Any ideas what kind of damage does a shorted processor do?

Collapse
X
Collapse
+ More Options
Posts
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • orientalsniper
    Badcaps Veteran
    • Apr 2013
    • 459
    • USA
    #1

    Any ideas what kind of damage does a shorted processor do?

    Got recently a new laptop motherboard, when I went to power it on after installing it, the motherboard would turn on and turns off immediately (restarting? power cycling?). Found out the processor was shorted.

    So I was wondering which rail should I check? Any chance it fried the northbridge/southbridge? I will start working with it starting tomorrow, so I haven't even checked for schematics yet (can't recall model either).
    Last edited by orientalsniper; 02-14-2015, 02:12 AM.
    Tags: None
    • polytek
      Badcaps Veteran
      • Dec 2013
      • 496
      • TUNISIA
      #2
      Re: Any ideas what kind of damage does a shorted processor do?

      please, post the platform code and the pc model or the schematic diagram,

        Comment

        • orientalsniper
          Badcaps Veteran
          • Apr 2013
          • 459
          • USA
          #3
          Re: Any ideas what kind of damage does a shorted processor do?

          Motherboard is 6050A2443401. I attached schematic.

          I'm still not sure what kind of damage a shorted processor would have done. There are 6 pages just for the processor (15-20) in the schematic.

          5V & 3V are present.

          Symptom: All lights turn on and fan running too (1-2 seconds), then all off, then on, keeps going forever like that.
          Attached Files
          Last edited by orientalsniper; 02-16-2015, 06:11 PM.

            Comment

            Previous template Next

            Related Topics

            Collapse
            • reessi
              Acer Alienware Nitro 5 (GH51G LA-L181P Rev: 1C) & Dell Alienware M15 (GDP50 LA-k452P Rev:1) - Both Shorted PCH (SRKMA)!
              by reessi
              Hello:

              I have both these laptops that appeared to have the same fault so I thought I would have a go at replacing the PCH as something to learn, they both are using the same PCH.


              I started on the ACER:

              Up on connecting power no signs of life but current is consumed from the bench power supply and the PCH is hot.
              All the caps on the top of the PCH are showing 0 ohms and the 3.3v rail is shorted.

              I followed the videos from Sorin, Electronics Repair School on Youtube heating from the bottom to install. I practised on around 10 scrap...
              10-29-2024, 11:31 AM
            • 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
            • 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
            • shlomim412
              Macbook Pro a2141 820-01700 - short on PPBUS
              by shlomim412
              Hello

              working on a dead a2141 logicboard - 820-01700

              no power, on usb c ampmeter it's on 5v drawing 0.01a

              visual inspection under the microscope - board look good, no liquid damage on any kind of damage.

              ppbus_g3h is 0.3v, and is shorted to ground showing around 50ohms (continuity beep) and climbing..

              i removed F7000 and F7001 and now getting 12v on PPBAT_G3H..

              also verified the short is on the system side (pin2 of F7000\1)..

              i tried to inject voltage, 1v to ppbus_g3h but it's only drawing...
              07-01-2023, 04:09 AM
            • BalkanBoy
              Dead Razer Blade 14 2022, shorted CPU?
              by BalkanBoy
              Hi,

              today I got Razer Blade 14, Ryzen 9 6900HX and RTX 3070Ti.

              Laptop was completely dead. I found shorted CPU VRM mosfet, shorted 19V mosfet and blown battery fuse.

              I replaced it all, but still on CPU coil where mosfet was shorted I got very low resistance, near 0 ohms. On other CPU coils I got around 3 ohms.

              Laptop now raises voltage on whole board, but still nothing comes on the screen. CPU gets 0.7V on all coils except the shorted one. CPU gets only slightly hot, below 40 C.

              I removed coil and injected 0.7V, it draw around...
              09-27-2024, 12:44 PM
            • Loading...
            • No more items.
            Working...