Motherboard Fault

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  1. Posts : 2,445
    Windows 10 Pro 64-Bit (1809)
       #1

    Motherboard Fault


    Hi All and sorry I have not been more active over the last few months.

    I need your help.

    I have today installed my new Noctua Chromax fans in my system and when I turned it on I got the "MEM OK" light showing (Solid Orange). Looking in the manual this indicates that a module is not seated correctly so I re-seated them all. Still the light shows. I used the MEM OK test function built in the board but still it shows and no boot. I pulled 1 stick out and it booted fine so I tested the other stick and again it booted fine.

    Only time the board boots is when only one stick is in the second closed slot to the CPU.

    I have checked all connections in and around the board and I have no knocked nor damaged the board in any way.

    I even re flashed the BIOS lol

    Any Ideas

    Thanks

    Andrew

    Update: After some more testing the system will only boot with One stick in the second slot (any of the Two sticks)
    Last edited by worf105; 15 Dec 2017 at 17:58.
      My Computers


  2. Posts : 7,710
    3-Win-7Prox64 3-Win10Prox64 3-LinuxMint20.2
       #2

    Hi,
    Bummer did you try without the new fans :/

    Don't have any spare ram around you can test with ?
      My Computers


  3. Posts : 27,437
    Windows 10 Pro x64 Version 21H1
       #3

    Interesting. With one stick you are supposed to use the furthest slot and then with two the second closest.

    Attachment 168354

    I noticed you pushed Mem OK. Did you push until LED started to flash?

    Attachment 168355
      My Computer


  4. Posts : 1,096
    win 10
       #4

    Try a different bios then the one you are using maybe. CMOS reset, pull battery from board for a few mins.
      My Computer


  5. Posts : 16,064
    Windows 11 Pro X64
       #5

    That should do it I hope
      My Computers


  6. Posts : 2,445
    Windows 10 Pro 64-Bit (1809)
    Thread Starter
       #6

    ThrashZone said:
    Hi,
    Bummer did you try without the new fans :/

    Don't have any spare ram around you can test with ?
    Tried that @ThrashZone and no spare RAM about.
      My Computers


  7. Posts : 7,710
    3-Win-7Prox64 3-Win10Prox64 3-LinuxMint20.2
       #7

    Hi,
    I believe the prime has a reset button which does the same thing as CMOS reset along with the ram ok button.
      My Computers


  8. Posts : 2,445
    Windows 10 Pro 64-Bit (1809)
    Thread Starter
       #8

    Caledon Ken said:
    Interesting. With one stick you are supposed to use the furthest slot and then with two the second closest.

    Attachment 168354

    I noticed you pushed Mem OK. Did you push until LED started to flash?

    Attachment 168355
    @Caledon Ken Only boots with the single module in DIMM_B2 only. but will try it all again to be sure.

    When I used the Mem OK button the LED flashed for some time and then returned to a solid light. Tried this several times.
      My Computers


  9. Posts : 2,445
    Windows 10 Pro 64-Bit (1809)
    Thread Starter
       #9

    doorules said:
    Try a different bios then the one you are using maybe. CMOS reset, pull battery from board for a few mins.
    Tried the older 0430 Bios and the same results flashed the newest 0605 but still the same. Battery been out for over 20 mins on several occasions during but no success.
      My Computers


  10. Posts : 2,445
    Windows 10 Pro 64-Bit (1809)
    Thread Starter
       #10

    Update:

    • I have stripped this PC down and checked any and all possible broken connections and tracks and the like and none was found.
    • Eliminated the chance of shorts in the system and am confidant that their are none.
    • Looked at the DIMM slots to see if any connection was damaged and none was found.
    • Delidded the CPU again and cleaned and relidded also checking that their was no bent of fault in the CPU substrate, none found.
    • Flashed several older BIOS's (Known to work) but none solved problem.
    • Tested the RAM modules in each slot one at a time and any of the two stick will only boot the PC in slot 2 and no combination using both stick will pass the BIOS Mem test so no boot.


    My conclusion is that something went wrong with the motherboard.
      My Computers


 

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