Pavlovic90 Student
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HP 4540s boot problem

Probook 4540s
Microsoft Windows 10 (64-bit)

I have a Probook 4540s, 3 years old. When I try to move it, the screen becomes black. After that the HDD light becomes yellow instead of white, the fan becomes louder and windows cannot start. Also, after I have read few topics on this forum, I counted the number LED light on caps lock flashes and it flashed 5 times. I've read this is a system board error? I don't know what is considered by system board? After 15-20 minutes the things are normal until I try to move it again....

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