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  1. K

    T480s (type 20L7, 20L8) BIOS (ThinkPad) ET481 NM-B471 Rev 1.0 Schematics and BIOS

    When power on led pwr on and off but fan on and off permanent
  2. K

    T480s (type 20L7, 20L8) BIOS (ThinkPad) ET481 NM-B471 Rev 1.0 Schematics and BIOS

    thats not hot, normal temperature.
  3. K

    T480s (type 20L7, 20L8) BIOS (ThinkPad) ET481 NM-B471 Rev 1.0 Schematics and BIOS

    Thats components is to GND is normal or not
  4. K

    T480s (type 20L7, 20L8) BIOS (ThinkPad) ET481 NM-B471 Rev 1.0 Schematics and BIOS

    What area can I check initially?
  5. K

    T480s (type 20L7, 20L8) BIOS (ThinkPad) ET481 NM-B471 Rev 1.0 Schematics and BIOS

    I try new bios, but same problem.
  6. K

    T480s (type 20L7, 20L8) BIOS (ThinkPad) ET481 NM-B471 Rev 1.0 Schematics and BIOS

    Hi, i have a lenovo t480s with bios pass, the back case is down and save that while I got the programmer. Now i go pwr on and that no power, the battery is full charge. When i try pwr on only led pwr one time and off and no never turn it on again so that it turns on again I must disconnect cmos...
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