Power Button On PC Not Working

Discussion in 'Computer Hardware' started by Lois Lane, Jun 21, 2025 at 9:09 PM.

  1. Lois Lane

    Lois Lane Audiosexual

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    I tried turning off my audio dedicated PC yesterday from sleep and the button jammed . I took apart the right side, the top and front to see if I could unjam it, which I could but it still is stuck on one side and I need to unjam it every time. At the bottom on the floor of the case I found a little plastic thing (see photo) that seems to match a twin on the other side of where it seems this was previously.

    I bought some compressed air and contact cleaner. I was thinking to blow out the button zone to see if a little plastic bit broke off and is keeping it from depressing on the the part of the button not going down.

    Is this a good first step to try or not?

    [​IMG]

     
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  3. SineWave

    SineWave Audiosexual

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    I would try this: first turn off the computer on the power supply, then get some clean cloth and soak it with alcohol (vodka or tequila can do, too :yes:), clean the button with it, especially the edges of it and its casing. "train" the button a little while it's wet until it turns on/off smoothly. That usually does it. Compressed air is not of great help as this is most probably sticky grease from fingers that collected on the sides both on the button side and the casing of the button side. It is sticky and prevents the button from working normally. That happens more often than you think. :wink:

    Hope it helps! :wink: Cheers!

    p.s. if you can't reach the greasy dirt with the cloth, you can use ear cleaning tips, or use a toothpick with a bit of cotton wool.
     
    Last edited: Jun 21, 2025 at 9:27 PM
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  4. PulseWave

    PulseWave Platinum Record

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  5. SineWave

    SineWave Audiosexual

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    I didn't see the picture when I replied. So the little plastic button holder broke. You will most probably have to pull out the whole plastic cover, which is the button in fact, and use the real button inside to turn the PC on. Yeah, it won't look great, but it will work. However, maybe cleaning it the way I described could work, too, but I doubt it. The little plastic holder is pretty important for the button to work properly. :sad:

    Let us know how it goes, mate. :wink: I'll be here for the time being. Drinking red, writing lyrics and making some tunes later... the standard Saturday night procedure. :rofl:
     
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  6. shinjiya

    shinjiya Platinum Record

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    The comment above is correct. Remove the plastic from the button and just use the real button beneath to turn it on. I hope your outlets are properly grounded, because that might start giving a bit of a electric shock depending on the type of button they used in the case.

    I highly recommend getting a new case, there are many inexpensive cases that are high quality nowadays. Take a look at Phanteks and Lian Li cases.
     
  7. thantrax

    thantrax Audiosexual

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    If the problem stay unresolved ordering an external Power Button could help
    It's cheap
    upload_2025-6-21_23-32-7.jpeg
     
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  8. MFSAKA

    MFSAKA Ultrasonic

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    You can start the PC with a screwdriver. Just short up start pins on the motherboard (Google it)
     
  9. SineWave

    SineWave Audiosexual

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    All the power buttons I've ever seen, even in blade servers, are made from hard plastic (for this very reason), so grounding shouldn't be a problem. It's a good practice to check it, anyway, of course. Thanks! :wink:
     
  10. vuldegger

    vuldegger Platinum Record

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    i'd buy a new case if cannot be fixed easily
     
  11. Somnambulist

    Somnambulist Audiosexual

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    Cases are fairly cheap these days. While I get that it seems extravagant to buy a new case because of a piece of broken plastic, sometimes, the quickest solution can be the better, versus the time trying to fix something that may not last post-fix.
     
  12. macros mk2

    macros mk2 Rock Star

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    Try turning it on and off again.... oh shit nevermind sorry Lois Lane
     
  13. SineWave

    SineWave Audiosexual

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    Those wonderful Saturday nights, eh? Saturdays rule. :wink: Enjoy!
     
  14. justsomerandomdude

    justsomerandomdude Rock Star

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    Guessing from the pic alone i could not make any thing it looks like a clip or lock of a component that broke apart, they usually like push in lock kinda thingy. A little more detail of the the situation could be useful. And also the make or model of the unit.
    If everything fails, i Would go with external power button. There are other accessories can can be installed like a dvd rom or the fan controller, but its unnecessary, and its the cheapest simplest way.
    https://www.amazon.com/power-button-pc/s?k=power+button+pc
    [​IMG]
     
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  15. usernone

    usernone Producer

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    Here is the best fix. Forget about screwdrivers and such... Simply open your case and plug the thin PWR cable into the RESET port. often located on the lower-right hand side of your motherboard. From then on, your reset button will be your power button. I'm sure you don't use the reset button on your case anyway. Who does?
     
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  16. clone

    clone Audiosexual

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    Best Answer
    you might appreciate the irony.
    Giving the button area a quick blast of compressed air never hurts, but in this situation it probably won’t cure the root problem—you’re almost certainly dealing with a mechanical fault, not dirt or oxidation.

    What’s likely going on
    • Most PC-case power buttons sit on a tiny plastic “see-saw” or hinge that presses a momentary microswitch on the front-panel PCB.

    • If you found a loose plastic shard that looks like one of the button’s pivots, that hinge is now missing a support on one side. The button can still move, but it tilts and binds instead of sliding straight in, so you have to keep “unjamming” it.
    Why compressed air & contact cleaner won’t solve it
    • Compressed air will blow away dust—helpful, but dust isn’t jamming the button.

    • Contact cleaner excels at restoring electrical contacts or pots; here the switch itself is still fine, it’s just physically mis-aligned. Spraying cleaner on plastic can even make some plastics brittle or cloudy.
    So treat the air can as routine maintenance, not a fix.

    Practical repair options
    Option What to do Pros Cons
    Re-attach / rebuild the broken pivot
    Super-glue or two-part epoxy the broken peg back in place, or recreate it with a tiny sliver of plastic or 3-D-printed piece. Restores original feel; inexpensive. Needs steady hands; glue joint may not be very strong.
    Replace the front-panel button module Many cases let you pop the whole button board out. Check the case maker’s site or eBay for spares. Like-new fix. Depends on parts availability; may cost $$ or take time.
    Add an external momentary switch Unplug the front-panel button header (two-pin “PWR_SW”) on the motherboard and connect a generic momentary switch you mount elsewhere (even a small arcade-style button on top). Dead-reliable; takes stress off the broken plastic. Not as pretty; minor DIY wiring.
    Use the motherboard’s on-board power button (if present) High-end boards often have a built-in power button. Zero effort. Requires opening the case every time; not all boards have one.
    Temporary workaround
    • Leave the side panel off and keep a small flat screwdriver handy. Briefly short the two POWER SW header pins to boot the PC until you decide on a permanent fix.

    • Disable “fast boot” in BIOS/UEFI and Windows so you can rely more on Sleep or Hibernate—less frequent need to hit the power button.
    Bottom line
    Blow the area out if you like, but expect the real fix to involve re-creating or replacing the little broken hinge post. Until then, bypass the case switch with the motherboard header or an external button so you’re not fighting a jam every time you start the machine.

    ChatGPT can make mistakes. Check important info.
     
  17. frankzappa.fz

    frankzappa.fz Producer

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    Hi, I had the same problem 2 years ago and bought an external power button (5-6 euros) that usually comes with 1,5-2 m cable. I placed the button on the desk so I don’t need anymore to lower myself under the table to turn on the pc. You’ll need to find a place to pass the cable inside the case (from the backside is easy).
     
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  18. Lois Lane

    Lois Lane Audiosexual

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    Sorry for not being so present in my own thread, I've been...preoccupied with...stuff.

    Thanks for all the replies as well as some welcome giggles. I guess I'll go with the external power button workaround. I'm not the guy that can swap out a case and would most probably fuck it all up, no, definitely. The case is kinda big and mostly empty looking like a big cave with modern archeological artifacts strewn around. I guess it works for my need of total silence as the PC is sometimes at most just 50 cm away from a condenser mic frequently capturing quiet sources.

    Again, thanks for coming to the rescue. :mates:
     
  19. PulseWave

    PulseWave Platinum Record

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    Hi @Lois Lane, here is a video with useful tips.

    Add a PC Power Switch ANYWHERE! - Outside Your Case


    With this product you get a 2 meter long cable:

    Mechanical power switch for desktop computers: LED on/off button extension for motherboard boot
    - Package includes: 1 x magnetic computer power switch ON/OFF with 2 m cable; 1 x 1 to 2 splitter; 1 x adhesive sticker; 1 x installation instructions
    www.amazon.com/Desktop-Computer-Power-Button-Switch/dp/B0BYZYQL9F/
     
    Last edited: Jun 22, 2025 at 10:40 AM
  20. Lois Lane

    Lois Lane Audiosexual

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    That can't be delivered to where I lived...or where you live.
     
  21. PulseWave

    PulseWave Platinum Record

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