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Hp 6735s, freezing

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    #1

    Hp 6735s, freezing

    Hello, have this hp 6735s that freeze. It is uma version. i replaced ATI IGP for a good working one but freezing continues.
    any advice?
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    #2
    Re: Hp 6735s, freezing

    hello did you try with another cpu,ram?

    Comment

      #3
      Re: Hp 6735s, freezing

      yes everything that can be changed have been changed. i relize that it wont start or charging when using adapter below 95W

      Comment

        #4
        Re: Hp 6735s, freezing

        i think it should be work with 65W charger.. KBC?

        Comment

          #5
          Re: Hp 6735s, freezing

          Sounds to me like it could be the southbridge.
          Originally posted by PeteS in CA
          Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
          A working TV? How boring!

          Comment

            #6
            Re: Hp 6735s, freezing

            i never have bad sb so i dont know. do u think reball should be ok or i must change ic

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              #7
              Re: Hp 6735s, freezing

              Bad SB could cause freezing, disappearing USB, no detection of ODD/HDD/keyboard, things like that.

              Reballing should work, southbridges don't get hot, more likely is that the laptop has been dropped and some of the solder balls detached.
              Originally posted by PeteS in CA
              Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
              A working TV? How boring!

              Comment

                #8
                Re: Hp 6735s, freezing

                reballed SB but still the same. i noticed that when it freeze all voltages is ok but voltage on processor goes from 1.1V to 0.8V

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                  #9
                  Re: Hp 6735s, freezing

                  My personal experience the other day. Laptop LGR510 (quanta QL8 board UMA) came with problem with inverter and screen. Screen was a quite rare model of 15.4 led with separate inverter. Ordered and replaced ic on inverter (OZ9956B) light came to the screen's leds but the screen wasn't working (the usual screen tab problem). Fixed it. Laptop went into windows but it was so slow and after a few reboots it will not even go into windows (stuck on the running bar of windows vista). Changed everything (CPU, ram, hdd) and was ready to replace - reball Northbridge when I noticed that one of the two resistors of the adj signal to the inverter was not installed on board (the one from the northbridge side) and the signal was coming only from the KBC. So, I decided to replace first the KBC before replacing the Northbridge (The truth was that I had in stock the KBC but I had to wait a long time for a Northbridge replacement).
                  And the result, it was a faulty KBC.
                  Last edited by atsio; 07-23-2015, 04:05 AM.

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                    #10
                    Re: Hp 6735s, freezing

                    ????

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                      #11
                      Re: Hp 6735s, freezing

                      Replace KBC. My mind would never suspect the KBC for freezing problems.
                      Last edited by atsio; 07-23-2015, 04:38 AM.

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