The main problems which could arise during the Apple iMac use are the consequences of total absence of preventive and maintenance works.
elements of heat removal.
It is important to understand that during the long-term monoblock use it collects dust and the cooling system loses its factory settings. As a result, the device overheats systematically and the wear process of basic elements could be faster, and the device could be broken down.
In such cases the cooling system cleaning and the thermal grease replacement are obligatory procedures. It is important to use similar thermal grease, otherwise there could be sad consequences.
Preventive and maintenance procedures should be carried out at least in two years and once a year in case of the constant use of computer in a dusty room