Difference between revisions of "Fitlet2 Troubleshooting"

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== I can't turn on the computer, it doesn't wake up ==
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===1. [https://fit-pc.com/wiki/index.php?title=Fitlet2_Troubleshooting_-_I_can%27t_turn_on_the_computer,_it_doesn%27t_wake_up I can't turn on the computer, it doesn't wake up] ===
  
===1. Check power supply (PSU)===
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===2. [https://fit-pc.com/wiki/index.php?title=Fitlet2_Troubleshooting_-_I_don%27t_have_any_display_output,_there%27s_nothing_on_the_screen I don't have any display output, there's nothing on the screen] ===
*Make sure the DC cable is not damaged and connected properly to the machine.
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*Make sure the AC cord is properly plugged to both sides (Wall mounted well plugged).
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*Trying an alternative adapter could eliminate bad PSU.
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===2. Check memory (RAM)===
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===3. [https://fit-pc.com/wiki/index.php?title=Troubleshooting_fitlet2_-_Linux_system_periodically_fails_to_boot_after_pressing_power_button fitlet2 Linux system periodically fails to boot after pressing power button] ===
*Verify RAM module is seated firmly in its socket.
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*Try to eliminate faulty memory sticks by swapping it with one another.
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===3. Check Peripherals (HDD/SSD/USB)===
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===4. [https://fit-pc.com/wiki/index.php?title=Troubleshooting_fitlet2_-_running_Linux_does_not_have_a_working_audio_out/SPDIF fitlet2 running Linux does not have a working audio out/SPDIF] ===
*Unplug peripherals and try to power up with bare minimum, that includes HDD/SSD/USB devices.
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*Verify power up without storage. Sometimes damaged drives may cause the overall system to malfunction.
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===4. fitlet2 BIOS reset===
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===5. [https://fit-pc.com/wiki/index.php?title=Troubleshooting_fitlet2_-_after_starting_the_OS_(Windows)_there_are_few_un-recognized_devices_under_Device_Manager After starting the OS (Windows) there are few unrecognized devices under Device Manager] ===
 
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Reset BIOS settings to default for [[Fitlet2: Revision Notes#fitlet2 Rev 1.2 | fitlet2 revisions 1.2 and later]]:
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[[File:Fitlet2_rtc_rst.png]]
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#Unplug power cable from the fitlet2
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#Remove the 4x Phillips Chassis screws
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#Remove bottom and top cover
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#Remove the RAM stick
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#Plug in power cable (should turn on automatically), and Wait ~10 seconds
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#Unplug power cable
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#Assemble back the RAM stick
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#Press the RTC reset button.
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#Plug power cable (should be automatically turned on)
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BIOS settings should be reset to defaults.
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* For fitlet2 older than rev 1.2 see [[Fitlet2 BIOS reset for rev 1.1 and older]]
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== I don't have any display output, there's nothing on the screen ==
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===1. Screen functionality and connectivity===
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* Make sure both power and display cables are connected firmly on both sides.
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* Make sure the screen is turned On and is functioning.
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* The best way to check screen functionality is by connecting to a good known working machine.
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===2. Validate memory===
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*Display issues on POST are a common symptom of incorrectly assembled or bad Memory DIMMS
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*Please refer to [http://fit-pc.com/wiki/index.php/fitlet2_Troubleshooting#2._Check_memory_.28RAM.29 Check memory RAM] to diagnose Memory
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== fitlet2 Linux system periodically fails to boot after pressing power button ==
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* If your Linux system periodically fails to boot after pressing power button and messages like "watchdog: BUG: soft lockup - CPU#2 stuck for 23s!" appears, please do the following BIOS settings changes:
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# Press [Del] during boot to enter BIOS settings:
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# Set Chipset -> South Cluster Configuration -> SCC Configuration -> SCC SD Card Support to [Disable]
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== fitlet2 running Linux does not have a working audio out/SPDIF ==
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* If your default BIOS setting "OS Selection" is set to [Windows] but [Linux] is desired, then run the following [https://fit-iot.com/files/download/fitlet2/sw/scripts/fitlet2_alc1150_hda_patch.sh script] and reboot the system
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Code:
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$ sudo ./fitlet2_alc1150_hda_patch.sh
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$ sudo reboot
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== After starting the OS (Windows) there are few un-recognized devices under Device Manager ==
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===Check the BIOS settings===
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# Reboot your machine
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# Enter the BIOS menu
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# Under Main menu find "'''OS Selection'''" and make sure it is configured to "'''Windows'''" (see the attached screenshot)
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# Save the changes and exit.
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# After starting the OS make sure you have all necessort drivers installed. Please refer to [https://fit-pc.com/wiki/index.php?title=Windows_10_drivers_for_fitlet2 Windows 10 drivers for fitlet2]
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[[File:Un-recognized_devices_Fitlet2_Windows10.jpg]]
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Revision as of 07:53, 18 May 2020

1. I can't turn on the computer, it doesn't wake up

2. I don't have any display output, there's nothing on the screen

3. fitlet2 Linux system periodically fails to boot after pressing power button

4. fitlet2 running Linux does not have a working audio out/SPDIF

5. After starting the OS (Windows) there are few unrecognized devices under Device Manager