电源单元^{(Power Supply Unit)}是所有服务器的重要组成部分，总体上负责 PC 和IT基础设施^{(IT infrastructure)}的运行。如今，几乎每台笔记本电脑在购买时都配备了内置PSU 。对于台式机，如果同样需要改变，你应该知道如何为PC选择电源^{(power supply)}。本文将讨论什么是电源单元^{(power supply unit)}，它的用途，以及如何在需要时选择一个。继续阅读！

电脑电源如何选择^{(How to Choose Power Supply for PC )}

什么是电源单元？^{(What is Power Supply Unit?)}

• 尽管名称为Power Supply Unit，但PSU并不为设备提供自己的电源。相反，这些单元将^(convert)一种形式的电流（即交流电或 AC^{(Current or AC)} ）转换为另一种形式，即^{(form i.e)}。直流电或直流电^{(Current or DC)}。
• 此外，它们还有助于根据内部组件的功率要求调节^{( regulate)}直流输出电压。^{(DC output)}因此^(Hence)，大多数电源单元^{(Power Supply Units)}可以在输入电源^{(input power supply)}可能不同的不同位置运行。例如，伦敦的电压为 240V 50Hz，^(London)美国^(USA)的电压为120V 60Hz，澳大利亚^(Australia)的电压为230V 50Hz 。
• PSU 可根据需要提供200 至 1800W 的功率^{(from 200 to 1800W)}。

单击此处阅读电源指南^{(Click here to read Power Supply Guide)}和根据 PC 要求提供的品牌。

开关模式电源^{(Switched Mode Power Supply)}( SMPS ) 是最常用的，因为它具有广泛的优势，因为您可以一次为多个电压输入供电。

为什么需要 PSU？^{(Why is PSU Necessary?)}

如果 PC 没有获得足够的电源^{(power supply)}或PSU出现故障，您可能会遇到以下问题：

• 设备可能会变得不稳定^{(become unstable)}。
• 您的计算机可能无法^{(might not boot)}从开始菜单启动。
• 当对多余能量的需求不能满足时，您的计算机可能会不恰当地关闭。^{(may shut down)}
• 因此，所有昂贵的组件都可能^{(components could be damaged)}由于系统不稳定而损坏。

电源单元^{(Power Supply Unit)}有一种替代方案，称为以太网供电 (PoE)^{(Power over Ethernet (PoE))}。在这里，电能可以通过没有被拴在电源插座中的网络电缆传输。如果你想让你的电脑更灵活^{(more flexible)}，你可以试试PoE。此外，PoE可以为连接网络的无线接入点提供更多可能性，从而获得更高的便利性^{(higher convenience)}和更少的布线空间^{(lesser wiring space)}。

另请阅读： ^{(Also Read: )}修复PC打开但没有显示

电脑电源如何选择？^{(How to Choose Power Supply for PC?)}

每当您选择电源装置^{(Power Supply Unit)}时，您必须牢记以下几点：

• 确保它与服务器主板和机箱的外形尺寸灵活^{(flexible with the form factor of the motherboard & case of the server)}。执行此操作是为了将电源单元^{(Power Supply Unit)}牢固地安装在服务器上。
• 第二个要考虑的是瓦数^(wattage)。如果额定功率^{(wattage rating)}很高，则PSU可以为设备提供高功率。例如，如果内部 PC 组件需要 600W，您将需要购买能够提供 1200W的电源单元。^{(Power Supply Unit)}这将满足单元中其他内部组件的电源要求。
• 当您进行更换或升级过程时，请始终考虑Corsair、EVGA、Antec和Seasonic等品牌。根据使用类型（无论是游戏、small/large business还是个人使用）及其与计算机的兼容性，维护品牌的优先列表。^{(Maintain a priority list of brands)}

这样可以更轻松地选择适合您 PC的电源。^{(Power Supply)}

电源单元的效率是多少？^{(What is the Efficiency of Power Supply Unit?)}

• 80 Plus电源的效率范围为80%。
• 如果您向80 Plus Platinum 和 Titanium^{(80 Plus Platinum and Titanium)}扩展，效率将提高多达 94%（当您有 50 % load时）。所有这些新的 80 Plus电源装置^{(Power Supply Units)}都需要高功率，适用于大型数据中心^{(suitable for huge data centers)}。
• 但是，对于电脑和台式机，您应该更喜欢购买80 Plus 及以下的银色电源^{(80 Plus silver Power Supply )}，效率为 88%。

注意： 90% 和 94 ^(Note:)% efficiency之间的差异会对大型数据中心的能源使用产生广泛影响。

另请阅读：^{(Also Read:)}如何检查笔记本电脑的^(Laptop)英特尔处理器^{(Intel Processor Generation)}代

多少个 PSU 足够一台 PC？^{(How Many PSUs are Sufficient for a PC?)}

一般来说，一台服务器需要两个电源^{(two power supplies for a server)}。其操作取决于计算机所需的冗余。

• 拥有一个完全冗余的电源系统^{(Power Supply system)}是一种聪明的方法，其中一个 PSU^{( one PSU)}始终处于关闭状态，并且仅在停机^{(used only in case of downtime)}时使用。
• 或者，一些用户以共享方式使用两种^{(use both)}电源，从而分割工作负载^{(split the workload)}。

为什么要测试电源单元？^{(Why Test Power Supply Unit?)}

在排除和故障排除^{(elimination & troubleshooting)}过程中，测试电源单元^{(Power Supply Unit)}是必不可少的。虽然这不是一项令人兴奋的任务，但建议用户测试他们的电源单元^{(Power Supply Units)}以分析各种 PC电源^{(Power Supply)}问题和解决方案。在此处阅读我们关于如何^(How)测试电源^{(Test Power Supply)}的文章，以获取有关相同内容的更多信息。

推荐的：^{(Recommended:)}

• Windows 10需要多少RAM^{(RAM Do)}
• ^{(Fix Critical Process Died Error)}修复Windows 11^{(Windows 11)}中的关键进程终止错误
• 修复^(Fix)带有光标问题^{(Cursor Issue)}的Windows 11黑屏^{(Black Screen)}
• 如何修复 PC 无法发布

我们希望您了解什么是电源单元^{(what is Power Supply Unit)}以及如何为 PC 选择电源^{(how to choose power supply for PC)}。让我们知道这篇文章如何帮助您。此外，如果您对本文有任何疑问/建议，请随时将它们放在下面的评论部分。

How to Choose Power Supply for PC

The Power Suрply Unit is an essential component of all servers and is responsible for the functioning of PCs and IT infrastructure, on thе whole. Today, almost every laptop comes with an in-buіlt PSU during purchase. For deѕktop, if the samе needs to be changеd, you should know how to choose a power supрly for PC. This article will discuss what is pоwer sυpply unit, its use, аnd how to choose one when needed. Continue reading!

How to Choose Power Supply for PC

What is Power Supply Unit?

• Despite the name Power Supply Unit, PSU does not supply its own power to the device. Instead, these units convert one form of electrical current i.e. Alternating Current or AC to another form i.e. Direct Current or DC.
• In addition, they help regulate the DC output voltage according to the power requirements of the internal components. Hence, most Power Supply Units can operate in different locations where input power supply might vary. For instance, the voltage is 240V 50Hz in London, 120V 60 Hz in the USA, and 230V 50 Hz in Australia.
• PSUs are available from 200 to 1800W, as need be.

Click here to read Power Supply Guide and brands available according to PC requirements.

Switched Mode Power Supply (SMPS) is the most used due to its broad scope of advantages, as you can feed multiple voltage inputs at a time.

Why is PSU Necessary?

If the PC does not obtain an adequate power supply or the PSU fails, you might face several problems like:

• The device may become unstable.
• Your computer might not boot from the start menu.
• When the demand for excess energy does not meet, your computer may shut down inappropriately.
• Hence, all expensive components could be damaged due to system instability.

There is an alternative for the Power Supply Unit called Power over Ethernet (PoE). Here, the electrical energy can be carried out through network cables that are not being tethered into the electrical outlet. If you want your computer to be more flexible, you may try PoE. In addition, PoE may render many possibilities for wireless access points connected with a network perusing higher convenience and lesser wiring space.

Also Read: Fix PC Turns On But No Display

How to Choose Power Supply for PC?

Whenever you choose a Power Supply Unit, you have to keep the following in mind:

• Make sure that it is flexible with the form factor of the motherboard & case of the server. This is carried out to fit the Power Supply Unit firmly with the server.
• The second thing to consider is the wattage. If the wattage rating is high, the PSU can deliver high power to the unit. For example, if the internal PC components require 600W, you will need to buy a Power Supply Unit capable of delivering 1200W. This willsatisfy the power requirements of other internal components in the unit.
• When you undergo the replacement or upgrading process, always consider brands like Corsair, EVGA, Antec, and Seasonic. Maintain a priority list of brands according to the type of usage, whether gaming, small/large business, or personal use, and its compatibility with the computer.

This would make it easier to choose a Power Supply suitable for your PC.

What is the Efficiency of Power Supply Unit?

• The efficiency range of 80 Plus power supply is 80%.
• If you scale towards 80 Plus Platinum and Titanium, the efficiency will increase up to 94% (when you have 50 % load). All these new 80 Plus Power Supply Units require high wattage and are suitable for huge data centers.
• However, for computers and desktops, you should prefer buying an 80 Plus silver Power Supply and below, having an efficiency of 88%.

Note: The difference between 90% and 94 % efficiency can make a wide impact in terms of energy utilized by large-scale data centers.

Also Read: How to Check Intel Processor Generation of Laptop

How Many PSUs are Sufficient for a PC?

In general, you will need two power supplies for a server. Its operation depends on the redundancy required by the computer.

• It is a clever way to have a fully redundant Power Supply system with one PSU switched off all the time, and used only in case of downtime.
• Or, some users use both power supplies employed in a shared manner that split the workload.

Why Test Power Supply Unit?

Testing Power Supply Unit is essential in the process of elimination & troubleshooting. Although this is not an exciting task, users are recommended to test their Power Supply Units to analyze various PC Power Supply problems and solutions. Read our article here on How to Test Power Supply for more information regarding the same.

Recommended:

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We hope that you learned what is Power Supply Unit and how to choose power supply for PC. Let us know how this article helped you. Also, if you have any queries/suggestions regarding this article, then feel free to drop them in the comments section below.

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