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HELP to find out the value of the resistor HP Elitebook 840 G10

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    #1

    HELP to find out the value of the resistor HP Elitebook 840 G10

    Hello everyone, please help me find out the value of this resistor in the photo. Unfortunately, it flew away during desoldering, and pc don't power on without.
    It is located next to the EC BIOS on the Bottom of the motherboard Hp Elitebook 840 G10
    You can measure it directly with tester
    I can't find schematic and boardview for this laptop 😓

    Thank you!

    Resistor value HP Elitebook 840 G10
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    #2
    Share the topside markings of this flash IC. Then download the datasheet for this device and review the package that is onboard.

    Check which pin is linked to this missing resistor. If the pin is a data line then most likely will be a 33 ohm resistor and is to stop ringing. If the pin is a status line then this could be a pull-up or pull-down resistor so ~10k ohms.

    Comment

      #3
      Originally posted by mon2 View Post
      Share the topside markings of this flash IC. Then download the datasheet for this device and review the package that is onboard.

      Check which pin is linked to this missing resistor. If the pin is a data line then most likely will be a 33 ohm resistor and is to stop ringing. If the pin is a status line then this could be a pull-up or pull-down resistor so ~10k ohms.
      Hello, the name of IC is Winbond 25Q256JV, resistor connects the third pin with the peripheral, in the datasheet it says that the third pin corresponds to write protect input. I could not find out more because I am not very competent in finding more detailed information. If you can help me please, thanks

      Comment

        #4
        Test the resistance from the other pad of this part to ground. Test to the power pin of this flash chip.

        If you find a low resistance then this is a pull up or pull down resistor so use 10k ohms.

        If not, use 33-100 ohms here.

        Comment

          #5
          Originally posted by mon2 View Post
          Test the resistance from the other pad of this part to ground. Test to the power pin of this flash chip.

          If you find a low resistance then this is a pull up or pull down resistor so use 10k ohms.

          If not, use 33-100 ohms here.
          What are the consequences of using the wrong resistor in this setting?

          Comment

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