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ASUS Q400A-BHI7N03 Troubleshooting

Laptop Will Not Turn On ¶ 

The laptop does not turn on when the power button is pressed.

Faulty Power Supply ¶ 

Make sure the laptop is plugged in and the laptop charger being used is working. If the charge indication lights on the charger and laptop are not on, consider buying a new power supply.

Faulty Battery ¶ 

Make sure that the power supply is working, then plug in the laptop and check if the charging light is on. If the battery was drained completely, it can take awhile before the laptop will be able to be turned on. While the laptop is still plugged in, try turning on the laptop. Once the laptop is running, check that the battery is charging. If it is not charging, the battery needs to be replaced. Once the laptop is fully charged, try unplugging it. If the laptop turns off or immediately indicates a low charge, the battery needs to be replaced. Replace the battery using this guide.

Faulty Motherboard ¶ 

The computer will not turn on despite being plugged in and charging. Depending on how much the motherboard costs, you can either replace it or buy a new computer.

Laptop Overheating ¶ 

Your computer overheats and the performance of your laptop either slows down or shuts down completely.

Dusty Fan(s) ¶ 

Overheating can be caused if there is too much dust or other objects stuck in your laptop’s fan. You can use a compressed air duster but may need to take apart your laptop to clean it by hand or replace the fan completely if it doesn’t spin at all or makes concerning noises.

Blocked Air Vents ¶ 

Laptops may accumulate dust if there isn’t proper airflow. You can check your work area for anything that may be obstructing the air vents. Air vents can also collect dust over time. You can either use a compressed air duster or, if conditions are very severe, take apart your laptop and clean it by hand to remove whatever is hindering air flow.

Laptop Keys Unresponsive ¶ 

Your laptop keys either don’t respond, have a slow feedback, or get stuck when pressed.

Dirty Keyboard ¶ 

Keys can be cleaned by lifting or removing it entirely and cleaning or removing any dirt or other objects stuck underneath it. To remove a key, use this guide.

Missing Keys ¶ 

If a key is missing or breaks off, you can replace them.

Laptop Not Reading CDs/DVDs ¶ 

Your computer cannot recognize any CD or DVD that is inserted.

Broken Disk Drive ¶ 

If you insert a CD or DVD into the disk drive and the laptop cannot read the disk, then the disk drive needs to be replaced. To remove the optical drive, use this guide.

Laptop Running Slower ¶ 

Your laptop runs slowly during normal or intensive use.

Malfunctioning RAM ¶ 

If your laptop freezes or crashes during normal operation or you notice that files are being corrupted, the RAM in the laptop may have been damaged but can be replaced. To replace the RAM, use this guide.

Not Enough RAM ¶ 

If your laptop freezes or crashes during intensive operations, this can be a sign that there is not enough RAM installed but you can upgrade them.


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