HP Probook 4530s 3 capslock blinking, No display

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  • Zilicon
    Senior Member
    • Nov 2020
    • 142
    • Nigeria
    #1

    HP Probook 4530s 3 capslock blinking, No display

    Hearty greetings to everyone, trust you are all doing good and your loved ones.

    Please, I have the above challenge.

    what I have done:
    I have tried working RAM on the motherboard,
    I have replaced the CPU,
    I have reprogrammed the BIOS chip,

    But the problem persisted, no changes.

    The RAM on the PC works fine on another PC.
    1.5v for the RAMb (L503) is present
    CPU core is present as well.

    below are the vltage taken at some of the coils:
    L3= 1.1v
    L5059= 0.9v
    L503= 1.5v
    U9418= 0v (VGFX_CORE)
    U9416= 1.1v
    U9417= 1.1v

    note that the CPU gets hot and the fan runs at top speed.

    Please, how do i fix this problem?
    Tags: None
    • Zilicon
      Senior Member
      • Nov 2020
      • 142
      • Nigeria
      #2
      Please, can any one help? 🙏
      I'm out of ideas.

        Comment

        • Zilicon
          Senior Member
          • Nov 2020
          • 142
          • Nigeria
          #3
          Originally posted by Zilicon
          Please, can any one help? 🙏
          I'm out of ideas.
          The problem has been fixed.

          DIMM0_VREF_DQ was shorted to the ground.
          short cleared and boom, the pc worked.
          both slots were shorted

            Comment

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