LENOVO T490 High quality photo of CPU area needed

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  • Robin21
    Member
    • Feb 2021
    • 44
    • the Netherlands

    #1

    LENOVO T490 High quality photo of CPU area needed

    Hello,

    Does anyone have a motherboard from the Lenovo T490 model FT490/FT492/FT590/FT531 NM-B901 and could take a picture of the CPU area, including all the components around it? I would be very grateful.

    During the CPU replacement process, I messed up all the resistors and capacitors, and now I can't get it to work again. The motherboard was powering up before, but now it doesn't, even with the newly installed CPU. All voltages are okay, and I don't have any shorts, so I'm assuming I'm missing one of the resistors.

    I've also followed the schematic and Broadview, but there are small differences, unfortunately.


    It's this MB:

    Click image for larger version

Name:	Screenshot 2024-09-24 110640.jpg
Views:	967
Size:	177.4 KB
ID:	3468347
  • imranromi
    Badcaps Legend
    • Jan 2015
    • 1288
    • Pakistan

    #2
    Originally posted by Robin21
    Hello,

    Does anyone have a motherboard from the Lenovo T490 model FT490/FT492/FT590/FT531 NM-B901 and could take a picture of the CPU area, including all the components around it? I would be very grateful.

    During the CPU replacement process, I messed up all the resistors and capacitors, and now I can't get it to work again. The motherboard was powering up before, but now it doesn't, even with the newly installed CPU. All voltages are okay, and I don't have any shorts, so I'm assuming I'm missing one of the resistors.

    I've also followed the schematic and Broadview, but there are small differences, unfortunately.


    It's this MB:

    Click image for larger version

Name:	Screenshot 2024-09-24 110640.jpg
Views:	967
Size:	177.4 KB
ID:	3468347
    Here
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    • Robin21
      Member
      • Feb 2021
      • 44
      • the Netherlands

      #3
      Thank You so much!🙏

      Comment

      • tomodachi
        Badcaps Veteran
        • Apr 2012
        • 593
        • Turkey

        #4
        Originally posted by Robin21
        Thank You so much!🙏
        Please let us know if it worked after CPU replacement

        Comment

        • Robin21
          Member
          • Feb 2021
          • 44
          • the Netherlands

          #5
          Hi,

          There were some differences. I've set all the resistors as shown in the photo. After connecting the USB-C power, the power button LED blinks three times. All voltages on the board are okay.

          The difference is that my motherboard has an i7 CPU and a graphics card.
          So, I'll need to compare all components with the schematic again.

          Comment

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