Hi friend, v5-431 not powering on,

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • kazia
    Senior Member
    • May 2015
    • 145
    • indonesia

    #1

    Hi friend, v5-431 not powering on,

    Hi friend, need some help.
    v5-431 no powering on.

    19v present
    3v,5v present

    3v_5v_POK = 2.2v
    sw button = 1.2v

    S5_enable = 3.3v
    Rsmrst# = 0v
    Pm_pwrbtn# = 3.3v
    AC_present = 0v
    AC_IN = 0v

    bios flashed, rehot pch, still same.

    schematic attach
    Attached Files
    Last edited by kazia; 06-23-2016, 12:27 AM.
  • samanthban
    Badcaps Veteran
    • Feb 2014
    • 253
    • Sri lanka

    #2
    Re: Hi friend, v5-431 not powering on,

    Attach your schematic and show where you traced
    sigpic

    Comment

    • kazia
      Senior Member
      • May 2015
      • 145
      • indonesia

      #3
      Re: Hi friend, v5-431 not powering on,

      problem seems similar like this

      https://www.badcaps.net/forum/showth...ghlight=v5-471

      still not solve yet, any suggestion?

      Comment

      • HarryPK
        Badcaps Veteran
        • Mar 2014
        • 210
        • barabai

        #4
        Re: Hi friend, v5-431 not powering on,

        Change io/kbc. Try to change swiching fet. Or check caps around lan block

        Comment

        Related Topics

        Collapse

        • valvashon
          LG 55UH6150- trouble powering up, then half lit screen (pictures!)
          by valvashon
          The 55" LG has been in the basement for a few months without being used. Turned it on yesterday, set came on as it should and showed a complete screen for about 5 seconds (was on a broadcast channel but no antenna was connected), then the screen went mostly dark with about 1/3 of the screen on the right lighting up with brighter lines in that lit part (sorry, no pictures of that). Power LED was cycling too, preventing the TV from fully powering up.
          Pulled the back off, all boards looked OK. Pulled the LED connector, turned the set on to see if it would power up but I don't belive it...
          11-24-2024, 12:08 PM
        • DarKHawK
          Asus 2021 ROG Strix G17 G713 not powering on and not charging.
          by DarKHawK
          Hi,

          I have an Asus 2021 ROG Strix G17 G713 that is not powering on and not charging. Board number is G533-6050A3250201.
          When plugged in, I found that the 3.3v/5v regulator was getting extremely hot, so I removed, next I found a short on the 3.3V rail. Removed the two 3.3v mosfets and found one of them shorted, but still the short on the rail did not clear. Then I injected voltage at that rail, and found out that U60400 the 2.5v rail was also getting hot. Removing it changed the short from 0 ohms to about 5-6 ohms, then I remove a bunch of other suspect components but that did...
          07-11-2025, 05:24 AM
        • serious_electron
          Strange! Acer laptop not powering on but charging the battery (orange light on when charger and battery plugged in).
          by serious_electron
          Hello Everyone!

          I have an Acer Aspire A315-42 laptop. I generally leave it on for long time by closing down its lid (so it enters the sleep mode). Recently, it rained quite heavily in out area. And the humidity and moisture seem to be high. So one late evening, after I opened the lid and turned on the laptop, it did power on as the blue light turned on but after it booted to the desktop screen, just 5-10 seconds after both the screen and blue light went out and laptop shut down (the blue power light turned orange). And after 2-4 seconds that orange light went off and the laptop died.
          ...
          06-28-2025, 02:57 PM
        • Geeker007
          Friend messed up my laptop motherboard while working on my bench
          by Geeker007
          Hi All,

          So my friend was visiting and he wanted to use my solder bench to solder on some WLED circuit board. My laptop was open on the side for RAM upgrade. I know my mistake.

          So while soldering he had too much solder on the soldering iron tip and he just shook off the soldering iron on the table itself to remove extra solder on the soldering tip and it landed on the motherboard of laptop. He then out of fear tried to remove it using solder wick and did more damage by removing some components as well. So here I am with weird situation.

          I have not tried putting...
          06-16-2025, 01:40 PM
        • ShadowAi12
          ASUS ROG STRIX B550-F GAMING — Board not powering on properly
          by ShadowAi12
          Hi,
          I recently bought an ASUS ROG STRIX B550-F GAMING motherboard that was listed as "dead, not powering on." However, it does show some signs of life. I've performed several basic measurements and would like to share the results.
          • The board enters a "ready to power on" state after plugging in the PSU.
          • Pressing the power button increases power draw.
          • Sometimes, touching the RSMRST_L pad with a multimeter probe causes the board to shut off and return to standby.
          Measurements:
          (taken after pressing the power button, while the board is attempting to start)
          • H_SKTOOC#
          ...
          06-11-2025, 01:05 PM
        • Loading...
        • No more items.
        Working...