Having problems with your Sony VAIO VGC-RB40 PC Desktop ?

Green light flashing on back of unit near power cord also green light flashing on motherboard near power supply plug in.

\015 Sony desktop vgc-rb40 Green light flashing\015\012on back of unit near power cord also green\015\012light flashing on mother board near power \015\012supply plug in.\015

Answers :

I would suggest trying to replace the power supply. If that does not fix the issue, i would need to hear more about the computer.
Repair Help & Product Troubleshooting for Sony VAIO VGC-RB40 PC Desktop

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