Dell OptiPlex 7080 Tower Service Manual - Page 99

WiFi power cycle

Page 99 highlights

Table 11. System error messages (continued) System message No timer tick interrupt NOTICE - Hard Drive SELF MONITORING SYSTEM has reported that a parameter has exceeded its normal operating range. Dell recommends that you back up your data regularly. A parameter out of range may or may not indicate a potential hard drive problem Description ● If the hard drive is your boot device, ensure that the cables are connected and that the drive is installed properly and partitioned as a boot device. ● Enter system setup and ensure that the boot sequence information is correct. A chip on the system board might be malfunctioning or motherboard failure. S.M.A.R.T error, possible hard disk drive failure. WiFi power cycle About this task If your computer is unable to access the internet due to WiFi connectivity issues a WiFi power cycle procedure may be performed. The following procedure provides the instructions on how to conduct a WiFi power cycle: NOTE: Some ISPs (Internet Service Providers) provide a modem/router combo device. Steps 1. Turn off your computer. 2. Turn off the modem. 3. Turn off the wireless router. 4. Wait for 30 seconds. 5. Turn on the wireless router. 6. Turn on the modem. 7. Turn on your computer. Troubleshooting 99

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Table 11. System error messages (continued)
System message
Description
If the hard drive is your boot device, ensure that the
cables are connected and that the drive is installed
properly and partitioned as a boot device.
Enter system setup and ensure that the boot sequence
information is correct.
No timer tick interrupt
A chip on the system board might be malfunctioning or
motherboard failure.
NOTICE - Hard Drive SELF MONITORING SYSTEM
has reported that a parameter has exceeded
its normal operating range. Dell recommends
that you back up your data regularly. A
parameter out of range may or may not
indicate a potential hard drive problem
S.M.A.R.T error, possible hard disk drive failure.
WiFi power cycle
About this task
If your computer is unable to access the internet due to WiFi connectivity issues a WiFi power cycle procedure may be
performed. The following procedure provides the instructions on how to conduct a WiFi power cycle:
NOTE:
Some ISPs (Internet Service Providers) provide a modem/router combo device.
Steps
1.
Turn off your computer.
2.
Turn off the modem.
3.
Turn off the wireless router.
4.
Wait for 30 seconds.
5.
Turn on the wireless router.
6.
Turn on the modem.
7.
Turn on your computer.
Troubleshooting
99