Hp laptop screen goes black but still running

#Hp laptop screen goes black but still running how to

#Hp laptop screen goes black but still running how to

Read how to replace the keyboard.ДЄ key got separated from the laptop keyboard. Most likely the keyboard failed and they are not repairable. Some keyboard keys do not work at all or type wrong characters. Here are examples of failed video and explanations how to narrow down the problem.ДЄlso read why display shows strange colors. Also can be failed video cable or screen. вЂ“ If the problem appears only on the laptop screen, this can be related to one of the following: poor connection between the video cable and motherboard or screen. If you see the same garbled image on the external screen, most likely the graphics card failed. First of all, test your laptop with an external monitor or TV. The laptop turns on properly but has a distorted or garbled image on the screen. Read how to troubleshoot backlight failure. In order to troubleshoot this, youвЂ™ll need some spare parts: either new working inverter or known good backlight lamp. When either one fail, the backlight stops working. Most likely itвЂ™s either failed screen inverter or backlight lamp (CCFL) failure. In some cases the screen light never starts and all you can see is a very faint image. The image still appears on the screen but itвЂ™s very dark. The laptop starts properly but after a while the screen light turns off. Here are some tips for charging problems.

If the battery charges only after you adjust the position of AC adapter tip inside the connector, most likely this the DC jack failed. Also, try running the laptop just from AC adapter with battery removed.В If it runs fine from AC adapter, most likely itвЂ™s either bad battery or failed motherboard. If it doesnвЂ™t charge completely try reconnecting the battery first. It doesnвЂ™t charge at all or charges only after you adjust the position of AC adapter plug inside the power connector. HereвЂ™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 itвЂ™s bad fan. Back up all personal data as soon as possible and replace the hard drive.ДЄlso, you can remove the hard drive and stat the laptop. If the fan doesnвЂ™t spin but the the laptop makes noise, probably itвЂ™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 doesnвЂ™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 doesnвЂ™t turn on, most likely you have failed motherboard or processor. вЂ“ If reseating/replacing memory doesnвЂ™t help, try removing the hard drive, DVD drive, modem, wireless card, keyboard, etcвЂ¦ 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. ItвЂ™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.ДЄlso, 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 itвЂ™s not too expensive. In this case the DC jack has to be replaced. вЂ“ DC jack failed and the motherboard doesnвЂ™t receive any power from the adapter. In this case test the AC adapter with a voltmeter. вЂ“ 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. When you plug the AC adapter into the laptop, there are no lights turning on at all.