Computer will POST only after a dozen boot attemps

Collapse
X
Collapse
 
  • Page of 2
  • Time
  • Show
Clear All
new posts
Previous 1 2 template Next
  • linuxguru
    Badcaps Legend
    • Apr 2005
    • 1564
    #21
    Re: Computer will POST only after a dozen boot attemps

    I've seen worse - this one at least has populated inductors on the secondary pi-filter. You can easily recap this one with a wide range of good caps - my current pick is the Nichicon PW(M) or Rubycon YXG, but various other choices exist. Just make sure that you recap everything on the auxiliary power supply, which supplies +5Vsb as well as the internal supply for the controller.

      Comment

      • Hugo
        Member
        • Jan 2006
        • 13
        #22
        Re: Computer will POST only after a dozen boot attemps

        Hmmm sorry for reviving this thread, but it would be nice to move it to the: "Power Supply Design and Troubleshooting" forum. I think what happened to me might be a very common problem; many persons out there might have a bad PSU that's causing a similar range of symptoms.

        By the way, I'm still extremely happy of my new Enermax PSU. It outputs a VERY stable signal, no interference whatsoever. It was extremely easy to install (and the manual was very complete). The computer's behavior is back to normal.

          Comment

          Previous 1 2 template Next

          Related Topics

          Collapse
          • privato89
            Nintendo Switch Oled HEG-001: Second-Stage Boot Failure
            by privato89
            Hello everyone,

            I'm facing an issue with a HEG-001 motherboard that is unable to complete the Second-Stage Boot. I'd like to start directly with my conclusion, which is the decision to replace the MAX77621AEWI chip, and understand if it could be a correct evaluation.

            Before I dive into the process that led me to this decision, I want to mention that I have a fully equipped lab where I can perform any kind of tests.

            Let's begin:

            Following some guides online, I tried to understand how the Boot phase of the Nintendo Switch works, and what are the...
            03-26-2024, 06:37 AM
          • hinisa
            Xiaomi router freezes at boot after re-capping
            by hinisa
            I'm using Xiaomi Router 4A gigabit edition as wireless repeater. It worked fine for 2 years or so, but last week, wireless started to disappear.

            When I unplug/replug the power, it was working fine for a day/half a day or so until it freezes again.

            After testing with different power supply adapters and concluding it wasn't the issue I finally opened the case and this was the situation:



            Anyway I proceed to clean up the mess and replace all caps but unfortunately it made the situation worse. Now router can't even boot, either it freezes during...
            07-08-2023, 05:58 AM
          • Luke Anders
            Lenovo Legion 5 (15ACH6H/17ACH6H) - Does not boot into any OS
            by Luke Anders
            Hi everyone,

            A few details about the laptop itself:

            Name: Lenovo Legion 5
            Model: 15ACH6H (according to its back cover details) / 17ACH6H (according to the BIOS Menu)
            BIOS Version: GKCN60WW
            EC Version: GKEC65WW
            Serial Number: PF39AQ7Z
            Board Model: NM-D562 Rev 3.0
            RAM: 16GB Installed, DDR4 (brand new)
            NVME: 500GB NVME drive (brand new, installed Windows 10 onto it for testing purposes and tested on another laptop (a dell XPS) works perfectly fine and boots in)

            I bought this laptop recently from eBay as a faulty device....
            10-12-2024, 05:13 AM
          • NolesFan
            Samsung un82ru88000f - Boot loop sort of but can correct with taping of LVDS ribbon
            by NolesFan
            Hello all... TV started boot looping. Opened the back panel and tried to isolate the problem. Just PSB no boot loop. PSB and MB no boot loop. Plug in the LVDS from panel to MB and boot looping starts up. It doesnt matter of order that I plug the LVDS ribbons back in, only 1 and no boot loop but as soon as 2nd one plugs in boot looping. I then noticed a flicker on the screen when I was closing the clip on the harness to the LVDS. Shut the lights off so I can see better, and I noticed as i slowly close it, I will get a picture, but as soon as it clips in, I lose picture and booting happens. So I...
            2 Photos
            10-24-2024, 06:36 PM
          • torchzack
            Samsung 55" TV - Boot loop but sometimes works fine - UE55MU6470U
            by torchzack
            Hi Team - just joined to see if anyone can offer some expertise in diagnosing an issue with a TV.

            I've done a few hours googling and youtubing but just seeing if anyone has any insight here. I got a 55" Samsung UE55MU6470U which seems to boot loop and then after 10 mins will boot, work for a few minutes, then turn off and repeat.

            Whilst it's on into the normal Samsung menu/boot screen it looks perfect - so I can't see there being any screen issues. I've seen lots of videos with taping across clock lines to diagnose which particular one may be an issue but i don't...
            08-28-2023, 07:42 AM
          • Loading...
          • No more items.
          Working...