Laptop Dead On Arrival
Friday, 26. August 2011
If your laptop is completley dead there are a number of causes for this issue. Let me help you to understand the way an engineer will inspect your laptop if he finds it dead on arrival. The first thing an engineer will check is the charger. An onsite pc repair engineer will always do this first. He will test it with a multimeter to make sure the voltage is constant. If the charger is giving ou the voltage required he will remove the battery and try plugging the charger into the laptop. If the laptop is still dead and not booting up the next thing he will do is open the laptop up completly. The motherboard will be removed and inspected for liquid damage, over heating, burnt chips on the motherboard. This is done as just a 30 second check over the motherboard. The next step is to plug the charger in the motherboard and check that the power is entering the motherboard. If the voltage is passing into the motherboard and the laptop is still not turning on he will move onto the advanced stage. This is an advanced stage because most technicinans at this point will tell a customer they need a new motherboard. An enginner who understands motherboards like ourselves will test the tiny components. Starting with fuses and moving on to capacitors resistors diodes and 8 leg integrated circuit chips. The next step is to replace the power manager chip and the finally the chipset. On a laptop motherboard there is often more than a thousand chips. only 3 chips are special. They are the north bridge and south bridge chipsets and the bga graphics card chipset. These chips are very difficult to remove and replace. Some companies can repair these chips one of these is Laptop Repairs Canary Wharf they are one of the uk laptop repair companies that can carry out reflow work on motherboards. If you have any other issues with a laptop being dead on arrival or will not boot up or turn on you will find some interesting post on our website.
