Asus GL551JM power short after water damage

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  • Learn2Day
    Badcaps Veteran
    • Jun 2013
    • 254
    • Portugal
    #1

    Asus GL551JM power short after water damage

    Hi guys,

    Need your help with this laptop. It got water damage. Even after cleaning it's quite noticeable on the photo.
    I noticed the charger would turn on protection as soon as I plugged it in, so I injected power and right away noticed that the BQ735 from TI heats up pretty fast. Probably needs replacement. But I'd like to try using flux and reflow water damaged components before anything else..

    My question is, considering this is a fairly recent laptop and I don't to further damage the board, what hot air temp do you recommend? I usually use 350ºC but I'm afraid it might be too hot..

    Thanks.
    Attached Files
    Galaxy S6 Edge x2 (Gold&White)
    Asus GL552VW-i7 6700HQ|GTX 960M|15.6"FHD|16GB DDR4|512GB M.2 SSD+1TB SSD
    Clevo W230SD - i7 4710MQ|GTX960M|13"QHD+|16GB DDR3L|500GB+256GB mSATA SSD+1TB HDD

    Try Harder!
    Tags: None
    • diif
      Badcaps Legend
      • Feb 2014
      • 6978
      • England
      #2
      Re: Asus GL551JM power short after water damage

      I have my hot air on 380°C, the temperature on the display does not really matter as its how close you have the nozzle that matters.
      Lead free melts at about 220°C.

        Comment

        • rewanco
          Member
          • Nov 2015
          • 21
          • syria
          #3
          Re: Asus GL551JM power short after water damage

          up the pq and put it again

            Comment

            • TechGeek
              Computer Geek
              • Jan 2015
              • 2254
              • USA
              #4
              Re: Asus GL551JM power short after water damage

              What's a PQ?
              Don't buy those $10 PSU "specials". They fail, and they have taken whole computers with them.

              My computer doubles as a space heater.

              Permanently Retired Systems:
              RIP Advantech UNO-3072LA (2008-2021) - Decommissioned and taken out of service permanently due to lack of software support for it. Not very likely to ever be recommissioned again.
              Asus Q550LF (Old main laptop, 2014-2022) - Decommissioned and stripped due to a myriad of problems, the main battery bloating being the final nail in the coffin.


              Kooky and Kool Systems
              - 1996 Power Macintosh 7200/120 + PC Compatibility Card - Under Restoration
              - 1993 Gateway 2000 80486DX/50 - Fully Operational/WIP
              - 2004 Athlon 64 Retro Gaming System - Indefinitely Parked
              - Main Workstation - Fully operational!

              sigpic

                Comment

                • Learn2Day
                  Badcaps Veteran
                  • Jun 2013
                  • 254
                  • Portugal
                  #5
                  Re: Asus GL551JM power short after water damage

                  Hey guys,
                  Thanks for the tips, I already ruled out the 735, but even after removing it problem's still there, but now I have other components heating up, highlighted in photo..

                  I'm pretty sure this some component that goes into short as soon as power is injected, however there's not short without power.. I'm lost!

                  Any tips on where to go next?

                  Thanks.


                  Originally posted by TechGeek
                  What's a PQ?
                  PQ, usually is the IC description on the board..
                  Attached Files
                  Galaxy S6 Edge x2 (Gold&White)
                  Asus GL552VW-i7 6700HQ|GTX 960M|15.6"FHD|16GB DDR4|512GB M.2 SSD+1TB SSD
                  Clevo W230SD - i7 4710MQ|GTX960M|13"QHD+|16GB DDR3L|500GB+256GB mSATA SSD+1TB HDD

                  Try Harder!

                    Comment

                    • Learn2Day
                      Badcaps Veteran
                      • Jun 2013
                      • 254
                      • Portugal
                      #6
                      Re: Asus GL551JM power short after water damage

                      Will it help if I send a mobo photo and highlight where the water residues were?

                      Thanks again.
                      Galaxy S6 Edge x2 (Gold&White)
                      Asus GL552VW-i7 6700HQ|GTX 960M|15.6"FHD|16GB DDR4|512GB M.2 SSD+1TB SSD
                      Clevo W230SD - i7 4710MQ|GTX960M|13"QHD+|16GB DDR3L|500GB+256GB mSATA SSD+1TB HDD

                      Try Harder!

                        Comment

                        • Learn2Day
                          Badcaps Veteran
                          • Jun 2013
                          • 254
                          • Portugal
                          #7
                          Re: Asus GL551JM power short after water damage

                          Can anyone get me schematics and board view for this board?
                          Galaxy S6 Edge x2 (Gold&White)
                          Asus GL552VW-i7 6700HQ|GTX 960M|15.6"FHD|16GB DDR4|512GB M.2 SSD+1TB SSD
                          Clevo W230SD - i7 4710MQ|GTX960M|13"QHD+|16GB DDR3L|500GB+256GB mSATA SSD+1TB HDD

                          Try Harder!

                            Comment

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