Service Manual
6 To run a diagnostic test on a specic device, press Esc and click Yes to stop
the diagnostic test.
7 Select the device from the left pane and click Run Tests.
8 If there are any issues, error codes are displayed.
Note the error code and validation number and contact Dell.
Diagnostics
The following table shows dierent beep codes and what they indicate.
Table 9. Diagnostics
Beep code Problem description
1 Motherboard: BIOS ROM failure
2 No Memory/RAM detected
3 Chipset error
4 Memory or RAM failure
5 CMOS battery failure
6 Video card/chip failure
Wi-Fi power cycle
If your computer is unable to access the internet due to Wi-Fi connectivity issues a
Wi-Fi power cycle procedure may be performed. The following procedure
provides the instructions on how to conduct a Wi-Fi power cycle:
NOTE: Some ISPs (Internet Service Providers) provide a modem/router
combo device.
1 Turn o your computer.
2 Turn o the modem.
3 Turn o the wireless router.
4 Wait for 30 seconds.
5 Turn on the wireless router.
6 Turn on the modem.
7 Turn on your computer.
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