Hello
I have this old laptop that i really like, i use it mainly for programming. I've had overheat problems several times in the past, due to clog in the airflow or a intermittent fault in the fan. All those times the problem was really simple and obvious to solve.
But this time, the problem is a little more complicated. The computer only overheats when a USB device is connected (more like, when a USB device is drawing power, since the webcam its connected by USB, but the system only heatsup when i turn it on). If no USB Devices is present, it works perfectly. This problem seems to be present since some time already, only now i got to isolate the problem and identify that the USB devices are the cause. Also, this time when te laptop overheats, the screen glitches for around 10-20 sec and then shutdown (when the overheat was due to no enought airflow in the heat pipes, the screen will go black and shutdown). After the shutdown, i get a pre boot error screen saying that the system has overheated, the same that apears when the cpu overheats. That's why i assume that the problem is heat.
Here is a image of the screen when this happens.
And thats a really big problem, given that i do microcontroller programming in university, i am always with at least one programmer connected by USB.
I have tested both windows and linux, and always all the temperatures just before the overheat are, at most, 50 ºC (122ºF), and usually even below 30 ºC, thats where i get lost. This CPU is rated for a maximum of 105 ºC
I have replaced the thermal paste in the CPU and GPU, cleaned everything in the airflow path, i have replaced the thermal pad in the chipset (where i suspect, is the problem). I dont know what else to do.
My last option is to find the schematic for this laptop and check everithing in the power path for USB, but i lack experience in this field, so it could take me days.
My english is probably a little broken, but i did what i could, please correct me if you will.
Any help would be greatly appreciated!
I have this old laptop that i really like, i use it mainly for programming. I've had overheat problems several times in the past, due to clog in the airflow or a intermittent fault in the fan. All those times the problem was really simple and obvious to solve.
But this time, the problem is a little more complicated. The computer only overheats when a USB device is connected (more like, when a USB device is drawing power, since the webcam its connected by USB, but the system only heatsup when i turn it on). If no USB Devices is present, it works perfectly. This problem seems to be present since some time already, only now i got to isolate the problem and identify that the USB devices are the cause. Also, this time when te laptop overheats, the screen glitches for around 10-20 sec and then shutdown (when the overheat was due to no enought airflow in the heat pipes, the screen will go black and shutdown). After the shutdown, i get a pre boot error screen saying that the system has overheated, the same that apears when the cpu overheats. That's why i assume that the problem is heat.
Here is a image of the screen when this happens.And thats a really big problem, given that i do microcontroller programming in university, i am always with at least one programmer connected by USB.
I have tested both windows and linux, and always all the temperatures just before the overheat are, at most, 50 ºC (122ºF), and usually even below 30 ºC, thats where i get lost. This CPU is rated for a maximum of 105 ºC
I have replaced the thermal paste in the CPU and GPU, cleaned everything in the airflow path, i have replaced the thermal pad in the chipset (where i suspect, is the problem). I dont know what else to do.
My last option is to find the schematic for this laptop and check everithing in the power path for USB, but i lack experience in this field, so it could take me days.
My english is probably a little broken, but i did what i could, please correct me if you will.
Any help would be greatly appreciated!
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