Samsung NP900X4D Service Manual page 59

4. The system can power on, but cannot boot into Windows
1 Make sure no USB storage device is connected to the USB port
If the 'Operating system not
process even though the SSD is recognized by CMOS, the operating system
2
of the SD may be corrupted or the SSD is out of order.
5. The system can power on, but LED on power button does not lit up.
1 Check if there is any material blocking the LED
2 Change Power switch FPC
Change Sub board
3
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found'message appears during the booting
4. Trouble shooting
Format the SSD and reinstall the
operating System.
If problem persists, replace SSD
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