Depending on how keen you are, you could start checking if all the voltage rails are correct on startup.
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Another check maybe is to prove if the fan is OK i.e. the sensors in the fan, temp and speed. If the IO chipset doesn't know the fan is working it'll shutdown the laptop to protect the CPU. Connect an Ohmmeter between the black wire (earth) and each of the sensor wires in turn. For the temp sensor you should see resistance as it is a themistor. With the speed sensor, spin the fan and check for pulses, usually it is a hall effect sensor. If no good on the either temp or speed check between the red wire (batt) and the sensor leads. If still no good check a known working fan to verify
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Another check maybe is to prove if the fan is OK i.e. the sensors in the fan, temp and speed. If the IO chipset doesn't know the fan is working it'll shutdown the laptop to protect the CPU.
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Disconnect the fan and connect an Ohmmeter between the black wire (earth) and each of the sensor wires in turn. For the temp sensor you should see resistance as it is a themistor. With the speed sensor, spin the fan and check for pulses, usually it is a hall effect sensor.
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If no good on the either temp or speed check between the red wire (batt) and the sensor leads. If still no good check a known working fan to verify
Here's the [link|https://www.alisaler.com/dell-inspiron-15-5567-bal20-la-d801p-rev1-0-a00-schematics/|schematic] for the motherboard that may also help as it shows all the individual voltage supply values and how they're derived.
Depending on how keen you are, you could start checking if all the voltage rails are correct on startup.
-
Another check maybe is to prove if the fan is OK i.e. the sensors in the fan, temp and speed. If the IO chipset doesn't know the fan is working it'll shutdown the laptop to protect the CPU. Connect an Ohmmeter between the black wire (earth) and each of the sensor wires in turn. For the temp sensor you should see resistance as it is a themistor. With the speed sensor, spin the fan and check for pulses, usually it is a hall effect sensor. If no good on the either temp or speed check between the red wire (batt) and the sensor leads.
+
Another check maybe is to prove if the fan is OK i.e. the sensors in the fan, temp and speed. If the IO chipset doesn't know the fan is working it'll shutdown the laptop to protect the CPU. Connect an Ohmmeter between the black wire (earth) and each of the sensor wires in turn. For the temp sensor you should see resistance as it is a themistor. With the speed sensor, spin the fan and check for pulses, usually it is a hall effect sensor. If no good on the either temp or speed check between the red wire (batt) and the sensor leads. If still no good check a known working fan to verify
Here's the [link|https://www.alisaler.com/dell-inspiron-15-5567-bal20-la-d801p-rev1-0-a00-schematics/|schematic] for the motherboard that may also help as it shows all the individual voltage supply values and how they're derived.
Depending on how keen you are, you could start checking if all the voltage rails are correct on startup.
-
Another check maybe is to prove if the fan is OK i.e. the sensors in the fan, temp and speed. If the IO chipset doesn't know the fan is working it'll shutdown the laptop to protect the CPU.
+
Another check maybe is to prove if the fan is OK i.e. the sensors in the fan, temp and speed. If the IO chipset doesn't know the fan is working it'll shutdown the laptop to protect the CPU. Connect an Ohmmeter between the black wire (earth) and each of the sensor wires in turn. For the temp sensor you should see resistance as it is a themistor. With the speed sensor, spin the fan and check for pulses, usually it is a hall effect sensor. If no good on the either temp or speed check between the red wire (batt) and the sensor leads.
-
Here's the [link|https://www.alisaler.com/dell-inspiron-15-5567-bal20-la-d801p-rev1-0-a00-schematics/|schematic] for the motherboard that may help.
+
Here's the [link|https://www.alisaler.com/dell-inspiron-15-5567-bal20-la-d801p-rev1-0-a00-schematics/|schematic] for the motherboard that may also help as it shows all the individual voltage supply values and how they're derived.
Depending on how keen you are, you could start checking if all the voltage rails are correct on startup.
-
Another check maybe is to prove if the fan is OK i.e. the sensors in the fan, temp and speed. If the BIOS doesn't know the fan is working it'll shutdown the laptop to protect the CPU.
+
Another check maybe is to prove if the fan is OK i.e. the sensors in the fan, temp and speed. If the IO chipset doesn't know the fan is working it'll shutdown the laptop to protect the CPU.
-
Here's the [https://www.alisaler.com/dell-inspiron-15-5567-bal20-la-d801p-rev1-0-a00-schematics/|schematic] for the motherboard that may help.
+
Here's the [link|https://www.alisaler.com/dell-inspiron-15-5567-bal20-la-d801p-rev1-0-a00-schematics/|schematic] for the motherboard that may help.
Hi @thequacker
Depending on how keen you are, you could start checking if all the voltage rails are correct on startup.
Another check maybe is to prove if the fan is OK i.e. the sensors in the fan, temp and speed. If the BIOS doesn't know the fan is working it'll shutdown the laptop to protect the CPU.
Here's the [https://www.alisaler.com/dell-inspiron-15-5567-bal20-la-d801p-rev1-0-a00-schematics/|schematic] for the motherboard that may help.