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Thread: X48-DS5 + Corsair Dominator PC2-8500




  1. #1
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    Default X48-DS5 + Corsair Dominator PC2-8500



    Alright so, here is the thing.

    This system is failing Memtest+ on test 7, and I cannot tell whether the ram is to blame, or the board.

    I'm using a Corsair Dominator 2GBx2 PC2-8500 kit, it's running at it's rated speed, and it's rated timings.

    When I test the the sticks individually in single channel mode, everything is golden.

    But when I throw them together in dual channel mode, things get a little hairy. I've gotten the same results running this Q6600 stock. The thing that really bothers me if that I have noticed absolutely no instability so far. But everyone I turn to says even a single error is "game over".

    But as I said, I have no way of telling whether the board is to blame, or the ram is to blame.

    -SnuffleKitty
    Last edited by SnuffleKitty; 10-06-2008 at 10:10 AM.

  2. Default Re: X48-DS5 + Corsair Dominator PC2-8500

    Pretty sure that your board's DDR voltage by default is 1.8v (I believe all boards are 1.8v). Check the voltage requirement of your memory. I'm guessing that it's at least 2.0v which means you would have to increase the voltage at least +.20v in the M.I.T. section of the BIOS. While you're there and since your running 2 x 2GB modules you might increase the MCH voltage +.20v.

    If your memory is failing MemTest and all your timings are stock, then, not having the proper voltage settings is the most likely cause.

    Give it a shot
    GA P35 DQ6 rev. 1.0, 2x2GB Mushkin XP2 Ascents, 2x2GB Mushkin XP2's DDR2-1066 PC2-8500, Intel Core 2 DUO E8600, 3.33Ghz with Gigabyte CPU Cooler, PNY GeForce 8800 GTS, Antec 900 Gaming Case and Antec True Power Trio 650w PSU, Hauppauge HVR 1600 TV Tuner, old Sony CD/RW that still kicks butt, Sony external DVD, Smart Card Reader, 4 Western Digital Caviar HDD's: 80Gb, 120Gb(usb,external, swap), 160Gb, 250Gb and 320Gb.

    Running it all with Windows XP Pro SP3, Perry Mason and Della Street. Paul Drake's out on assignment. He's helping me locate 64-bit drivers for XP Pro x64 Edition that I'm working with now.


  3. #3
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    Default Re: X48-DS5 + Corsair Dominator PC2-8500

    This ram is rated at 1066 @ 2.1v.

    I've had the voltage set at +0.30, which places it at roughly 2.135v, which is about as close as I can get without going under.

    Something worth noting is this.

    I've run 3 individual passes on both stick...individually.

    Stick 1 passes all three passes.

    Stick 2 passed pass 1 and pass 3, but failed on test 7 on pass 2.

    So, am I to assume that the problem lies with Stick 2? What's with the inconsistencies between passes 1,3 and pass 2? Shouldn't the ram have errors all the time, or not at all?

    -SnuffleKitty

  4. Default Re: X48-DS5 + Corsair Dominator PC2-8500

    DDR voltage looks OKAY.

    You forgot about the MCH voltage. Even when running 1 stick of 2GB memory, MCH voltage should be increased +.1 volt. Wouldn't hurt to go up to +.2 volts in your case with 2 x 2GB. Also good idea to increase FSB voltage at least +.10, even +.20 since it looks like your overclocking your FSB anyways.

    I know..... all these different test failure patterns can be confusing. If your memory is running unstable it can be unpredictable as well when being stress tested.



    Last edited by DavidDavisLeeSomething; 10-06-2008 at 12:33 PM.
    GA P35 DQ6 rev. 1.0, 2x2GB Mushkin XP2 Ascents, 2x2GB Mushkin XP2's DDR2-1066 PC2-8500, Intel Core 2 DUO E8600, 3.33Ghz with Gigabyte CPU Cooler, PNY GeForce 8800 GTS, Antec 900 Gaming Case and Antec True Power Trio 650w PSU, Hauppauge HVR 1600 TV Tuner, old Sony CD/RW that still kicks butt, Sony external DVD, Smart Card Reader, 4 Western Digital Caviar HDD's: 80Gb, 120Gb(usb,external, swap), 160Gb, 250Gb and 320Gb.

    Running it all with Windows XP Pro SP3, Perry Mason and Della Street. Paul Drake's out on assignment. He's helping me locate 64-bit drivers for XP Pro x64 Edition that I'm working with now.


  5. #5
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    Default Re: X48-DS5 + Corsair Dominator PC2-8500

    Now this is something new.

    The "faulty" stick just passed 5 passes without error...

    I've increased the MCH and the FSB by 0.1v.

    We'll see what Memtest thinks of that ;3.

    -SnuffleKitty

  6. Default Re: X48-DS5 + Corsair Dominator PC2-8500

    5 Standard test passes in MemTest takes over ...uh ...jeesh...I forgot...damn...roughly...30~40 minutes per pass....times 5 passes = 200 minutes....yeah...3 hours... Duh.

    Did you test it on Standard or did you run individual tests that take 5 to 10 minutes?

    Did that "faulty stick" pass before you upped the MCH/FSB voltages?
    GA P35 DQ6 rev. 1.0, 2x2GB Mushkin XP2 Ascents, 2x2GB Mushkin XP2's DDR2-1066 PC2-8500, Intel Core 2 DUO E8600, 3.33Ghz with Gigabyte CPU Cooler, PNY GeForce 8800 GTS, Antec 900 Gaming Case and Antec True Power Trio 650w PSU, Hauppauge HVR 1600 TV Tuner, old Sony CD/RW that still kicks butt, Sony external DVD, Smart Card Reader, 4 Western Digital Caviar HDD's: 80Gb, 120Gb(usb,external, swap), 160Gb, 250Gb and 320Gb.

    Running it all with Windows XP Pro SP3, Perry Mason and Della Street. Paul Drake's out on assignment. He's helping me locate 64-bit drivers for XP Pro x64 Edition that I'm working with now.


  7. #7
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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  8. Default Re: X48-DS5 + Corsair Dominator PC2-8500

    I was just getting ready to tell Snuffle to raise the MCH voltage some more. Just couldn't keep my eyes open any longer.

    Yeah...especially since she's got a 25% overclock on the FSB.
    GA P35 DQ6 rev. 1.0, 2x2GB Mushkin XP2 Ascents, 2x2GB Mushkin XP2's DDR2-1066 PC2-8500, Intel Core 2 DUO E8600, 3.33Ghz with Gigabyte CPU Cooler, PNY GeForce 8800 GTS, Antec 900 Gaming Case and Antec True Power Trio 650w PSU, Hauppauge HVR 1600 TV Tuner, old Sony CD/RW that still kicks butt, Sony external DVD, Smart Card Reader, 4 Western Digital Caviar HDD's: 80Gb, 120Gb(usb,external, swap), 160Gb, 250Gb and 320Gb.

    Running it all with Windows XP Pro SP3, Perry Mason and Della Street. Paul Drake's out on assignment. He's helping me locate 64-bit drivers for XP Pro x64 Edition that I'm working with now.


  9. #9
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    Default Re: X48-DS5 + Corsair Dominator PC2-8500

    With both values increased by 0.1v, the two sticks in dual channel survived 7 passes (I let it run overnight), but went belly up on test 7 around the 8th pass.

    I'll try uping the MCH a bit more.

    -SnuffleKitty

  10. #10
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: X48-DS5 + Corsair Dominator PC2-8500

    1.25 MCH should be good, sounds strange but you may also want to test less then default as well

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