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pc wont boot with dual channel ram

i just rebuilt my pc and my pc is not booting in dual channel configuration.
my pc is not booting when-
1.rams on slot 1 and 3 or 2 and 4 (dram and cpu debug led blinks in a jumping pattern 1st cou them dram again cpu then dram this goes forever)
and my pc is booting with -
1. single ram working in every slot , rams working in slot 1 and 2 , 3 and 4 , 1 and 4 , 2 and 3.

here is my pc specs
cpu - 7700k
ram - gskill trident z 3200
vga - intel hd
motherboard - msi z270 gaming pro carbon
Reply to skpatel71
13 answers Last reply Best Answer
More about wont boot dual channel ram
  1. When you have have both ram sticks in, can you get into the bios?

    If you can, make sure the correct RAM timings and voltage are applied for your type of memory
    Reply to blockhead78
  2. blockhead78 said:
    When you have have both ram sticks in, can you get into the bios?

    If you can, make sure the correct RAM timings and voltage are applied for your type of memory


    first boot after rebuilt - pc stuck on loop of booting for 1 sec then turning off itself then starting again itself ( all four ram , cpu vga and boot debug led was blinking one after another during the loop ).
    then i tried it with 1 ram and it booted successfully but then i tried again with 2 rams in dual channel mode it stuck on black screen cant reach bios and then i tried with 2 rams in slots next to each other and its working
    Reply to skpatel71
  3. so when it does boot, what RAM settings are applied in your bios?
    Reply to blockhead78
  4. blockhead78 said:
    so when it does boot, what RAM settings are applied in your bios?


    when it boot i went to bios and applied factory default setting then tried again with dual channel still same result.
    Reply to skpatel71
  5. when you've used both sticks on their own, do they run at their manufacturer recommended timings/voltage ok?

    and with those settings does each stick on its own pass through a mem test ok?
    Reply to blockhead78
  6. blockhead78 said:
    when you've used both sticks on their own, do they run at their manufacturer recommended timings/voltage ok?

    and with those settings does each stick on its own pass through a mem test ok?


    yes everything they both are running at their manufacturer recommended timings/voltage and each stick pass through a mem test on its own
    Reply to skpatel71
  7. Best answer
    in that case I'd check if there's a newer bios available for your mobo

    if that doesn't improve things, it sounds like you might have a bent pin on the mobo socket.

    even if just one pin is slightly bent it can effect memory working properly.

    So if the bios update doesn't work, or it's already up to date, then it would be best to remove the CPU and closely check the socket pins (magnifying glass if needed).
    Reply to blockhead78
  8. blockhead78 said:
    in that case I'd check if there's a newer bios available for your mobo

    if that doesn't improve things, it sounds like you might have a bent pin on the mobo socket.

    even if just one pin is slightly bent it can effect memory working properly.

    So if the bios update doesn't work, or it's already up to date, then it would be best to remove the CPU and closely check the socket pins (magnifying glass if needed).


    I have a pin I accidentally bended. I went for it and everything works but RAM slots 3 and 4 are not working.
    Is it worth the risk trying to bend the pin/s back just to achieve dual channel?
    Reply to marcosdipaolo
  9. do you need al 4 slots?

    If not, you could just run dual channel memory in slots 1 & 2

    Straightening the pin is not hard, you just need to be careful and take you time
    Reply to blockhead78
  10. blockhead78 said:
    do you need al 4 slots?

    If not, you could just run dual channel memory in slots 1 & 2

    Straightening the pin is not hard, you just need to be careful and take you time

    I don't need all of 4 slots right now, but probably in the future but i'll deal with the later.

    What do you mean i could achieve dual channel in slots 1 &2?

    When i mean only 1 & 2 are working i mean first and second starting counting form the processor to the side (not the MB manufacturer denomination which is alternate, DDR4_1, DDR4_3, DDR4_2, DDR4_4).
    Reply to marcosdipaolo
  11. ah my mistake, got ram slots mixed up in my head LOL

    yeah, you'd need to straighten the bent pins

    just take your time and be careful
    Reply to blockhead78
  12. blockhead78 said:
    ah my mistake, got ram slots mixed up in my head LOL

    yeah, you'd need to straighten the bent pins

    just take your time and be careful


    Made it!!!!!!!!!!!!!!

    bended the pins back and all four slots are working!!!

    got dual channel!!!!



    where is the button where i can give you 3 bazillions points for your trust!!!!!
    Reply to marcosdipaolo
  13. great news, glad it's fixed ;)
    Reply to blockhead78
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