Evga 780i problem

Discussion in 'CPU, Motherboards and Memory' started by rulsinD, Mar 6, 2009.

  1. rulsinD

    rulsinD Geek Trainee

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    I'm building a system with q6600 and 8gigs of ram on this board with a 750 corsair tx power supply and the system doesn't boot with more than 2 gigs of ram in a single slot.
    I get a blue screen error message with irql not less or equal message.
    0x0000007e
     
  2. Ferg

    Ferg Manbearpig

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    Does that mobo definitely support that brand and model of ram?
    Also is your bios up to date?
     
  3. rulsinD

    rulsinD Geek Trainee

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    Yeah, I updated the bios just the other day ago, and the ram is only list of recommended types ocz 6400 ddr2 sli.
    The update didn't help.
     
  4. Ferg

    Ferg Manbearpig

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    Sorry don't quite follow you there - is it supported or not? Are any listed supported at 8gb?

    I know I can't go above 4gb when I go for 1066 stuff as some weird incompatibility with my motherboard means you can only run dual channel and not fill all the slots. Maybe you are encountering a similar issue?

    Another thing if it's bluescreening is make sure you have your memory voltage set correctly in the bios - a lot of mobo manufacturers under-rate this default by quite a margin.
     
  5. rulsinD

    rulsinD Geek Trainee

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    Ummm, the model of ram is listed as one of recommended brands, and as far as it being an 8gig problem 4 gigs doesn't boot up either, tryed changing power supply got a 1st time boot up with all 8 gigs but since than same problem only one 2gig stick in any of the 4 slots. Mem test only fully responds with one 2gigs which it diagnoses working no problem, anymore than 2 gigs test pauses at 5 percent or so and nothing...
     
  6. rulsinD

    rulsinD Geek Trainee

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    ocz 6400 ddr2 ram
    q6600
    corsair tx750 watt
    evga 780i
     
  7. RHochstenbach

    RHochstenbach Administrator

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    How much RAM does your motherboard support? If the motherboard supports up to 8 GB, and you have 4 DIMM slots, you can't put more than 2 GB in each DIMM slot.
     
  8. rulsinD

    rulsinD Geek Trainee

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    Yeah two per slot
     
  9. RHochstenbach

    RHochstenbach Administrator

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    If each slot doesn't support more than 2 GB of RAM, that means that it won't boot properly. So you either need to get a different motherboard that supports more than 2 GB in each slot (very rare at the moment), or repace the ram with 4 2GB chips.
     
  10. rulsinD

    rulsinD Geek Trainee

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    Yes 4 2 gigs sticks one in each slot.
     
  11. Ferg

    Ferg Manbearpig

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    Did you check the voltages are set correctly for your brand of ram as I suggested?
     
  12. rulsinD

    rulsinD Geek Trainee

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    yes I've been trying that for a while nothing.
     
  13. Ferg

    Ferg Manbearpig

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    And you've rotated all the different ram sticks you have into that first slot to check each of them are ok?

    If so then its kinda gotta be the motherboard at fault then - weird one though.
     
  14. rulsinD

    rulsinD Geek Trainee

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    Ok thanks..
     

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