Nowadays, more people are opting for DIY computer assembly. However, for computer novices, a lack of hardware knowledge can lead to pitfalls and disadvantages during the process. Today, Quick Start’s editor will discuss the misconceptions beginners might encounter while building a computer. Of course, this is just personal insight to provide some reference.
More CPU Cores Mean Faster Speed #
This is a common misconception. Having more cores doesn’t necessarily mean better performance. While more cores enhance multitasking ability, there’s a limit to the acceleration of multi-core programs. Even with an unlimited number of cores, the final performance still depends on the single-threaded part. So, unless you’re engaged in highly specialized tasks like design or rendering, there’s no need for a processor with more than four cores.
Cheaper Price Equals Better Value for Same Performance CPU #
Due to AMD and Intel processors needing matching motherboards, the comparison should consider the ‘CPU + compatible motherboard’ cost. For instance, consider CPUs A and B, both using 14nm technology and similar performance. A is $165, and B is $150, so it seems like B is a better deal. But, A can be paired with a $55 motherboard, while B requires a $95 one. In reality, A has a better value. This simple math often leads novices astray.
Higher Memory Frequency Guarantees Better Performance #
Indeed, higher memory frequency theoretically translates to better performance. However, remember that higher-frequency memory depends on your other components. To truly maximize high-frequency memory, you’ll also need a high-end CPU and motherboard, which is a budgetary consideration. Don’t just focus on high frequency while building; choose a memory that suits your needs.
Dual-Channel 8GB*2 Outperforms Single 16GB #
In theory, dual-channel memory outperforms single-channel memory. However, it depends on the situation. For integrated graphics setups, especially AMD Ryzen APU platforms, dual-channel 8GB*2 is recommended to enhance graphics performance. But for discrete graphics setups, choosing a dual-channel 8GB*2 or a single 16GB isn’t as crucial.
Larger VRAM Equals Better Performance #
A graphics card’s processing power is determined by VRAM bandwidth. VRAM bandwidth = (VRAM bus width * VRAM clock frequency) / 8. When purchasing, focus on VRAM frequency and bus width, as these critical data points determine a graphics card’s throughput capacity.
Liquid Cooling Is Better than Air Cooling #
Liquid cooling has higher profit margins, so sellers often push it during PC builds.
In terms of cooling method, water cooling does have higher heat dissipation due to water’s high heat capacity. However, blind pursuit of water cooling isn’t necessary. Modern air cooling technology is mature and offers better value. Unless you’re a professional gamer, CPUs like i3, i5, and i7 have moderate power and can be managed by regular air coolers. Avoid overly large coolers that may interfere with your motherboard.
Bigger Fans Provide Better Cooling #
Many mistakenly believe that larger fans equate to superior cooling, but that’s not always the case.
Besides fan size, airflow is also influenced by fan speed. Heat dissipation hinges on the cooler’s ‘air pressure,’ where blade size doesn’t matter, but high air pressure significantly aids cooling.
Increased airflow and reduced air pressure could trap heat on the cooler, necessitating higher fan speeds to achieve desired cooling, leading to louder noise. With modern CPUs generating minimal heat and considering economic factors, excessively large coolers aren’t essential.
Higher Power PSU Is Better #
Power supplies (Laptop Battery Knowledge) have maximum and rated power. If a PSU only indicates ‘maximum power’ or ‘peak power’ without ‘rated power,’ it’s likely a low-power unit unsuitable for mid-to-high-end graphics cards. Lesser-known brands may exaggerate rated power, e.g., marking 270W as 300W, which is conservative. However, watch out for brands falsely labeling 300W as 400W.
Larger PSUs can lead to more wastage. Match your platform’s power consumption with an appropriate PSU. For instance, with an i5-7500 + GTX1060 setup, a rated 400W-500W PSU suffices. Going beyond 600W might be unnecessary and less cost-effective. Furthermore, a reputable brand’s rated 400W PSU is better than an obscure brand’s 500W one at a slightly higher price.
Words in the end #
That wraps up the discussion on common misconceptions beginners may encounter when building a computer. DIY PC building seems straightforward, yet there are many nuances to consider. When selecting components, gather information and seek advice from experienced individuals to make choices tailored to your needs. Avoid falling for sales tactics and make an informed decision.
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