Update = After completing troubleshooting, a DELL-Cares agent setup onsite service.
Hello, When we turn on the Inspiron 5400 AIO, there will be a horizontal bright light at part of the screen followed by long whistle like sound (not from speaker but from upper Inspiron 5400 AIO I think). When AIO pc is on by 5 or 10 minutes the bright light and whistle like sound will disappear. When we are ask Dell technical support for the fault finding, checking the hardware and system from Running Dell system and hardware check, it show us with no issues. But when we try to reboot then the problem seems to appear again and again. Is there no good way to resolved this problem?
Inspiron 5400 AIO, screen bright light and follow with long whistle like sound