I noticed that my laptop stopped charging so I opened it up to diagnose the problem. I originally thought it was either the charger port or the charger but when I plugged in the charger while it was exposed I noticed something start smoking. I immediately unplugged the charger and battery and took a look at what was smoking. It was something within the red box right next to the processor. It wasn't the processor or the GPU as the heatsink was still room temperature. It was definitely one the parts within that red box area because when I touched that area it burned my finger. What part is causing this and/or how can I fix this?
I have a charger with that I can toggle the voltage on and when I toggle the voltage to 15V the power light flashes and that part doesn't start smoking. However, when I increase the voltage to 16V or above, the part starts smoking and the power light remains constant. I'm guessing that it doesn't smoke at 15V because it's not enough to power the laptop but I'm not sure. It was originally charging at 19.5V with no issues whatsoever. I have only tried 15V, 16V, and 18.5V so I'm not sure if it applies only to certain voltages or above a certain voltage.
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System:
Model: HP Elitebook 8470p
Processor: Intel i5 3340m
Video Card: AMD Radeon HD 7570M
RAM: 8GB DDR3
HDD: 160GB HDD
OS: Windows 10 Pro 64bit
I have a charger with that I can toggle the voltage on and when I toggle the voltage to 15V the power light flashes and that part doesn't start smoking. However, when I increase the voltage to 16V or above, the part starts smoking and the power light remains constant. I'm guessing that it doesn't smoke at 15V because it's not enough to power the laptop but I'm not sure. It was originally charging at 19.5V with no issues whatsoever. I have only tried 15V, 16V, and 18.5V so I'm not sure if it applies only to certain voltages or above a certain voltage.
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System:
Model: HP Elitebook 8470p
Processor: Intel i5 3340m
Video Card: AMD Radeon HD 7570M
RAM: 8GB DDR3
HDD: 160GB HDD
OS: Windows 10 Pro 64bit