Optiplex 9020 First time power up blink Power led , Harddrive LED and DVD LED

jinal1482

Reputable
Jul 23, 2014
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I just purchased optiplex 9020.

If shutdown computer for more than 4-5 hours and if I start again it will blink Power LED , HardDrive LED and DVD LED once.

After that If press power button computer start normally.

I just want to know why it blink at first place.

If I shutdown and start after 10-15 minutes this thing not happen.

Doe any body help me to understand this issue ?

I have power management setting
Wake ON Lan : Disable
Deep Sleep Control : Enable in S4 and S5.