Some people still say that PC building is like adult LEGO. While both of them involve putting things in the right places, there are no consequences if you mess up with LEGO. Mistakes when building a PC, however, can have undesirable consequences that can sometimes break your components beyond repair. Seasoned builders might not encounter such situations, but those without a few builds under their belt are prone to accidents that can physically damage the components.

6 Denting the radiator or bending the tubes of an AIO cooler

Not cool at all

Installing an AIO liquid cooler is more complicated than working with an air cooler. You need to install the fans on the radiator, and then mount the radiator to the case. During this process, if you aren't careful, it's possible to damage the radiator fins to the point that it negatively affects the flow of the liquid, compromising the cooling performance. When screwing the radiator to the case, using the wrong ones or overtightening the screws can dent the fins beyond salvage.

Although a tiny number of dented fins is common on many radiators, user error can push this into problematic territory. You can also damage the AIO tubes if you don't handle the assembly gently, accidentally bending them with excessive force. This can obviously affect the operation of the cooler, or worse, completely kill it. Claiming warranty in such cases might not go your way, since the manufacturer will conclude that it was user error.

5 Bending an NVMe SSD due to improper installation

First-time builders beware

Installing an NVMe SSD is usually one of the simplest parts of building a PC, but some users could damage the drive if they don't adhere to some precautions. The right way to do it is to align the drive with the M.2 slot at an angle (around 30 degrees), push it gently to insert it into the slot, and then bring the other end down to secure it with a screw or the quick-release slot (if available).

A possible blunder that could occur during this process is lowering the SSD before it's securely inside the M.2 slot, causing pressure on the PCB. This could lead to strain on the drive and damage it, in extreme cases. This seemingly minor mistake can mean serious damage to your wallet, depending on the model and capacity of the drive.

4 Installing the motherboard without standoffs

It still happens

This might feel obvious to most PC builders, but forgetting the motherboard standoffs before securing the board to the case is still a common mistake. It might not be readily apparent to some people that you can't just screw the motherboard directly into the holes you see inside the case. If your case doesn't come with standoffs pre-installed, it's possible to forget them altogether.

In some cases, tightening the screws to the motherboard without installing the standoffs first can damage the PCB or sensitive circuitry on the motherboard. In other cases, it could lead to short circuits that could damage the board permanently, leading to massive headaches and possibly hundreds wasted on a replacement.

3 Breaking the CPU or socket pins

Breaking bad

This is probably self-explanatory, but I'll go into it for the sake of uniformity. Depending on the type of socket of your motherboard — PGA or LGA — the contacts or pins will be on the CPU or the socket, respectively. Although installing the CPU in the motherboard socket doesn't require any force, an inexperienced builder might align the CPU incorrectly, and then push it into the socket, thinking they're doing the right thing.

Needless to say, this can bend or break the pins on the CPU or the socket, rendering either of them inoperable. In some cases, the pins can be straightened back into position, but if the damage is severe, you're left with no option but to order a replacement. CPUs and motherboard sockets are some of the most fragile parts of a PC, and should be handled accordingly. Besides, they also cost a pretty penny to replace, so extra caution is worth it.

2 Ignoring overheating components

The chickens will come home to roost

Overheating is never good, but it's usually not a serious problem if you fix it in time. Ignoring it in hopes that it will go away on its own is an easy way to kill your hardware. While the CPU and GPU receive the most attention with respect to overheating, even your SSD and motherboard can heat up beyond the normal operating temperatures. Prolonged use, in such cases, can shorten the lifespan of your components, and eventually damage them beyond repair.

The reasons for overheating could range from insufficient airflow and dust deposits to a faulty CPU cooler and an incapable SSD heatsink. PC components are designed to withstand higher temperatures, but if you don't eliminate the underlying causes of overheating soon, your hardware is at risk of permanent damage. Regular PC cleaning, optimizing the airflow, and using active cooling for SSDs are some solutions that you should look into if your PC is overheating.

1 Working inside the PC without knowing what you're doing

Know your strengths...and weaknesses

Building a PC successfully is one thing; diagnosing hardware issues is another. You might have built your first PC and gathered some confidence, but messing around inside it without proper precautions is a sure-shot way of creating more problems. Damaging sensitive hardware with electrostatic discharge (ESD) is possible if you don't ground yourself before operating on the PC.

Accidentally bending or breaking a cable, connector, or fan blade is also possible if you aren't careful when removing certain components. Applying undue pressure on the components, forgetting to release the PCIe latch, or breaking the motherboard headers are very real possibilities when you're not completely confident in your diagnostic abilities.

Handle your PC with care

It's easy to ignore obvious precautions when working with PC hardware, but they can go a long way in protecting your components from permanent damage. Whether you're just getting into PC building or have been doing it for years, mistakes can happen. And the more serious ones can break your components beyond repair, causing needless strain on your wallet as well as mental peace.