6. Turn on the modem.
7. Turn on your computer.
Drain residual flea power (perform hard reset)
About this task
Flea power is the residual static electricity that remains in the computer even after it has been powered off and the battery is
removed.
For your safety, and to protect the sensitive electronic components in your computer, you are requested to drain residual flea
power before removing or replacing any components in your computer.
Draining residual flea power, also known as a performing a "hard reset", is also a common troubleshooting step if your computer
does not power on or boot into the operating system.
To drain residual flea power (perform a hard reset)
Steps
1. Turn off your computer.
2. Disconnect the power adapter from your computer.
3. Remove the base cover.
4. Remove the battery.
5. Press and hold the power button for 20 seconds to drain the flea power.
6. Install the battery.
7. Install the base cover.
8. Connect the power adapter to your computer.
9. Turn on your computer.
NOTE:
For more information about performing a hard reset, see the knowledge base article
at
.
136
Troubleshooting
Summary of Contents for OptiPlex 7760
Page 1: ...Precision 7760 Service Manual Regulatory Model P44E Regulatory Type P44E002 July 2021 Rev A01 ...
Page 17: ...For computers without SSD door configuration Removing and installing components 17 ...
Page 25: ...Removing and installing components 25 ...
Page 29: ...Removing and installing components 29 ...
Page 74: ...74 Removing and installing components ...
Page 87: ...Removing and installing components 87 ...
Page 97: ...Removing and installing components 97 ...
Page 98: ...98 Removing and installing components ...