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PC will not boot with 4 ram sticks

Discussion in 'Hardware' started by Honorforall, Feb 10, 2019.

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  1. Honorforall

    Honorforall Thread Starter

    Joined:
    Feb 10, 2019
    Messages:
    3
    I have a Z370 Aorus ultra gaming 2.0 motherboard with 2 8GB Corsair Vengeance rgb pro Ram installed in the 4 and 2 slots (channel A). Everything boots and the pc has been running fine for months. I recently purchased 2 more 8GB Ram stick that are identical to the ones installed. I installed them in the remaining slots, 3 and 1 (channel b), but the pc will not boot. It powers up for about 30 seconds, but the powers down and repeats. The monitor never turns on. All the RGB on the ram sticks work and are in sync. Please help.
     
  2. lunarlander

    lunarlander

    Joined:
    Sep 21, 2007
    Messages:
    9,479
    If you remove the new ram sticks, does the PC boot OK?
     
  3. Honorforall

    Honorforall Thread Starter

    Joined:
    Feb 10, 2019
    Messages:
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    Yes. The pc only boots with 2 ram sticks inserted. All 4 work as ive tested each one alone. and all slots work as I've also tested that.
     
  4. crjdriver

    crjdriver Moderator

    Joined:
    Jan 2, 2001
    Messages:
    38,119
    What bios are you running? There are bios updates that address boot issues.
    Next is your exact ram on the approved or qvl list on the support page for that board?
    Do you have xmp enabled and if so, what happens when you return the speed to stock ie 2133?
     
  5. Honorforall

    Honorforall Thread Starter

    Joined:
    Feb 10, 2019
    Messages:
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    I'm Using the F2 bios version from 2018/03/09. I've thought about updating the bios, but I know that it can be risky so I wanted to try other things first. My exact ram is on the approved list and it still won't boot with xmp or default 2133. Both work with just 2 sticks installed.
     
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