M-Bist; Diagnostics - Dell Latitude 5300 2-in-1 Chrome Service Manual

M-BIST

Diagnostikatööriist M-BIST (sisseehitatud enesetest) on täpsem emaplaadi rikete määratlemise tööriist.
MÄRKUS: M-BIST-i saab käivitada käsitsi enne POST-i (käivitustest).
Kuidas M-BIST-i käivitada?
MÄRKUS: M-BIST tuleb käivitada, kui toide on väljalülitatud ja süsteem on ühendatud vahelduvvooluvõrku või ainult aku
toitel.
1. M-BIST-i käivitamiseks vajutage pikalt korraga klahvi M ja toitenuppu.
2. Klahvi M ja toitenuppu korraga vajutades võib aku oleku LED-tuli näidata kahte olekut.
a. OFF (väljas): emaplaadil ei tuvastatud ühtki riket
b. AMBER (merevaigukollane): osutab emaplaadi probleemile

Diagnostics

This chapter details the built in troubleshooting features to diagnose the Dell Latitude 5300 2-in-1 Chrome systems. It also lists the
invoking instructions along with related information for each diagnostics method.
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
NOTE: The Enhanced Pre-boot System Assessment window displays, listing all devices detected in the computer. The
diagnostics starts running the tests on all the detected devices.
Running ePSA diagnostics
1. Press and Hold the Power and F2 to boot into Chrome OS recovery menu.
2. Press F12 or Ctrl + C key on the keyboard to go to diagnostics screen.
3. Press the Power button to launch ePSA.
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