will be very difficult to mount NB fan - can't fix it on the top (no airflow there). The Gigabyte NB heatsink is too low to mount proper fan on the side as well,
    so less fsb can be a good thing at the moment.
    Also I'm waiting for my new GA-EP45T-UD3P mobo.
    Let's see how that extra copper will help.

    For now - happy holidays and my best regards,
    Comers

  5. #25
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    Lsdmeasap is offline GIGABYTE Guru
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