GA-7NNXP or 7N400 ... dual channel mem with four dimms

Discussion in 'Gigabyte' started by Harry Muscle, Jul 24, 2003.

  1. Harry Muscle

    Harry Muscle Guest

    Reading over reviews, I've noticed that the Gigabyte GA-7NNXP and GA-7N400
    have four dimm slots. Does anyone know if dual channel operation is
    possible with all four slots filled? From what I recall, the NForce chipset
    only support 3 dimm slots, which means that the only way to have dual
    channel is to fill just two of them. To confuse things even more, I've read
    a review or two that say, yes dual channel works with four dimms, but
    other's that say there is a error correction to the manual, stating that
    dual channel works with only two dimms.

    Gigabyte tech support hasn't been any help, since I'm still waiting for a
    response (it's been days). So I'm just wondering if anyone here might be
    able to clarify things.

    Harry Muscle, Jul 24, 2003
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  2. Harry Muscle

    Elmo Guest

    I have the 7NNXP. Dual channel will work with 3 or 4 modules if you mix both
    double and single sided dimms. This is from page 21 of Gigabytes manual. Its
    rather confusing, it lists the following as working:

    Dual Channel Technology (DS: Double Side, SS: Single Side)
    ------------------------DIMM 1------DIMM 2-----DIMM 3-----DIMM 4
    2 Memory Modules----DS/SS--------Empty--------DS/SS--------Empty
    2 Memory Modules-----Empty--------DS/SS-------Empty---------DS/SS
    2 Memory Modules----DS/SS--------Empty--------Empty-----------DS
    2 Memory Modules-----Empty--------DS/SS-------Empty-----------DS
    3 Memory Modules----DS/SS---------DS/SS-------DS/SS--------Empty
    3 Memory Modules----DS/SS---------DS/SS-------Empty-----------DS
    3 Memory Modules-----Empty---------DS/SS--------SS-------------SS
    3 Memory Modules----DS/SS---------Empty---------SS-------------SS
    4 Memory Modules----DS/SS---------DS/SS--------SS-------------SS

    You can download the manual in Adobe Acrobat reader (.pdf) format from
    Gigabytes website if you need a copy. The GA-7NNXP is a great board. I have
    an XP 3000+ Barton native 333MHz running at 11X230 for 2530MHz and 460FSB at
    1.90v core. This board has a few drawbacks, no mounting holes around the CPU
    socket and very limited space around the CPU. I am using a Swiftech MCW5000
    water block on mine and it fits with room to spare.
    Elmo, Jul 25, 2003
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  3. Same here with ga-7N400 Pro..Great board...Same mem. config..It works with 2
    (1st-3rd), 3 (1st,2nd,3rd or 4th) and 4 sticks...Only ONE con : One
    capacitor is bit too close to cpu socket.Still ,Volcano 11+ fits nicely..
    Mr SUHA SIRMAKES, Jul 25, 2003
  4. Harry Muscle

    S.Heenan Guest

    Does the BIOS have generous overclocking adjustments ? ie manual Vcore
    increase/decrease, manual AGP voltage increase/decrease, etc.
    S.Heenan, Jul 25, 2003
  5. Yes and plenty more...I've been using mine for about 2 months now with 2500+
    @ 3200+ (1.67v @ 1.725v)no problem at all.This is a burger with the lot.Very
    stable at all speeds and configuration with decent cooling.I'm using Volcano
    11+ .I ran 3D 2003 three times in a row , played quake for 1/2 hr. , colin
    mc rae for 1/2 hr , vietcong for 1/2 hr then ran the 2003 again then pc sys
    mark 2002 (all at 1024x768x32b), at the end sys temp was 31* and cpu 38*
    (room temp was 24*).So really i'm very happy with it.Cost me AUD
    $195.Worth every cent.
    Mr SUHA SIRMAKES, Jul 27, 2003
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