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  1. #1
    ROG Enthusiast Array m4x2012 PC Specs
    m4x2012 PC Specs
    Laptop (Model)Surface Pro 4
    MotherboardMaximus Hero XI
    Memory (part number)G.Skill 16Gb 3200Mhz DDR4
    Graphics Card #1AORUS 1080Ti Xtreme 11Gb
    Storage #1970 EVO 256Gb
    Storage #2850 PRO 512Gb
    CPU CoolerNoctua NH-D15
    CaseCarbide 400r
    Power SupplyCorsair AX 750i
    Keyboard G110
    Mouse Steelseries Rival 700
    Headset Sennheiser G4m3
    Mouse Pad QcK
    OS W10 64bit

    Join Date
    May 2012

    PG278Q - 2nd RMA for faulty PSU

    I'm pretty disappointed concerning the 2nd RMA of the PG278Q power adapter.

    The last one was good for about 9 months and the first one (the original) for about 1 year.
    The screen now suddently turn on during the night...

    What's the matter with this monitor?
    How can I solve the problem definitely?


  2. #2
    ROG Guru: Yellow Belt Array Crashcourse316 PC Specs
    Crashcourse316 PC Specs
    MotherboardASUS Z97 Wifi-Pro
    Memory (part number)32GB G-Skills
    Graphics Card #1MSI GEFORCE® GTX 1080 GAMING X 8G
    Storage #1Samsumg 951 Pro m.2 512GB
    CPU CoolerCorsair H100
    Power Supply1600W 80 Platinum
    OS Win10

    Join Date
    Feb 2016

    upgrade to a different model .....kinda serious. the 278 is a great model and a similar board and firmware is used in a bunch of similar models so the issue you are having is most likely related directly to your physical model. Have you had your monitor swapped out before, or have you just had the PSU replaced?

    Depending on the issue the previous power Supply had could have caused some issues with the monitor itself. Before we jump to conclusions though, It is highly unlikely that the PSU going bad caused an issue unless the cause was a power surge of some sort that the PSU could not protect the monitor from. If you have issues from the start of getting the new PSU then it is related to receiving the new PSU. If the issues exists before the new PSU then it is mostlikely related to the monitor itself. As for it turning on in the middle of the night I would think the first thing is do you have any animals in the house that like to touch things because that happens. Also it could have been a unikely chance of moisture getting into the button and causing a false hit on the power button. Another thing you could test is to turn off your monitor then unplug it from the wall for about 10 seconds and plug it back in. This simulates a power outage. After plugging it back in did the monitor default to the On position or did it remain powered off?

    Try and duplicate the issues multiple times so that you can find the cause and either call up asus to find a solution or maybe just find out its just an extra feature of the monitor.
    I7-4790k OC 4.9 1.375v
    MSI Gaming X GTX 1080 OC core:2055Mhz Mem:5504Mhz

    If you like what I post, hit that Rep button.
    If i'm posting here it's only because I'm at work and have nothing better to do other than solve your problems.

  3. #3
    ROG Guru: Yellow Belt Array
    Join Date
    Jul 2016

    I don't often hear about faulty PSUs, have you made sure it is not just your monitor? The chance of you getting 2 faulty PSU is pretty slim.

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