Lenovo T400s problems after cleaning

Hello

I have a Lenovo T400s, which was full of dust, due to the high temperatures and the slow performance, I decided to clean the cooler all by myself.

After carefully removing each part, I managed to reach the cooler and clean. I put up successfully each piece of hardware, with the temperature now to a maximum of 70 degrees Celsius in mode performance. Yet, there are a lot of questions that I am yet to repair:

1. the overall performance of the laptop are slower than before, with the browser and all other apps clearly slowed by something, even after the start of the laptop.

2. sometimes when I plug in the power cord, the laptop suddenly crashes. It happened to me several times during the loading of the operating system or when I was working on the laptop. After I cleaned up the laptop, I got an error saying "plugged in, not charging", but I fixed it by removing and the battery connection.

3. the Bluetooth adapter doesn't seem to work. Whenever I try to connect a Bluetooth mouse, the laptop freezes.

An idea about the origin of these problems and how I could fix them? Thanks in advance.

I'm under Winodws 8 and the standard hardware configuration of the laptop, with no upgrade.


Tags: ThinkPad Notebooks

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