Dell Precision 3620 Precision Tower 3620 Owners Manual - Page 37

Diagnostics, Enhanced Pre-Boot System Assessment — ePSA diagnostics, Troubleshooting your computer, - blink codes

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4 Diagnostics If you experience a problem with your computer, run the ePSA diagnostics before contacting Dell for technical assistance. The purpose of running diagnostics is to test your computer's hardware without requiring additional equipment or risking data loss. If you are unable to fix the problem yourself, service and support personnel can use the diagnostics results to help you solve the problem. Topics: • Enhanced Pre-Boot System Assessment - ePSA diagnostics • Troubleshooting your computer Enhanced Pre-Boot System Assessment - ePSA diagnostics The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is embedded with the BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices or device groups allowing you to: • Run tests automatically or in an interactive mode • Repeat tests • Display or save test results • Run thorough tests to introduce additional test options to provide extra information about the failed device(s) • View status messages that inform you if tests are completed successfully • View error messages that inform you of problems encountered during testing CAUTION: Use the system diagnostics to test only your computer. Using this program with other computers may cause invalid results or error messages. NOTE: Some tests for specific devices require user interaction. Always ensure that you are present at the computer terminal when the diagnostic tests are performed. Troubleshooting your computer You can troubleshoot your computer using indicators like diagnostic lights, beep codes, and error messages during the operation of the computer. Power LED diagnostics The power button LED located on the front of the chassis also functions as a bicolored diagnostic LED. The diagnostic LED is only active and visible during the POST process. Once the operating system starts to load, it is no longer visible. Amber LED blinking scheme - The pattern is 2 or 3 blinks followed by a short pause then x number of blinks up to 7. The repeated pattern has a long pause inserted in the middle. For example 2,3 = 2 amber blinks, short pause, 3 amber blinks followed by long pause then repeats. Diagnostics 37

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Diagnostics
If you experience a problem with your computer, run the ePSA diagnostics before contacting Dell for technical assistance. The purpose of
running diagnostics is to test your computer's hardware without requiring additional equipment or risking data loss. If you are unable to
fix
the problem yourself, service and support personnel can use the diagnostics results to help you solve the problem.
Topics:
•
Enhanced Pre-Boot System Assessment — ePSA diagnostics
•
Troubleshooting your computer
Enhanced Pre-Boot System Assessment — ePSA
diagnostics
The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is embedded with the
BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices or device
groups allowing you to:
•
Run tests automatically or in an interactive mode
•
Repeat tests
•
Display or save test results
•
Run thorough tests to introduce additional test options to provide extra information about the failed device(s)
•
View status messages that inform you if tests are completed successfully
•
View error messages that inform you of problems encountered during testing
CAUTION:
Use the system diagnostics to test only your computer. Using this program with other computers may cause invalid
results or error messages.
NOTE:
Some tests for
specific
devices require user interaction. Always ensure that you are present at the computer terminal
when the diagnostic tests are performed.
Troubleshooting your computer
You can troubleshoot your computer using indicators like diagnostic lights, beep codes, and error messages during the operation of the
computer.
Power LED diagnostics
The power button LED located on the front of the chassis also functions as a bicolored diagnostic LED. The diagnostic LED is only active
and visible during the POST process. Once the operating system starts to load, it is no longer visible.
Amber LED blinking scheme – The pattern is 2 or 3 blinks followed by a short pause then x number of blinks up to 7. The repeated pattern
has a long pause inserted in the middle. For example 2,3 = 2 amber blinks, short pause, 3 amber blinks followed by long pause then repeats.
4
Diagnostics
37