Power rail sequence for 30 series GPU

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • paulyboy
    Senior Member
    • Mar 2020
    • 130
    • New Zealand

    #1

    Power rail sequence for 30 series GPU

    Hi Im new to GPU repair and wondered if I couild get some insight in general to the power sequencing of the video cards

    Which rails starts to which rail ends.

    I assume its like a laptop 12v 5v 3.3 then the lower 1.2 0.8v etc. but this is purely assumption.

    Any help appreciated. thankyou
  • ktmmotocross
    Boardkiller
    • Feb 2014
    • 3577
    • slovakia

    #2
    Re: Power rail sequence for 30 series GPU

    there are hundreds of videos on youtube

    Comment

    Related Topics

    Collapse

    • Tynan Dill
      Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?
      by Tynan Dill
      I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

      Upon bringing it home and plugging it up, it showed a standby light.

      I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

      The screen seems to blackout and stay black, but with a flashlight I can see the display.

      With my Playstation 4 connected via HDMI, and running a game I can hear sound.

      Assuming...
      11-22-2024, 01:46 PM
    • Victor Moreira Silva
      Acer Nitro 5 LA-L181p power LED turns on by 5 secs (Short on PCH rail?)
      by Victor Moreira Silva
      Hello everyone,

      I'm trying to repair my old Acer Nitro 5 (AN517-54-55T5). I've already bought a new laptop, so this is more of a learning project. For the experience, with no high expectations of success.

      Well, my decice specs are the following:

      Model: Acer Nitro 5 AN517-54-55T5
      CPU: Intel Core i5-11400H
      GPU: NVIDIA GeForce GTX 1650
      Motherboard: GH51G LA-L181P Rev:1c

      The symptom:
      When pressing the power button, the power LED lights up for about 5 seconds and then turns off. Initially, the issue was intermittent: sometimes...
      05-26-2025, 10:49 AM
    • GLISIT
      Asus Probook P5440UF-XB74 power issue
      by GLISIT
      Hi all,

      TL;DR - this laptop is driving me nuts with the oddball power-related behaviors. Appreciate any insight you can provide!


      I'm experiencing a power issue on an Asus Probook P5440UF-XB74. Although I've worked with electronics and computers for decades, this is my first attempt at getting into motherboard-level component troubleshooting. Any help the community can provide is greatly appreciated!

      A few weeks ago I was using the laptop (on battery power) for a Zoom meeting. The battery was running very low (long meeting) but I wasn't worried about...
      01-16-2025, 02:29 PM
    • PantherDave
      Microsoft Surface Pro (5th gen) model 1796 - no power
      by PantherDave
      Hi all!

      I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅

      I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
      https://www.badcaps.net/forum/troubl...-hardware-devi...
      05-29-2024, 02:01 PM
    • claws77
      lenovo flex 5 14itl05 power sequence issue
      by claws77
      hi guys, my motherboard will not start no matter what
      when connected to ac power, the battery does get charge, led indicator glows red when discharged and turns white as it is fully charged.
      but rest nothing happens no sign of life.

      this laptop has one preexisting usbc power issue - so i use DCIN jack for charging my laptop.
      with this issue my laptop was unable to power ON only sometimes i just had to wait some time.
      but now nothing happens no matter how much i wait/ charge/ press and hold power button.

      i have no knowledge of motherboards ....
      10-20-2024, 02:48 PM
    • Loading...
    • No more items.
    Working...