Laptop overheating

When your laptop starts running slow maybe it’s time for some maintenance.

Laptop overheating cause:

A common reason for a laptop to run slow is overheating. It is usually caused by dirt gathered between the cooling fan and the copper heatsink. This dirt builds up, blocks the airflow from the cooling fan towards the copper heatsink, which main purpose is to drive away the heat from the processor. When the airflow is blocked, the processor is no longer capable of giving away its temperature and causes your laptop overheating. This results as slow operation, random stops, unexpected restart ant etc.

Most people when buy a new laptop (notebook) don’t fully understand the importance of keeping it away from dust and soft surfaces. It is very important that you use your laptop as prescribed in the instructions.

Laptop overheating solution:

Important! If your laptop is in its guarantee period you should take it to your guarantee computer service, because if you open it yourself the guarantee may become invalid.

If you feel uncertain you should also turn to a computer service for help.

Some machines however provide an eased access to their cooling parts as cooling fan and copper heatsink. Such laptops are easy to clean and most users will be capable to do it themselves. The example below is of a Uniwill L51II0 matrix. To have access to the area between the copper heatsink and the cooling fan you only need to take of the “CPU/Hard drive” cover.

laptop overheating

In this particular case cleaning the dirt and vacuum cleaning the other laptop parts helped to avoid overheats and random restarts.

Overheating useful advices:

– Do not put your laptop on soft surfaces (blankets, sofas and etc.) while operational;
– Avoid using your computer on a dusty desks (clean the desk before work);
– Do not block the airflow to/from the cooling fan;
– Use your laptop according to manufacturer’s instructions.

PHP code to check if a string is a part of another string

That is a fairly simple peace of code that I always get to search for when I need it. That is why I decided to put it into my blog so that I could have an eased access to it when I need it.

This simple code helps me find whether a given string is a part of a larger string.

if(strpos($text_to_search, $text_to_find)===true)
     //some code
    //another code

The key here is the triple equal sign…

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How to boost your wifi signal?!

You have an Internet connection that has been connected to a wireless emitter in order to provide wireless connectivity, but in some areas you have a lack of signal. What can you do to strengthen  that wifi signal up?

In this article I will try to give you some simple advices to help you improve your wireless device performance.

Let’s assume that you do not have the opportunity to move your device along, otherwise this is one of the best ways to adjust your signal. So here is what you can do:

1. Adjust wireless device antenna direction. The best direction of your antenna is the one that has a 90 degree angle (see the picture bellow) with the imaginary line drawn between the wireless device and your laptop (or any other wireless device, the green line between the laptop and the wireless).


On the figure shown above, the best direction of your antenna is shown in green. The blue position of the antenna shows a relevantly good antenna position. The position coloured in red is worse in this particular case, the weakest signal follows the direction of the antenna (0/180 degrees with the imaginary line of the position of your laptop). If the antenna of your wireless emitter point toward your laptop – you will experience a low signal!

2. Sometimes in the security settings of your wireless emitter, there is an option that lowers the power of the wifi signal for security reasons. Check if your device has such options, make sure to allow full signal strength.

3. If the first two steps are not applicable for any reason, you can boost your signal via wifi antenna booster such antenna can increase the level of you signal. The price of such boosters is near 5 US dollars 3.5 Euros. It attaches to your device just as a regular antenna and it’s fairly easy for setting up.

For other solutions, on larger areas, that require higher levels of the signal an wifi signal amplifier might be a good choice. Such amplifiers might require separate power supply.

Rainbow – authorized service center

Rainbow Service are an authorized service center for Rexair Rainbow cleaning systems. They offer wide range of spare parts for Rainbow cleaning systems. The next step for the business was to go online.  Online sales of spare parts and consumables gives a straight contact with the customers which is very important for such business models.

Building upon the initial website, we’ve added an online shop. Main goal was to separate the spare parts per machine, giving the customer the opportunity to navigate easily through the website and to be able to identify in a certain way what he needs. Another goal was of course  to be able to to give all the information visitors would like to know. The shop keeps track of orders and saves them in a database specially designed for Rainbow purposes.


Word is repaginating – “dancing” table problem!

I refer to a table as a dancing table when a table in your Microsoft Office Word document changes it’s width on its own (as shown in the video example below), most often this happens when you have a table within the header and footer of you document.

The reason for such problem to occur is that Microsoft Office Word calculates in a wrong way the table width. This is due to different Page Set up settings on different sections in one document. When the table width is percent and the table spreads over more than one page the width calculation goes wrong and the table starts to “dance” from one width to another.

To stop this error, which often causes repaginating,  you will need to enter the table width in points/inches/centimetres. If you for any reason want to get 100% width you can first adjust the parameter to 100% and than switch it back to points – this rule is valid for any percentage that you might want to achieve.

One other tip is that if your table is in the header and footer section of your document and you have pages with different Page Set up like portrait and landscape you will need to put section break between each Page Set up change, from portrait to landscape and back from landscape to portrait. Than you would remove the “Same as previous” setting in your header and set different table widths for each table.

With large documents such “dancing” tables can lead to repaginating and slow operation. That is why you should always try to avoid using percentage as a table width where tables spread on more than one page!