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  1. #1
    ROG Member Array Howard_Woodard PC Specs
    Howard_Woodard PC Specs
    MotherboardAsus ROG Maximus IX Hero
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    Memory (part number)Digital Storm DDR4 3000MHz 32GB (2X16GB) DS4U3000316G16 CL 16-18-18 Timing
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    Question Maximus IX not detecting RAM...

    I picked up a used mobo that I know was working when the guy removed it. I have it populated and powered up on my work table. It will not POST. It stays powered up with the CPU fan continuing to run but the status display reads "55" and the RAM led is on steady. I've tried the MEM-OK button but after it tries several configurations it too stops, again with status code "55" which means "Memory not installed". The RAM is firmly seated and I have cleaned and re-seated them a couple of times.

    There are two sticks of brand new RAM (p/n below) and I've tried them in A2+B2, A1+B1 and one stick in A1, then B1, then A2 and finally B2 with the same symptoms/outcome each time.

    I removed the CMOS battery and reinstalled it. Nothing changes - Memory not detected each time.

    The first entry below is from the QVL. The second is the RAM that I'm trying to use.

    (1) From QVL : G.SKILL F4-3000C16Q2-128GVKB(XMP)128GB (8x16GB) DS 16-18-18-38 1.35v
    (2) Installed: G.SKILL F4-3000C16D-32GVRB R (2x16GB) CL16-18-18-38 1.35v

    It looks to me like it should work just fine.

    I don't have ready access to other RAM right now so I can't try part swapping though what I've done with the two new sticks is parts swapping -- just with two unknown parts.

    Does anyone have any idea what is happening here?
    Click image for larger version. 

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    Last edited by Howard_Woodard; 04-07-2019 at 04:55 PM. Reason: Add pic...

  2. #2
    ROG Member Array Howard_Woodard PC Specs
    Howard_Woodard PC Specs
    MotherboardAsus ROG Maximus IX Hero
    ProcessorIntel i7-7700k
    Memory (part number)Digital Storm DDR4 3000MHz 32GB (2X16GB) DS4U3000316G16 CL 16-18-18 Timing
    Graphics Card #1AMD Radeon™ R9 Series Gaming Graphics Cards with High-Bandwidth Memory
    Monitor2 x HP w2007
    Storage #1Seagate 2TB Hybrid HDD
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    CPU CoolerCooler Master Hyper 212 EVO

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    I misled on symptoms...

    I must have been groggy when I tested. RAM is fine. A1 and A2 slots do not detect any RAM. B1 and B2 work fine. Now to try to figure that out...

  3. #3
    Administrator Array Silent Scone@ASUS's Avatar
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    Quote Originally Posted by Howard_Woodard View Post
    I must have been groggy when I tested. RAM is fine. A1 and A2 slots do not detect any RAM. B1 and B2 work fine. Now to try to figure that out...
    Hello, may possibly due to uneven mounting of the CPU. Remove the CPU cooler and reseat the CPU - check for any bent pins in the process. Finally, check for even mounting pressure when attaching the cooler. You may wish to check that the stand off screws are not overtightened surrounding both the CPU and the DIMM slots.

  4. #4
    ROG Member Array Howard_Woodard PC Specs
    Howard_Woodard PC Specs
    MotherboardAsus ROG Maximus IX Hero
    ProcessorIntel i7-7700k
    Memory (part number)Digital Storm DDR4 3000MHz 32GB (2X16GB) DS4U3000316G16 CL 16-18-18 Timing
    Graphics Card #1AMD Radeon™ R9 Series Gaming Graphics Cards with High-Bandwidth Memory
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    Thanks. That sounds promising and I'll try it when I get back home today. I'll update this thread afterwards.

    Howard

  5. #5
    ROG Member Array Howard_Woodard PC Specs
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    MotherboardAsus ROG Maximus IX Hero
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    Had one bent pin. The pin seems a bit “spongy” so it may not just be bent, it may be loose at the bottom. I don’t have the pinouts for the 1151 socket but I’d guess that pin relates to the A-channel memory controller.**

  6. #6
    Administrator Array Silent Scone@ASUS's Avatar
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    Quote Originally Posted by Howard_Woodard View Post
    Had one bent pin. The pin seems a bit “spongy” so it may not just be bent, it may be loose at the bottom. I don’t have the pinouts for the 1151 socket but I’d guess that pin relates to the A-channel memory controller.**
    Are you able to take a clear photo of the socket?

  7. #7
    ROG Member Array Howard_Woodard PC Specs
    Howard_Woodard PC Specs
    MotherboardAsus ROG Maximus IX Hero
    ProcessorIntel i7-7700k
    Memory (part number)Digital Storm DDR4 3000MHz 32GB (2X16GB) DS4U3000316G16 CL 16-18-18 Timing
    Graphics Card #1AMD Radeon™ R9 Series Gaming Graphics Cards with High-Bandwidth Memory
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    Hi and thanks for the question. I don't think my iPhone is gonna win any graphic fidelity awards but here are some attempts that actually do show the bent pin. I tried straightening it but it just settles back down. If it really is the problem I'm not sure whether it isn't pushing up enough to make contact with the cpu or if it is but its being pushed further "forward" and off the cpu contact.

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    Miniatura de Adjuntos Miniatura de Adjuntos IMG_4770(1).jpg  

    Last edited by Howard_Woodard; 04-09-2019 at 12:43 AM.

  8. #8
    ROG Member Array Howard_Woodard PC Specs
    Howard_Woodard PC Specs
    MotherboardAsus ROG Maximus IX Hero
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    Memory (part number)Digital Storm DDR4 3000MHz 32GB (2X16GB) DS4U3000316G16 CL 16-18-18 Timing
    Graphics Card #1AMD Radeon™ R9 Series Gaming Graphics Cards with High-Bandwidth Memory
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    Never found the problem. RMAing it back to Asus.

    Thanks all.

  9. #9
    Administrator Array Silent Scone@ASUS's Avatar
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    Hello,

    Hard to say from this, could be socket damage, might be something else. More often than not, it's CPU mounting pressure.

  10. #10
    ROG Member Array Howard_Woodard PC Specs
    Howard_Woodard PC Specs
    MotherboardAsus ROG Maximus IX Hero
    ProcessorIntel i7-7700k
    Memory (part number)Digital Storm DDR4 3000MHz 32GB (2X16GB) DS4U3000316G16 CL 16-18-18 Timing
    Graphics Card #1AMD Radeon™ R9 Series Gaming Graphics Cards with High-Bandwidth Memory
    Monitor2 x HP w2007
    Storage #1Seagate 2TB Hybrid HDD
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    CPU CoolerCooler Master Hyper 212 EVO

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    Btw, do you know what the pinouts are? *I’m curious as to what that pin is - 3rd from left and 3rd from bottom diagonally opposite the alignment corner.*

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