Manufacturer and model directory

Dell computer model troubleshooting

Choose the complete Dell model family before opening a fix. Model patterns are shown on every page, and unsupported code meanings are not copied between platforms.

Exact modelObserved symptomFirst safe testVerificationStop condition

Browse by platform

158 complete records in this directory

XPS 13 9340XPS 13 9340 · 16 answers XPS 14 9440XPS 14 9440 · 16 answers XPS 16 9640XPS 16 9640 · 16 answers Inspiron 14 5440Inspiron 14 5440 · 16 answers Inspiron 16 5640Inspiron 16 5640 · 16 answers Latitude 7450Latitude 7450 · 16 answers Latitude 5450Latitude 5450 · 16 answers Precision 5690Precision 5690 · 16 answers Alienware m16 R2Alienware m16 R2 · 16 answers OptiPlex 7020OptiPlex 7020 · 16 answers

Reviewed records

158 exact answers

Showing 60 representative records. Choose a platform or manufacturer above to see its complete set.

Not sure where the fault is?

Dell · battery drain

Dell Alienware m16 R2 battery drains too quickly

Dell Alienware m16 R2 battery drains too quickly: battery condition, display/radio use, background processes and sleep behavior should be measured. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · Bluetooth

Dell Alienware m16 R2 Bluetooth is missing, will not pair or disconnects

Dell Alienware m16 R2 Bluetooth is missing, will not pair or disconnects: accessory state, competing hosts, driver/firmware and radio hardware should be isolated. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · camera

Dell Alienware m16 R2 camera or microphone is not working in calls

Dell Alienware m16 R2 camera or microphone is not working in calls: privacy permission, physical shutter/mute, one app, device selection and hardware should be separated. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · external monitor

Dell Alienware m16 R2 external monitor is not detected or uses the wrong resolution

Dell Alienware m16 R2 external monitor is not detected or uses the wrong resolution: port capability, adapter/cable, display input, driver and bandwidth must align. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · no sound

Dell Alienware m16 R2 has no sound or distorted audio

Dell Alienware m16 R2 has no sound or distorted audio: output routing, mute/volume, one app, Bluetooth/dock and hardware should be separated. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · slow

Dell Alienware m16 R2 is running very slowly

Dell Alienware m16 R2 is running very slowly: cPU, memory, storage, temperature, updates and one process should be measured instead of cleared blindly. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · stuck startup

Dell Alienware m16 R2 is stuck at startup, automatic repair or recovery

Dell Alienware m16 R2 is stuck at startup, automatic repair or recovery: external devices, storage health, encryption/recovery keys and the exact startup stage determine safe action. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · keyboard

Dell Alienware m16 R2 keyboard or trackpad is not working correctly

Dell Alienware m16 R2 keyboard or trackpad is not working correctly: one key/region, accessibility settings, debris/liquid, external devices and hardware should be separated. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · update failed

Dell Alienware m16 R2 operating-system update will not install

Dell Alienware m16 R2 operating-system update will not install: eligibility, power, storage, date/time, network and update service should be checked before recovery. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · overheating

Dell Alienware m16 R2 runs hot or the fan is loud

Dell Alienware m16 R2 runs hot or the fan is loud: workload, blocked airflow, firmware and cooling hardware should be separated. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · black screen

Dell Alienware m16 R2 screen is black, blank or flickering

Dell Alienware m16 R2 screen is black, blank or flickering: internal display, brightness/lid state, graphics path and external monitor should be isolated. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · storage full

Dell Alienware m16 R2 storage is full or nearly full

Dell Alienware m16 R2 storage is full or nearly full: large known files, snapshots, downloads, app data and system reserve should be measured before deletion. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · USB not recognized

Dell Alienware m16 R2 USB or Thunderbolt device is not recognized

Dell Alienware m16 R2 USB or Thunderbolt device is not recognized: device power, cable capability, hub/dock, port, permissions and driver should be isolated. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · not charging

Dell Alienware m16 R2 will not charge

Dell Alienware m16 R2 will not charge: adapter wattage, cable, port/dock, battery temperature and firmware should be separated. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · Wi-Fi

Dell Alienware m16 R2 will not connect to Wi-Fi or keeps disconnecting

Dell Alienware m16 R2 will not connect to Wi-Fi or keeps disconnecting: one network, all networks, VPN/security software, driver and radio hardware produce different fixes. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · won't start

Dell Alienware m16 R2 will not turn on or start

Dell Alienware m16 R2 will not turn on or start: power delivery, battery/charger, display state and startup hardware should be separated before recovery. Scoped to Alienware m16 R2, with the model boundary and safe stop points made explicit.

Open record Dell · battery drain

Dell Inspiron 14 5440 battery drains too quickly

Dell Inspiron 14 5440 battery drains too quickly: battery condition, display/radio use, background processes and sleep behavior should be measured. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · Bluetooth

Dell Inspiron 14 5440 Bluetooth is missing, will not pair or disconnects

Dell Inspiron 14 5440 Bluetooth is missing, will not pair or disconnects: accessory state, competing hosts, driver/firmware and radio hardware should be isolated. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · camera

Dell Inspiron 14 5440 camera or microphone is not working in calls

Dell Inspiron 14 5440 camera or microphone is not working in calls: privacy permission, physical shutter/mute, one app, device selection and hardware should be separated. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · external monitor

Dell Inspiron 14 5440 external monitor is not detected or uses the wrong resolution

Dell Inspiron 14 5440 external monitor is not detected or uses the wrong resolution: port capability, adapter/cable, display input, driver and bandwidth must align. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · no sound

Dell Inspiron 14 5440 has no sound or distorted audio

Dell Inspiron 14 5440 has no sound or distorted audio: output routing, mute/volume, one app, Bluetooth/dock and hardware should be separated. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · slow

Dell Inspiron 14 5440 is running very slowly

Dell Inspiron 14 5440 is running very slowly: cPU, memory, storage, temperature, updates and one process should be measured instead of cleared blindly. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · stuck startup

Dell Inspiron 14 5440 is stuck at startup, automatic repair or recovery

Dell Inspiron 14 5440 is stuck at startup, automatic repair or recovery: external devices, storage health, encryption/recovery keys and the exact startup stage determine safe action. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · keyboard

Dell Inspiron 14 5440 keyboard or trackpad is not working correctly

Dell Inspiron 14 5440 keyboard or trackpad is not working correctly: one key/region, accessibility settings, debris/liquid, external devices and hardware should be separated. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · update failed

Dell Inspiron 14 5440 operating-system update will not install

Dell Inspiron 14 5440 operating-system update will not install: eligibility, power, storage, date/time, network and update service should be checked before recovery. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · overheating

Dell Inspiron 14 5440 runs hot or the fan is loud

Dell Inspiron 14 5440 runs hot or the fan is loud: workload, blocked airflow, firmware and cooling hardware should be separated. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · black screen

Dell Inspiron 14 5440 screen is black, blank or flickering

Dell Inspiron 14 5440 screen is black, blank or flickering: internal display, brightness/lid state, graphics path and external monitor should be isolated. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · storage full

Dell Inspiron 14 5440 storage is full or nearly full

Dell Inspiron 14 5440 storage is full or nearly full: large known files, snapshots, downloads, app data and system reserve should be measured before deletion. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · USB not recognized

Dell Inspiron 14 5440 USB or Thunderbolt device is not recognized

Dell Inspiron 14 5440 USB or Thunderbolt device is not recognized: device power, cable capability, hub/dock, port, permissions and driver should be isolated. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · not charging

Dell Inspiron 14 5440 will not charge

Dell Inspiron 14 5440 will not charge: adapter wattage, cable, port/dock, battery temperature and firmware should be separated. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · Wi-Fi

Dell Inspiron 14 5440 will not connect to Wi-Fi or keeps disconnecting

Dell Inspiron 14 5440 will not connect to Wi-Fi or keeps disconnecting: one network, all networks, VPN/security software, driver and radio hardware produce different fixes. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · won't start

Dell Inspiron 14 5440 will not turn on or start

Dell Inspiron 14 5440 will not turn on or start: power delivery, battery/charger, display state and startup hardware should be separated before recovery. Scoped to Inspiron 14 5440, with the model boundary and safe stop points made explicit.

Open record Dell · battery drain

Dell Inspiron 16 5640 battery drains too quickly

Dell Inspiron 16 5640 battery drains too quickly: battery condition, display/radio use, background processes and sleep behavior should be measured. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · Bluetooth

Dell Inspiron 16 5640 Bluetooth is missing, will not pair or disconnects

Dell Inspiron 16 5640 Bluetooth is missing, will not pair or disconnects: accessory state, competing hosts, driver/firmware and radio hardware should be isolated. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · camera

Dell Inspiron 16 5640 camera or microphone is not working in calls

Dell Inspiron 16 5640 camera or microphone is not working in calls: privacy permission, physical shutter/mute, one app, device selection and hardware should be separated. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · external monitor

Dell Inspiron 16 5640 external monitor is not detected or uses the wrong resolution

Dell Inspiron 16 5640 external monitor is not detected or uses the wrong resolution: port capability, adapter/cable, display input, driver and bandwidth must align. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · no sound

Dell Inspiron 16 5640 has no sound or distorted audio

Dell Inspiron 16 5640 has no sound or distorted audio: output routing, mute/volume, one app, Bluetooth/dock and hardware should be separated. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · slow

Dell Inspiron 16 5640 is running very slowly

Dell Inspiron 16 5640 is running very slowly: cPU, memory, storage, temperature, updates and one process should be measured instead of cleared blindly. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · stuck startup

Dell Inspiron 16 5640 is stuck at startup, automatic repair or recovery

Dell Inspiron 16 5640 is stuck at startup, automatic repair or recovery: external devices, storage health, encryption/recovery keys and the exact startup stage determine safe action. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · keyboard

Dell Inspiron 16 5640 keyboard or trackpad is not working correctly

Dell Inspiron 16 5640 keyboard or trackpad is not working correctly: one key/region, accessibility settings, debris/liquid, external devices and hardware should be separated. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · update failed

Dell Inspiron 16 5640 operating-system update will not install

Dell Inspiron 16 5640 operating-system update will not install: eligibility, power, storage, date/time, network and update service should be checked before recovery. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · overheating

Dell Inspiron 16 5640 runs hot or the fan is loud

Dell Inspiron 16 5640 runs hot or the fan is loud: workload, blocked airflow, firmware and cooling hardware should be separated. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · black screen

Dell Inspiron 16 5640 screen is black, blank or flickering

Dell Inspiron 16 5640 screen is black, blank or flickering: internal display, brightness/lid state, graphics path and external monitor should be isolated. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · storage full

Dell Inspiron 16 5640 storage is full or nearly full

Dell Inspiron 16 5640 storage is full or nearly full: large known files, snapshots, downloads, app data and system reserve should be measured before deletion. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · USB not recognized

Dell Inspiron 16 5640 USB or Thunderbolt device is not recognized

Dell Inspiron 16 5640 USB or Thunderbolt device is not recognized: device power, cable capability, hub/dock, port, permissions and driver should be isolated. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · not charging

Dell Inspiron 16 5640 will not charge

Dell Inspiron 16 5640 will not charge: adapter wattage, cable, port/dock, battery temperature and firmware should be separated. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · Wi-Fi

Dell Inspiron 16 5640 will not connect to Wi-Fi or keeps disconnecting

Dell Inspiron 16 5640 will not connect to Wi-Fi or keeps disconnecting: one network, all networks, VPN/security software, driver and radio hardware produce different fixes. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · won't start

Dell Inspiron 16 5640 will not turn on or start

Dell Inspiron 16 5640 will not turn on or start: power delivery, battery/charger, display state and startup hardware should be separated before recovery. Scoped to Inspiron 16 5640, with the model boundary and safe stop points made explicit.

Open record Dell · battery drain

Dell Latitude 5450 battery drains too quickly

Dell Latitude 5450 battery drains too quickly: battery condition, display/radio use, background processes and sleep behavior should be measured. Scoped to Latitude 5450, with the model boundary and safe stop points made explicit.

Open record Dell · Bluetooth

Dell Latitude 5450 Bluetooth is missing, will not pair or disconnects

Dell Latitude 5450 Bluetooth is missing, will not pair or disconnects: accessory state, competing hosts, driver/firmware and radio hardware should be isolated. Scoped to Latitude 5450, with the model boundary and safe stop points made explicit.

Open record Dell · camera

Dell Latitude 5450 camera or microphone is not working in calls

Dell Latitude 5450 camera or microphone is not working in calls: privacy permission, physical shutter/mute, one app, device selection and hardware should be separated. Scoped to Latitude 5450, with the model boundary and safe stop points made explicit.

Open record Dell · external monitor

Dell Latitude 5450 external monitor is not detected or uses the wrong resolution

Dell Latitude 5450 external monitor is not detected or uses the wrong resolution: port capability, adapter/cable, display input, driver and bandwidth must align. Scoped to Latitude 5450, with the model boundary and safe stop points made explicit.

Open record Dell · no sound

Dell Latitude 5450 has no sound or distorted audio

Dell Latitude 5450 has no sound or distorted audio: output routing, mute/volume, one app, Bluetooth/dock and hardware should be separated. Scoped to Latitude 5450, with the model boundary and safe stop points made explicit.

Open record Dell · slow

Dell Latitude 5450 is running very slowly

Dell Latitude 5450 is running very slowly: cPU, memory, storage, temperature, updates and one process should be measured instead of cleared blindly. Scoped to Latitude 5450, with the model boundary and safe stop points made explicit.

Open record Dell · stuck startup

Dell Latitude 5450 is stuck at startup, automatic repair or recovery

Dell Latitude 5450 is stuck at startup, automatic repair or recovery: external devices, storage health, encryption/recovery keys and the exact startup stage determine safe action. Scoped to Latitude 5450, with the model boundary and safe stop points made explicit.

Open record Dell · keyboard

Dell Latitude 5450 keyboard or trackpad is not working correctly

Dell Latitude 5450 keyboard or trackpad is not working correctly: one key/region, accessibility settings, debris/liquid, external devices and hardware should be separated. Scoped to Latitude 5450, with the model boundary and safe stop points made explicit.

Open record Dell · update failed

Dell Latitude 5450 operating-system update will not install

Dell Latitude 5450 operating-system update will not install: eligibility, power, storage, date/time, network and update service should be checked before recovery. Scoped to Latitude 5450, with the model boundary and safe stop points made explicit.

Open record Dell · overheating

Dell Latitude 5450 runs hot or the fan is loud

Dell Latitude 5450 runs hot or the fan is loud: workload, blocked airflow, firmware and cooling hardware should be separated. Scoped to Latitude 5450, with the model boundary and safe stop points made explicit.

Open record Dell · black screen

Dell Latitude 5450 screen is black, blank or flickering

Dell Latitude 5450 screen is black, blank or flickering: internal display, brightness/lid state, graphics path and external monitor should be isolated. Scoped to Latitude 5450, with the model boundary and safe stop points made explicit.

Open record Dell · storage full

Dell Latitude 5450 storage is full or nearly full

Dell Latitude 5450 storage is full or nearly full: large known files, snapshots, downloads, app data and system reserve should be measured before deletion. Scoped to Latitude 5450, with the model boundary and safe stop points made explicit.

Open record

Find your model

Model numbers covered, and where each one's answers are

Match the identifier on your appliance or device label to a row below. Dell answers here are scoped to these patterns, and a model outside them is deliberately not claimed rather than covered by a page that guesses.

Family	Model numbers	Published specs
XPS 13 9340	XPS 13 9340	3 researched
XPS 14 9440	XPS 14 9440	3 researched
XPS 16 9640	XPS 16 9640	3 researched
Inspiron 14 5440	Inspiron 14 5440	3 researched
Inspiron 16 5640	Inspiron 16 5640	3 researched
Latitude 7450	Latitude 7450	3 researched
Latitude 5450	Latitude 5450	3 researched
Precision 5690	Precision 5690	3 researched
Alienware m16 R2	Alienware m16 R2	3 researched
OptiPlex 7020	OptiPlex 7020	3 researched

Structured depth, not empty permutations

Every published record carries a direct answer, scope, ordered fixes, risk notes and sources.

Device and manufacturer hubs share a consistent record system, but each answer carries the relevant controls, fault boundaries, consequences and official support entry point for that platform.

See the publication gate