How to find the problem when your Laptop is Failing

Have you ever met the problem when your laptop was going to fail? Perhaps you hear some weird noises coming from the machine. Perhaps your laptop is taking too long to boot up, or maybe the screen is appearing kind of dim. So you need check out where the problem is, below is some guide about it.
Dead Pixels In The Screen. Usually, if you have dead pixels (unlit pixels) in the laptop screen, you can return them to the manufacturer to get a replacement laptop. This depends on the manufacturer's policy though - some of them only replace the laptop if you have more than say, 9 dead pixels across the whole screen. If you suddenly see several dead pixels in the laptop screen, it usually points towards LCD monitor damage, so watch out for this.
Battery Power Runs Out Too Fast. Yet another common problem is a battery that runs out of juice within 10 minutes, even though it is fully charged. The problem here, fortunately, is usually with the battery unit and not the laptop itself. So in these circumstances, get yourself a new battery. In certain cases, it could be due to faulty circuitry in the laptop body, though this is rare.
Memory Problems. Laptop memory modules are also prone to failure. When you boot the laptop up, try to check the amount of memory (RAM) available in the machine. If you know your laptop has 2GB of RAM, then the boot up screen or BIOS should show 2GB of RAM. If it shows less, it means you have a faulty memory module - which slows down your system immensely.
Weird Hard Disk Noises. This is the most worrying sign from a laptop - a claking, or loud whirring sound from the laptop hard disk drive. Usually, a whirring hard disk drive means that the drive is starting to falter or fail. You should immediately back up all your important data! I once heard such noises from the laptop hard drive and within 2 days, the disk had crashed. And this tell tale sign of hard drive failure is usually spot on - so please watch out for this one.
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