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  1. #1
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    Asus G75JS-T4008H Charging Issue

    When I plug the charger into the laptop nothing happens. I have to unplug the adapter from the wall socket and plug it back into the wall socket for it to start charging the laptop battery. Brand new unit and charger. Is this faulty?
    I have turned the laptop off, removed the battery, plugged the charger in to power the laptop directly and nothing happens. Same thing, I have to remove the charger from the wall socket and plug it back into the wall socket to power up the laptop.
    I've tried this when the battery is at 100%/75%/50%/25%/5% charge...always the same thing.
    The laptop charger model is ADP-180MB F / Output 19.5V @ 9.23A.

  2. #2
    ROG Guru: Yellow Belt Array
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    shut down the machine, then remove the batt and keep pushing power for 30 seconds, wait a little and then replug the charger and boot the machine, then put the battery in..
    Laptop : ASUS G750JW : i7 4700HQ - 16Gb - 2Tb HDD - GTX 765M OC (+135/500) - Full HD Matte - Win 8.1
    Retiered : Toshiba L670 i5 560M/8Gb Corsair/1TB/HD5650 1Gb @ 625/800 /WD 1Tb USB3/Win7

  3. #3
    New ROGer Array ivo1st PC Specs
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    Laptop (Model)ASUS G750JS
    MotherboardGigabyte X99 Gaming 5
    ProcessorCore i7-5930K
    Memory (part number)GEIL EVO POTENZA DDR4 Quad channel
    Graphics Card #1Gigabyte GTX970 OC
    Sound CardCreative Sound Core3D™ quad-core audio processor
    Monitor2x NEC W221
    Storage #12TB Western Digital Black SATA3
    CPU CoolerThermalright CPU Cooler HR-02 Macho Rev.A
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    I have similar symptoms. I did notice that this happens when your adapter is plugged in the socket without any load. So I think this is some power saving feature of the charger. It turns itself off when idle. I think this is also good for the charger, because it is not good for impulse power supply or charger to stay without load. So, disconnect it from the socket and reconnect. It will turn on.

    And do not forgert - It's not a bug, It's a feature!

  4. #4
    ROG Guru: Platinum Belt Array hmscott PC Specs
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    Laptop (Model)Asus G750JH-DB71 (legacy)
    MotherboardAsus G750JH Intel HM87
    ProcessorIntel i7-4700HQ XTU Cores 36x/35x/34x/34x Cache 36x -50mV undervolt
    Memory (part number)Hyundai Electronics HMT41GS6AFR8A-PB 1.35v DDR3L-1600MHz
    Graphics Card #1Nvidia 780m Asus GPU Tweak OC 932mhz/6300mhz
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    Storage #1RAID0 2x M.2 SATA Crucial MX200 512GB CT500MX200SSD6
    Storage #2Crucial 512GB 2.5" MX200 CT500MX200SSD1
    Power Supply230w AC Power Adapter 19.5v
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    Quote Originally Posted by ivo1st View Post
    I have similar symptoms. I did notice that this happens when your adapter is plugged in the socket without any load. So I think this is some power saving feature of the charger. It turns itself off when idle. I think this is also good for the charger, because it is not good for impulse power supply or charger to stay without load. So, disconnect it from the socket and reconnect. It will turn on.
    And do not forgert - It's not a bug, It's a feature!
    ivo1st, good job man, you are the first one to identify the real benefit of the new Asus power adapter - it is no longer a power parasite - drawing power and expelling waste heat while sitting idle waiting for your next plug-in of the laptop.

    The way to optimize these power saving adapters, is to plug them all into a switched power strip - and turn them all off when you leave with the flip of 1 switch. Then when you come back, flip the switch on - and all the power adapters are ready to deliver power - no unplugging / plugging back in of the power adapter to AC by hand.

    It's a feature I wish Asus had pointed out, perhaps even labeled on the Power Adapter - I wish my G750JH 230W adapter did this, but I turn off the power strip anyway - same effect.

    This change forces everyone to stop wasting power brick idle power.

  5. #5
    New ROGer Array ivo1st PC Specs
    ivo1st PC Specs
    Laptop (Model)ASUS G750JS
    MotherboardGigabyte X99 Gaming 5
    ProcessorCore i7-5930K
    Memory (part number)GEIL EVO POTENZA DDR4 Quad channel
    Graphics Card #1Gigabyte GTX970 OC
    Sound CardCreative Sound Core3D™ quad-core audio processor
    Monitor2x NEC W221
    Storage #12TB Western Digital Black SATA3
    CPU CoolerThermalright CPU Cooler HR-02 Macho Rev.A
    CaseCM Storm Trooper
    Power SupplyCorsair RM1000 80 Plus
    OS Gentoo Linux and Windows

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    I agree that ASUS should have written this somewhere in the documentation. The other thing is if you look at the back of the adapter where the specifications are, you might notice the bunch of standards that are met. I am pretty sure if we can find what each of the standards cover, we will understand why the adapter shuts itself off when no load is attached.

  6. #6
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    Hi, I have got exacly same problem, anypne know what can I do? I really cant believe this is just a feature to save energy and keep power supply cool. It make me very annoying when I always need to unplug and plug power supply back. I woul like to say that time between unplug in plug in again should be minimum 40 seconds, for less doesnt work! If I unplug charger direct from laptop (during charging), even for a second, then I need to do un-plug > plugitback process again. It cant be feature because for long time everything work good.

  7. #7
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    Two months since last post without respond, 2 weeks ago my charger stopped working at all.......
    Never dropped it or anything and it looks like I can just put it in to the bin.
    I couldnt find any advices on internet

  8. #8
    ROG Guru: White Belt Array
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    After you unplug it's normal to still work for a while (mine works for like 1 min or so).
    But if it stops right away/not at all, it's very likely that it's not ok.
    If you had some knowledge on how it works it wouldn't be that hard to fix it, as parts are cheap. - if your still covered by warranty send it to asus. No need to bother with anything.

  9. #9
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    Thanks for answer, Warranty is expired so I'll try to fix it on my own. Which part most likely needs replacement? Capacitors? Any advice how to open charger? It looks massive and very tough.

    Click image for larger version. 

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  10. #10
    ROG Guru: White Belt Array Amenophis's Avatar
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    Are you still waiting for a reply to your query Joenas?

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