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  1. #1
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    STRIX Z370-E NO POST Boot LED Green

    I've got the following kit I'm trying to put together.

    • ASUS ROG STRIX Z370-E
    • Coffee Lake Intel Core i5-8600K
    • G.SKILL RIPJAW 16GB (2 x 8GB) DDR4 3200 (F4-3200C16D-16GVKB)
    • EVGA SUPERNOVA 750 G3
    • SAMSUNG EVO 250GB M.2 SSD
    • COOLMASTER HYPER 212 EVO


    My first RMA'd Z370-E would not POST with two sticks of DRAM (just one) and would stop at DRAM Orange LED staying on with two sticks inside. At least I had BIOS with one stick of DRAM...

    Now my second Z370-E board worked directly out of the box for only two boots with just CPU, 2xDRAM, PSU, and SSD installed. Decided things were looking good so I built the remaining inside the case. I can no longer enter BIOS. At one point I was still able to install Ubuntu on the M.2 SSD and boot into it but this is no longer the case. Now the green BOOT LED stays on with a single stick of DRAM now. Two sticks and I get the Orange LED staying on. Almost sounds like the BIOS is fried/missing.

    Today I've got a pair of G.SKILL TridentZ RGB Series 16GB (2 x 8GB) (F4-3200C16D-16GTZR) arriving and hope to try that before RMA'ing my second board.

    Also, I've noticed quite a lot of pressure screwing the HS in place over top the CPU. Since the second board worked WITHOUT the cooler for two boots, I'm wondering if that is the issue. I've tried resetting CMOS without battery for >24hr as well.

    This is ridiculous and something I've never experienced in my life. Granted, this is my first build in almost 10 years, things have changed, but not as much as that I don't know what I'm doing.

    Anyway, any help would be much appreciated. I'd really like to get this board working but sadly it will be my last ASUS board if it is returned.

  2. #2
    ROG Guru: Brown Belt Array NemesisChild PC Specs
    NemesisChild PC Specs
    MotherboardASUS Maximus X Hero (WI-FI AC)
    ProcessorIntel i7 8700K
    Memory (part number)G.Skill F4-3600C16D-16GTZR
    Graphics Card #1Nvidia GTX 1070 Ti FE
    Graphics Card #2Nvidia GTX 1070 Ti FE
    MonitorASUS ROG Swift PG278Q
    Storage #1Samsung 970 PRO 512GB NVMe M.2
    Storage #2WD Black 2TB 7200 RPM 64MB Cache
    CPU CoolerNZXT Kraken X42
    CaseCooler Master HAF 932 Advanced
    Power SupplyEVGA SuperNova 1200 P2
    Keyboard Logitech G910 Orion Spark
    Mouse Logitech G703 Wireless
    Headset Logitech G Pro
    Mouse Pad SteelSeries
    OS Windows 10 Home x64 (UEFI)
    Network RouterLinksys WRT1900AC
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    Welcome to the forum!

    Are you saying that you tried to post without a CPU cooler installed?

    There shouldn't be much resistance or "pressure" when tightening down a HS. I would check the CPU socket closely for bent or broken pins.
    Intel i7 8700K@ 5.2GHz (Delidded)
    ASUS Maximus X Hero (Bios 1801)
    NZXT Kraken X42
    G.Skill TridentZ@ 4000MHz CL16 2x8GB
    SLI: 2x Nvidia GTX 1070 Ti FE@ 2025/2025MHz
    OS: Samsung 970 PRO 512GB NVMe M.2
    Storage: Samsung 960 EVO 500GB NVMe M.2
    Storage: 2x Samsung 850 EVO 500GB
    Storage: WD Black 7200 RPM 64MB Cache 2TB
    EVGA SuperNova 1200 P2
    Cooler Master HAF 932 Advanced

  3. #3
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    Quote Originally Posted by NemesisChild View Post
    Welcome to the forum!
    Thanks!

    Quote Originally Posted by NemesisChild View Post
    Are you saying that you tried to post without a CPU cooler installed?
    I first tested the second board without the CPU cooler just to see if it would POST and enter BIOS. I didn't run for more than maybe a 1 minute or so. I was able to POST and enter BIOS successfully twice which included both sticks of DRAM. The only thing I did after those first tests was install the CPU cooler and fastened the board to the case, otherwise I'm not sure what the difference would have been on my end.

    There's some compatibility issue or BIOS issue. I'm honestly puzzled, there isn't much I changed between various states finally failing. At one point I had Ubuntu running without any access to BIOS which is truly bizarre to me.

    Also, I should mention, BIOS was updated to latest when I got both boards.

  4. #4
    ROG Guru: Brown Belt Array NemesisChild PC Specs
    NemesisChild PC Specs
    MotherboardASUS Maximus X Hero (WI-FI AC)
    ProcessorIntel i7 8700K
    Memory (part number)G.Skill F4-3600C16D-16GTZR
    Graphics Card #1Nvidia GTX 1070 Ti FE
    Graphics Card #2Nvidia GTX 1070 Ti FE
    MonitorASUS ROG Swift PG278Q
    Storage #1Samsung 970 PRO 512GB NVMe M.2
    Storage #2WD Black 2TB 7200 RPM 64MB Cache
    CPU CoolerNZXT Kraken X42
    CaseCooler Master HAF 932 Advanced
    Power SupplyEVGA SuperNova 1200 P2
    Keyboard Logitech G910 Orion Spark
    Mouse Logitech G703 Wireless
    Headset Logitech G Pro
    Mouse Pad SteelSeries
    OS Windows 10 Home x64 (UEFI)
    Network RouterLinksys WRT1900AC
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    I'm surprised that it didn't shutdown after a few seconds, you were lucky (or maybe not). I wouldn't suggest doing it again.

    Sounds like your problem happened after you installed the CPU cooler. You definitely need to check the socket for bent or broken pins.
    Intel i7 8700K@ 5.2GHz (Delidded)
    ASUS Maximus X Hero (Bios 1801)
    NZXT Kraken X42
    G.Skill TridentZ@ 4000MHz CL16 2x8GB
    SLI: 2x Nvidia GTX 1070 Ti FE@ 2025/2025MHz
    OS: Samsung 970 PRO 512GB NVMe M.2
    Storage: Samsung 960 EVO 500GB NVMe M.2
    Storage: 2x Samsung 850 EVO 500GB
    Storage: WD Black 7200 RPM 64MB Cache 2TB
    EVGA SuperNova 1200 P2
    Cooler Master HAF 932 Advanced

  5. #5
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    Quote Originally Posted by NemesisChild View Post
    Sounds like your problem happened after you installed the CPU cooler.
    Maybe with the second board. Consider also that I had an extremely similar issue with the first board.

    Quote Originally Posted by NemesisChild View Post
    You definitely need to check the socket for bent or broken pins.
    I just checked and there are no broken or bent pins, and the CPU pads look fine to me.

  6. #6
    Administrator Array Silent Scone@ASUS's Avatar
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    I would remove the motherboard from the enclosure if you haven't done so already, and make sure you're not overtightening the CPU cooler. You should only have to tighten until you feel resistance.

    It's possible you have overtightened the motherboard standoff screws also, so test outside of the enclosure once again. As NemesisChild has rightly said, you shouldn't power up the system without the CPU cooler. Although you should have hit TJMAX (resulting in the system shutting off) it's still possible to damage the CPU if too nonchalant.

  7. #7
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    Quote Originally Posted by Silent Scone View Post
    I would remove the motherboard from the enclosure if you haven't done so already, and make sure you're not overtightening the CPU cooler. You should only have to tighten until you feel resistance.
    Understood, especially not to overtighten and to cross screw in the HS. But I haven’t pulled this second board yet so I’ll do that and report back.

    Since Amazon lost my DRAM shipment I’ve reordered an entire new set of gear besides my CPU (at least the usual offenders).

    • ASUS ROG Maximus X Hero
    • G.SKILL TridentZ RGB Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200 (PC4 25600)
    • NZXT Kraken X52


    Guess we’ll find out a bit more later in the week if not next.

  8. #8
    ROG Guru: Brown Belt Array NemesisChild PC Specs
    NemesisChild PC Specs
    MotherboardASUS Maximus X Hero (WI-FI AC)
    ProcessorIntel i7 8700K
    Memory (part number)G.Skill F4-3600C16D-16GTZR
    Graphics Card #1Nvidia GTX 1070 Ti FE
    Graphics Card #2Nvidia GTX 1070 Ti FE
    MonitorASUS ROG Swift PG278Q
    Storage #1Samsung 970 PRO 512GB NVMe M.2
    Storage #2WD Black 2TB 7200 RPM 64MB Cache
    CPU CoolerNZXT Kraken X42
    CaseCooler Master HAF 932 Advanced
    Power SupplyEVGA SuperNova 1200 P2
    Keyboard Logitech G910 Orion Spark
    Mouse Logitech G703 Wireless
    Headset Logitech G Pro
    Mouse Pad SteelSeries
    OS Windows 10 Home x64 (UEFI)
    Network RouterLinksys WRT1900AC
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    Quote Originally Posted by justin129 View Post
    Understood, especially not to overtighten and to cross screw in the HS. But I haven’t pulled this second board yet so I’ll do that and report back.

    Since Amazon lost my DRAM shipment I’ve reordered an entire new set of gear besides my CPU (at least the usual offenders).

    • ASUS ROG Maximus X Hero
    • G.SKILL TridentZ RGB Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200 (PC4 25600)
    • NZXT Kraken X52


    Guess we’ll find out a bit more later in the week if not next.
    Hopefully the CPU wasn't damage due to extreme thermal exposure.

    Good luck!
    Intel i7 8700K@ 5.2GHz (Delidded)
    ASUS Maximus X Hero (Bios 1801)
    NZXT Kraken X42
    G.Skill TridentZ@ 4000MHz CL16 2x8GB
    SLI: 2x Nvidia GTX 1070 Ti FE@ 2025/2025MHz
    OS: Samsung 970 PRO 512GB NVMe M.2
    Storage: Samsung 960 EVO 500GB NVMe M.2
    Storage: 2x Samsung 850 EVO 500GB
    Storage: WD Black 7200 RPM 64MB Cache 2TB
    EVGA SuperNova 1200 P2
    Cooler Master HAF 932 Advanced

  9. #9
    ROG Guru: White Belt Array mcleod52 PC Specs
    mcleod52 PC Specs
    Laptop (Model)n/a
    MotherboardASUS ROG Maximus IX Hero
    ProcessorIntel Core i5-7600K Kaby Lake
    Memory (part number)G.SKILL TridentZ RGB Series 16GB
    Graphics Card #1GIGABYTE GeForce GTX 1060 Windforce
    MonitorLG 27UD69-W
    Storage #1Plextor M8Pe M.2 2280 256GB NVMe
    Storage #2Samsung SSD 850 EVO
    CPU CoolerNZXT Kraken X52
    CasePhantek P400S
    Power SupplyEVGA SuperNOVA 550 G2
    Keyboard Logitech G610 Orion Red
    Mouse ASUS ROG Gladius II
    Headset Bloody M660 MOCI
    Headset/Speakers Lepai LP-188HA + Polk Audio RTiA3's & PSW 303
    OS Windows 10 64 bit

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    I'd upgrade the M2 drive to a 500 GB one since it quickly fills up, or has for me. Now I'm looking to migrate things from my 256 GB to a new 500GB one.

    Stew

  10. #10
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    Quote Originally Posted by mcleod52 View Post
    I'd upgrade the M2 drive to a 500 GB one since it quickly fills up, or has for me. Now I'm looking to migrate things from my 256 GB to a new 500GB one.
    That’s good to keep in mind. I’m hoping to only boot the OSes from the M.2 and have several other 500GB SATA SSDs to use for more storage.

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