Computer Repair Shop Tips

Jul 30, 2015   //   by nick   //   Blog, Laptop Repair Shop  //  No Comments
Problem 1:
Computer has complete loss of power.When you plug the AC adapter into the laptop there are no lights turning on at all and power button doesn’t work.

Possible problem
– The AC adapter failed and the battery has no charge left.
– DC jack failed and the motherboard doesn’t receive any power from the adapter.
– Motherboard failed. The motherboard has to be replaced, most times this is cost prohibitive

Problem 2:
Blank LCD screen

The laptop turns on, power LED lights up, cooling fan works but nothing appears on the screen.

Possible problem
– This can be memory failure. It’s possible one of the memory modules failed.
– Hard drive, motherboard,video card/controller or defective monitor.

Problem 3:
Laptop turns on and off repeatedly.

The laptop turns on without showing any image on the screen, auto reboot loop occurring.

Possible problem
– Motherboard failure, failing driver, possible memory issue or even overheating condition may be present.

Problem 4:
Laptop making noises while running.

The laptop turns on and everything works fine except it makes some constant weird grinding or rattling noise.

Possible problem
– In most cases this noise is coming from the cooling fan or hard drive. Take a closer look at the cooling fan.

– If the fan doesn’t spin but the the laptop makes noise it’s likely the hard drive making noise.

– You can also remove the hard drive and boot the laptop. If the laptop still makes noise most likely it’s a bad fan.

Problem 5:
Laptop shuts down or freezes.

The laptop runs properly but after a while it freezes or shuts down without any warning. Bottom is very hot.

Possible problem
– Most likely this is heat related issue. It happens because the fan heat sink is clogged with dust and the processor not cooling down properly.  Also a bad fan.

This is a general explanation to what we see on a daily basis at the shop in Wallingford. Feel free to email

nick@mrcomputerllc.net with questions or call the office @ 203-269-1739 anytime.

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