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  1. #31
    ROG Member Array Aurosonic PC Specs
    Aurosonic PC Specs
    Laptop (Model)ASUS G501VW
    MotherboardASUS ROG MAXIMUS APEX XI bios 0231
    ProcessorIntel i9-9900k delided 5200@1.35v LLC5
    Memory (part number)2x8gb G.Skill Trident Z RGB F4-4600C18D-16GTZR @ 4600Mhz 17-19-19-38 CR2
    Graphics Card #1Gigabyte AORUS GeForce RTX™ 2080 Ti XTREME WATERFORCE WB 11G @2100/8100
    Sound CardRME Fireface UC
    Monitor2x Asus PG278Q
    Storage #1M.2 Samsung 970 Pro 512gb
    Storage #2M.2 Samsung 970 Evo 2Tb
    CPU CoolerEK-Velocity RGB - Nickel / Custom Watercooling
    CaseCaseLabs SMA8 custom
    Power SupplyCORSAIR AX1500i custom cablemod
    Keyboard Steelseries APEX RAW
    Mouse Logitech G9x Laser
    Headset Sennheiser HD250
    Mouse Pad Zowie
    Headset/Speakers Blue Sky Mediadesk 2.1
    OS Windows 10 1809
    Accessory #1 MO-RA3 Pro 4x180 Radiator, 2xD5 pumps
    Accessory #2 Hardtubing 13/10 custom waterloop
    Accessory #3 Bitspower fittings
    Aurosonic's Avatar
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    Quote Originally Posted by Silent Scone@ASUS View Post
    Two DIMMs are a lot easier at the electrical level both on the CPU and the board. Obviously, it's not possible to test 4 modules at a given speed on the Apex .

    If I can source your kit, I'll post some results with the Formula XI.

    Yes, binning that many modules to work at frequency with enough guardband is tough. Which is why you won't find many.
    Yes, i know about 2 slots APEX. I'll be fine with 2x16 on APEX instead of 4x8 on Formula at same frequencies. Just hope it's not my IMC issues.

    Here's my results on Formula: https://imgur.com/a/eR4CWON
    Worked for 3 months till 1 of the sticks has died.
    9900k@5200@1.35v LLC5/Apex XI@0231/G-Skill F4-4600C18D-16GTZR/Aorus 2080ti xTream Wateblock@2100/8100

  2. #32
    ROG Member Array Aurosonic PC Specs
    Aurosonic PC Specs
    Laptop (Model)ASUS G501VW
    MotherboardASUS ROG MAXIMUS APEX XI bios 0231
    ProcessorIntel i9-9900k delided 5200@1.35v LLC5
    Memory (part number)2x8gb G.Skill Trident Z RGB F4-4600C18D-16GTZR @ 4600Mhz 17-19-19-38 CR2
    Graphics Card #1Gigabyte AORUS GeForce RTX™ 2080 Ti XTREME WATERFORCE WB 11G @2100/8100
    Sound CardRME Fireface UC
    Monitor2x Asus PG278Q
    Storage #1M.2 Samsung 970 Pro 512gb
    Storage #2M.2 Samsung 970 Evo 2Tb
    CPU CoolerEK-Velocity RGB - Nickel / Custom Watercooling
    CaseCaseLabs SMA8 custom
    Power SupplyCORSAIR AX1500i custom cablemod
    Keyboard Steelseries APEX RAW
    Mouse Logitech G9x Laser
    Headset Sennheiser HD250
    Mouse Pad Zowie
    Headset/Speakers Blue Sky Mediadesk 2.1
    OS Windows 10 1809
    Accessory #1 MO-RA3 Pro 4x180 Radiator, 2xD5 pumps
    Accessory #2 Hardtubing 13/10 custom waterloop
    Accessory #3 Bitspower fittings
    Aurosonic's Avatar
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    As i expected, issue was my motherboard. Switched to Apex XI and so far so good.
    9900k@5200@1.35v LLC5/Apex XI@0231/G-Skill F4-4600C18D-16GTZR/Aorus 2080ti xTream Wateblock@2100/8100

  3. #33
    Administrator Array Silent Scone@ASUS's Avatar
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    Quote Originally Posted by Aurosonic View Post
    A got some memory issues with my Formula XI as well. Memory kit G.Skill F4-4266C17Q-32GTZR
    Wasn't able to pass stresstests at 4266CL17 no matter which vccio and vccsa, tried up to 1.4v
    Been able to pass tests by downclocking it to 4200. After 3 month of successfull usage at one day my system hang so even reset didn't work.
    I turned off the system and on next boot i got postcode CC. None CMOS reset, retry, memok didn't help to pass this CC postcode.
    Then i've tried to check each memory stick separately and found that 1 of the sticks caused the problem. I've tried it in each of four slots and it gave me postcode CC every time.
    Once i remove this stick and leave three others, system boots perfectly fine but i had to downclock it to 4100 to make it work stable (seems like cuz of T-Topology).
    Tomorrow i'm gonna sent memory back by warranty.

    Got another kit, 2x8 this time F4-4600C18D-16GTZR. Same as previous kit it works stable only at 4100CL17 due to T-Topology. Now i've ordered APEX XI Motherboard and hopefully it'll solve all my issues and i could run at least 4400CL17 stable with my F4-4600C18D-16GTZR kit.
    Quote Originally Posted by Aurosonic View Post
    As i expected, issue was my motherboard. Switched to Apex XI and so far so good.

    Those speeds can be tough on 4 DIMM boards, you need a good CPU and, if needed, good methodology when tuning in IO. Of course, even then there are no guarantees of achieving the kits validated speed and timings.

    Took a while, but I sourced that kit.

    F4-4266C17Q-32GTZR on Formula XI @ XMP (1 Hour of Stress App Test)


    Click image for larger version. 

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  4. #34
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    Exactly same problem with HERO XI BIOS 0805, and HyperX Predator 3200Mhz 32GB (8x4) HX432C16PB3K4/32 (Hynix) + 9900k. Sometimes the system may not start. I tried different frequencies and voltages - full random. The system can start ten times in a row, but not start the 11th time! And it will not start until you reset the BIOS settings or enable MemOK (sometimes memok suggests 1.45v and 1.4 vccio&sa for xmp 3200mhz omg!!!) At the same time, I calmly pass the 24 hour stress memory test if I can boot even with OC ram to 3466 16-18-36 and 1.1 vccio&sa!!

    Please help!! On my old z370 g-gaming everything was fine for 6 months! 0 problems! I think this is bios problem!!
    Last edited by EtoEgor; 03-14-2019 at 05:07 AM.

  5. #35
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    Quote Originally Posted by Silent Scone@ASUS View Post
    Those speeds can be tough on 4 DIMM boards, you need a good CPU and, if needed, good methodology when tuning in IO. Of course, even then there are no guarantees of achieving the kits validated speed and timings.

    Took a while, but I sourced that kit.

    F4-4266C17Q-32GTZR on Formula XI @ XMP (1 Hour of Stress App Test)


    Click image for larger version. 

Name:	4266MHz.jpg 
Views:	0 
Size:	579.7 KB 
ID:	79337
    Please help

  6. #36
    Administrator Array Silent Scone@ASUS's Avatar
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    Under the DRAM timing page, enable MRC Fast Boot and soak test the system. You might want to consider using a different method of testing memory stability (such as HCI Memtest or Ramtest)

  7. #37
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    Quote Originally Posted by Silent Scone@ASUS View Post
    (such as HCI Memtest or Ramtest)
    I use exactly these tests and can pass easily them for 24h

    So I don't understand why I cant pass on boot test sometimes...*
    Last edited by EtoEgor; 03-14-2019 at 09:09 AM.

  8. #38
    Administrator Array Silent Scone@ASUS's Avatar
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    Quote Originally Posted by EtoEgor View Post
    I use exactly these tests and can pass easily them for 24h

    So I don't understand why I cant pass on boot test sometimes...*
    The difference between what constitutes as electrically valid and what is valid in the OS can some times differ enough to cause these things. You can possibly dial this out by adjusting VCCSA/VCCIO or alternatively using the VCCSA/VCCIO boot voltage.

  9. #39
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    Quote Originally Posted by Silent Scone@ASUS View Post
    alternatively using the VCCSA/VCCIO boot voltage.
    How?

    And what if I leave everything as it is? The system is completely stable if MRC Fast Boot is enabled...

    I still think that your bios is bugged.
    Last edited by EtoEgor; 03-14-2019 at 08:09 PM.

  10. #40
    Administrator Array Silent Scone@ASUS's Avatar
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    Quote Originally Posted by EtoEgor View Post
    How?

    And what if I leave everything as it is? The system is completely stable if MRC Fast Boot is enabled...

    I still think that your bios is bugged...
    That's because MRC Fast Boot retains the last known settings in NVRAM, so routines are missed. It's easy to draw conclusions to things like "bugs" if one doesn't understand what constitutes as a pass / fail. You could relax CL by one clock and this would also likely stop the cold boot issues, too.

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