Here’s how you fix heat related problems. Cleaning the fan and heat sink from dust should fix it. It happens because the fan heat sink is clogged with dust and the processor not cooling down properly. Also, the cooling fan runs louder than usual. The laptop runs properly but after a while it freezes or shuts down without any warning. If the laptop still makes noise, most likely it’s bad fan. Back up all personal data as soon as possible and replace the hard drive.Īlso, you can remove the hard drive and stat the laptop. If the fan doesn’t spin but the the laptop makes noise, probably it’s coming from the hard drive. In most cases this noise is coming from the cooling fan or hard drive. The laptop turns on and everything works fine, except it makes some constant weird grinding or rattling noise. If it doesn’t help, probably the motherboard failed. You can try reseating/replacing memory as I described in the Problem 2. After a few seconds it turns off by itself. ![]() The laptop turn on without showing any image on the screen. Read this guide for bare bone system troubleshooting. If the laptop still doesn’t turn on, most likely you have failed motherboard or processor. – If reseating/replacing memory doesn’t help, try removing the hard drive, DVD drive, modem, wireless card, keyboard, etc… In other words, disassemble the laptop to bare minimum and test again. You can try removing memory modules one by one and test the laptop with only one module installed. In this case you can try reseating memory modules to make sure they are making good contact with the slot. It’s possible one of the memory modules failed. The screen is completely black and blank. The laptop turns on, power LED lights up, cooling fan works but nothing appears on the screen. Here are some tips for testing AC adapter and DC jack.Īlso, make sure to read step-by-step instructions for troubleshooting dead laptops. Otherwise get ready to buy a new computer. The motherboard has to be replaced, if it’s not too expensive. In this case the DC jack has to be replaced. – DC jack failed and the motherboard doesn’t receive any power from the adapter. In this case test the AC adapter with a voltmeter. – The AC adapter failed and the battery has no charge left. The laptop appears to be completely dead, makes no sounds, no indications of life. When you push on the power button, nothing happens. If it's neither the battery nor the adapter, it could be a motherboard fat, which would be more challenging.When you plug the AC adapter into the laptop, there are no lights turning on at all. ![]() ![]() Replcement batteries and adapters are fairly readily available on places like eBay, but don't go for the cheapest or one from a seller with less than an excellent reputation as there are some poor quality ones out there, especially for popular brands of laptop. So long as the plug on the laptop end of the adapter is the same size, and the output voltage written on the adapter is the same, it should be compatible. Perhaps you can find a friend or colleague who has an HP with the same kind of adapter. If it dies after a few seconds like you described just on mains power, it could well be the mains adapter. If it now works, you need a new battery, or content yourself with running it just on mains. Take the battery out and try running it just on the mains adapter. Laptops will normally work just fine off mains power alone, but a dead battery (I mean truly dead, not just worn out) could stop it working. Impossible to say for certain, but most likely it's either the battery or the mains adapter.
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