DA0BKXMB8D0 rev D shorted 1.8V

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • kubica
    New Member
    • Aug 2020
    • 2
    • Poland
    #1

    DA0BKXMB8D0 rev D shorted 1.8V

    Hi,
    I have a DA0BKXMB8D0 rev D motherboard.
    There is a short circuit on the 1.8V line.
    During the short-circuit test, absolutely nothing getting hot, board take 3A.
    What can I do now?
    Last edited by kubica; 01-22-2025, 03:33 AM.
    Tags: 1.8v, motherboard repair, no power, short, troubleshooting
    • mon2
      Badcaps Legend
      • Dec 2019
      • 14002
      • Canada
      #2
      With no power to the board, what is the exact resistance to ground of the 1v8 line? If the board is consuming 3A then someone is getting hot. Is the CPU without a heatsink?

      You are injecting a voltage onto the 1v8 line?

        Comment

        • mcplslg123
          Badcaps Legend
          • Jun 2015
          • 7262
          • india
          #3
          What's the exact resistance to GND on 1.8V rail?

          This is an amd platform and a short on 1.8V rail is almost a sure indication of shorted cpu.

            Comment

            • kubica
              New Member
              • Aug 2020
              • 2
              • Poland
              #4
              Originally posted by mon2
              With no power to the board, what is the exact resistance to ground of the 1v8 line? If the board is consuming 3A then someone is getting hot. Is the CPU without a heatsink?

              You are injecting a voltage onto the 1v8 line?
              With no power resistance to ground of the 1.8V line is 0.1ohm. I removed a heatsink and injecting a voltage to spi vcc leg.
              My thermal camera is cheap and I guess it doesn't see that the ryzen is heating up.

                Comment

                Previous template Next

                Related Topics

                Collapse
                • Lee M.
                  IR night vision goggles to find shorted panel line?
                  by Lee M.
                  Has anybody tried to use IR night vision goggles or other thermal imaging device to find a shorted line in a ribbon cable going from a panel driver board into the panel? I would think the shorted line would get hotter than the other lines and might just show up on a thermal imaging device. Just wondering if anyone has tried this and if so did it work?
                  11-10-2023, 03:19 PM
                • Yanleb
                  Panasonic TC-P50S1 shorted TXNSC1EDUU (TNPA4782AB) SC Board
                  by Yanleb
                  Hi every one. I just want to share the successful repair of my shorted Panasonic TNPA4782AB SC board.

                  I don't usually do it but so many parts were shorted that I decided to buy the ShopJimmy repair kit instead of sourcing each components individually. Here is the list of components the kit contained, with a remark indicating if I needed that part or not :

                  D608, good
                  D618 RF101L4S, good (See warning 1 below)
                  D619 RF101L4S, good (See warning 1 below)
                  D865 RF101L4S, shorted (See warning 1 below)

                  IC464 Inverter HA MC74HC1G14, shorted...
                  03-09-2020, 12:00 AM
                • kalilinux25
                  LENOVO Shorted +5VALW AND +3VALW LINE ACLU9/ACLU0 NM-A311
                  by kalilinux25
                  Hi good day to all hope someone can give me some advice whats happening to this board.

                  Ive check the output voltage line of +5valw and +3valw all shorted I thought I was having a SIO shorted to.
                  I try to remove the SIO chip But still shorted I tried to check all CAPS of the pu401 and PU402 all ok

                  SHORTED TO GROUND

                  PL402 AND PL401 , i tried also to remove the 2 coils and test the PJ402 and PJ406 im having short at those sections,

                  I hope someone can guide me if anyone, Thank You in advance...
                  01-20-2021, 11:56 PM
                • Mousetohome
                  PS5 Shorted power button line
                  by Mousetohome

                  I been trying to trace this via for a few hours now, Could someone tell me what Chip gets Ground to power up the console? Or maybe about where it should go? This is from a EDM-033 but i would imagine most are the same....
                  1 Photo
                  09-21-2024, 01:43 PM
                • modtool
                  HP Victus 15-FA1025NL , board DAG3PAMB8D0 REV:D, shorted CPU DrMOS and n-mos
                  by modtool
                  Hi to all,
                  the owner of this machine gave it to me after having opened it to take off the dust from the inside, telling me that after that it didn't start anymore.
                  I found that one of the DrMOS (AOZ5016QI) on the CPUCORE was shorted between VIN and VSWH, and that one of the two n-mos connected to the power jack was shorted aswell.
                  I unsoldered the two shorted components and verified that there were no other short circuits, then decided to power the mainboard, firstly with the lab power supply, then with its original HP 200w charger, but the behaviour is the same, the board starts...
                  04-01-2025, 08:22 AM
                • Loading...
                • No more items.
                Working...