All laptop USB ports stopped working at once. Laptop stopped recognizing any USB device plugged into any USB port.
1. Software problem.
2. USB controller failure.
Tags: USB port problems
When you push on the power button, the power light on the laptop turns on but the screen shows no image. The laptop screen remains black and blank. Video on the external monitor also not working even though it used to work fine before.
1. Memory failure.
2. Video card failure.
3. Motherboard failure.
Spontaneously the laptop screen will “freeze” the current image and then slowly turn white with some faint gray blotches. If I move the top of the laptop toward me, sometimes the image comes back to normal. If I move it backward, then the image freezes and goes white again. The laptop works fine with the external monitor.
1. Bad connection between video cable and LCD screen.
2. LCD screen failure.
After upgrading the hard drive it’s not detected by the laptop BIOS. The hard drive doesn’t appear in the BIOS.
One half of the laptop screen is completely black. The second half of the screen works properly.
LCD screen failure.
Tags: Bad image on screen
The laptop shuts down on its own when playing games. All other time it works fine.
Tags: Laptop shuts down
It takes a few minutes to boot my laptop to the desktop. I have to wait for a long time before I can run programs or open windows.
1. Not enough memory installed.
2. Lots of software applications loading on startup.
3. Hard drive is failing.
The laptop shuts down while installing Windows. The installation process runs fine for a while but after some time the laptop shuts down on its own. Same problem happens if you start the installation process again.
1. Laptop overheating.
2. Memory failure.
When the laptop is turned on, the screen remains completely black/blank and the cooling fan starts running at full speed. The fan runs at unusually high RPM until you power down the laptop.