Dell OptiPlex 5080 Small Form Factor Service Manual - Page 52

System error messages, WiFi power cycle

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System error messages Table 9. System error messages System message Description Alert! Previous attempts at booting this system have failed at checkpoint [nnnn]. For help in resolving this problem, please note this checkpoint and contact Dell Technical Support The computer failed to complete the boot routine three consecutive times for the same error. CMOS checksum error RTC is reset, BIOS Setup default has been loaded. CPU fan failure CPU fan has failed. System fan failure System fan has failed. Hard-disk drive failure Possible hard disk drive failure during POST. Keyboard failure Keyboard failure or loose cable. If reseating the cable does not solve the problem, replace the keyboard. No boot device available No bootable partition on hard disk drive, the hard disk drive cable is loose, or no bootable device exists. ● 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. 52 Troubleshooting

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System error messages
Table 9. System error messages
System message
Description
Alert! Previous attempts at booting this
system have failed at checkpoint [nnnn]. For
help in resolving this problem, please note
this checkpoint and contact Dell Technical
Support
The computer failed to complete the boot routine three
consecutive times for the same error.
CMOS checksum error
RTC is reset,
BIOS Setup
default has been loaded.
CPU fan failure
CPU fan has failed.
System fan failure
System fan has failed.
Hard-disk drive failure
Possible hard disk drive failure during POST.
Keyboard failure
Keyboard failure or loose cable. If reseating the cable does not
solve the problem, replace the keyboard.
No boot device available
No bootable partition on hard disk drive, the hard disk drive
cable is loose, or no bootable device exists.
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.
52
Troubleshooting