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The chassis and power supply are also important components of desktop computers, but few people pay special attention to these two. Most people only care about video card, processor or memory card, motherboard, etc. In fact, on case and block power, The knowledge that needs to be understood is no less than that of other equipment.

The higher power supply rating, better?

The wattage rating of power supply should first be determined by your own needs. If you do not upgrade computer later, rated power can meet needs of host. For example, if a host needs 300W, then you only need to buy 350W. However, if computer is updated later, such as some gamers, they usually update computer regularly. At this time, power should naturally be much higher than required power to avoid need to replace the power supply. after a later update.

How can you tell if a power supply is genuine?

The authenticity of power supply is difficult to distinguish. After all, current technology of forgery is not simple. Generally, we don't dare to disassemble power supply at will when we buy it. Therefore, it is difficult to judge simply by appearance. For ordinary users, it is best choice not to be greedy for small things and buy from ordinary channels.

What are benefits of 80PLUS certification?

This certification can be seen as a kind of energy efficiency certification. For example, energy saving labels on electrical appliances are same. 80PLUS has different levels. The higher level, higher efficiency of electrical energy conversion. , More power saving.

What are symptoms of a bad power supply?

If power supply does not meet requirements, then you will definitely not be able to use your computer normally. For example, frequent reboots, inability to start normally, or strong heat and noise. A serious problem is that voltage is unstable and equipment can be burned.

Is a silent power supply really silent?

The power supply has a fan and should make a sound when fan spins. Now some power supplies are labeled as silent, so you need to distinguish it yourself. fan The lower fan speed, sound is naturally lower, but to reduce fan speed, care must be taken that heat dissipation is not too high, which means conversion efficiency of power supply must be high, so it is necessary to choose a power supply with a high level of 80PLUS certification, and It is best to combine it with a smart thermostat.

Are radiation resistant cases better than regular cases?

The characteristics of anti-radiation chassis are completely enclosed, with EMI fragments, and top, left and right side panels are painted on one side. The heat dissipation of anti-radiation chassis is relatively poor. Under normal circumstances, amount of computer radiation is very small, and there is generally no need to consider radiation issues.

Should I choose a case with a fan?

Currently, mid-range desktops are around 80 degrees Celsius. A single CPU cooler, PSU fan, and graphics card fan are not enough to dissipate heat, so a case with fans is best choice for mid-range. - range consoles or game consoles., can form a good air duct and smoothly dissipate accumulated heat inside case.

Is there a warranty on chassis components?

Some manufacturers provide warranties for chassis components such as switches or USB ports. Of course, usually these components are not easily damaged.

Which is better: screw or screwless chassis?

A screw-mounted chassis is definitely best choice because it's more stable, but if you often take apart and reinstall your computer, then a chassis without screws is best, otherwise it is often very problematic to remove screws. , and even harder if you lose it.

How to design a duct?

The chassis air duct must be visible and air duct must cover CPU and GPU to remove heat from these two large heat generating blocks. But pay attention when designing duct. Some chassis may have more fans, but not all of them need to be installed. Too many fans can disrupt duct and cause heat to build up in chassis.