pc电源改可调

The power supply or “PSU” is the electrical heart of your PC. And if yours has recently stopped beating, or you’re upgrading your computer with more powerful components, you need a new one.

电源或“ PSU”是PC的电气心脏。 而且，如果您最近停止跳动，或者要使用功能更强大的组件升级计算机，则需要一个新的组件。

Choosing a new power supply can be tricky, since you’ll need to determine the required power draw, or wattage, of the rest of your components. You’ll also have to select a model that fits in your PC, and one that has the correct cables (rails) to fit your components. Then you’ll need to install it, and since the power supply is directly connected to multiple components, it’s a rather involved procedure. Let’s break it down.

选择新的电源可能很棘手，因为您需要确定其余组件所需的功耗或瓦数。 您还必须选择一种适合您PC的型号，以及一种具有适合您组件的正确电缆(滑轨)的型号。 然后，您需要安装它，并且由于电源直接连接到多个组件，因此这是一个相当复杂的过程。 让我们分解一下。

挑选新的电源 (Picking a New Power Supply)

Choosing the right power supply is essential for making sure your PC runs well. Without an adequate supply of regulated electricity, your desktop might suffer from performance issues, or possibly not boot at all.

选择正确的电源对于确保PC正常运行至关重要。 如果没有足够的可调节电力供应，您的台式机可能会遇到性能问题，或者根本无法启动。

我需要多少电量？ (How Much Power Do I Need?)

The amount of power a power supply delivers is measured in watts. They generally provide from around two hundred for the smallest and most efficient machines to over a thousand (one kilowatt) for the biggest, beefiest gaming and media desktops. Determining how much power you need is a matter of adding up the power draw from all of your components.

电源提供的电量以瓦特为单位。 它们通常提供从大约200台最小和最高效的机器到超过1000千瓦(一千瓦)的最大，最强大的游戏和媒体台式机。 确定所需的功率只需将所有组件的功耗相加即可。

The biggest two power draws on a PC are typically CPU and graphics card. That’s assuming you use a graphics card, of course—not all PCs have a separate card, and sometimes even a discrete card is low-power enough to draw its electricity directly from the motherboard. But if your PC is built for gaming or even light media editing duties, you’ll need to account for it.

PC上最大的两个功耗通常是CPU和图形卡。 当然，这是假设您使用的是图形卡-并非所有PC都有单独的卡，有时甚至是分立的卡都具有低功率，足以直接从主板上取电。 但是，如果您的PC是为游戏甚至是轻量级媒体编辑任务而构建的，则需要考虑这一点。

Other components also draw power, including hard drives, optical drives, and cooling systems like fans or radiators. These are typically require much lower power, and can usually get away with rough estimates.

其他组件也消耗功率，包括硬盘驱动器，光盘驱动器以及风扇或散热器之类的冷却系统。 这些通常需要低得多的功率，并且通常可以通过粗略估计来避免。

If you want to estimate your power requirements, look at the specifications of each component in particular. For example, our test machine at How-To Geek uses an Intel Core i7-7700K processor. On Intel’s website, we see that the processor draws an average of 91 watts under high load. Here are the power requirements for the rest of our test build’s components:

如果您要估算电源需求，请特别查看每个组件的规格。 例如， 我们在How-To Geek的测试机使用了Intel Core i7-7700K处理器。 在英特尔网站上，我们看到该处理器在高负载下的平均功耗为91瓦。 以下是我们测试构建其余部分的电源要求：

• Processor: 91 watts

  处理器：91瓦

• Graphics card (Radeon RX 460): 114 watts at peak

  显卡(Radeon RX 460)：峰值114瓦

• Motherboard: 40-80 watts

  主板：40-80瓦

• RAM: under 5 watts per DIMM – estimate 20 watts for our build

  RAM：每个DIMM低于5瓦–估计我们的构建为20瓦

• SSD: under 10 watts

  SSD：10瓦以下

• 120mm fan for CPU cooler: under 10 watts

  120mm风扇，用于CPU散热器：10瓦以下

Based on these general figures, we can estimate that the How-To Geek desktop won’t use more than 350 watts under its full load. And since the graphics card specifications recommend at least a 400 watt power supply, that’s where we’ll start. A margin of error is a handy thing to have, not to mention the fact that having a little extra power gives you room to add more components in the future—like extra storage drives or cooling fans.

根据这些一般数据，我们可以估计How-To Geek台式机在满负荷情况下的耗电量不会超过350瓦。 而且由于显卡规格建议至少使用400瓦电源，因此我们将从这里开始。 错误的余地是一件方便的事，更不用说以下事实了：额外的电源为您提供了将来增加更多组件的空间，例如额外的存储驱动器或冷却风扇。

If you’re not entirely sure about your PC’s power supply needs, check out this handy online calculator. Just plug in your components and it gives you a recommended wattage. Add a little bit for a safety margin, and you have wattage you need your PSU to deliver.

如果您不确定PC的电源需求， 请查看此便捷的在线计算器 。 只需插入您的组件，它就会为您提供建议的功率。 稍微增加一点安全性，您就有瓦数需要PSU交付。

我应该选择哪种尺寸？ (What Form Factor Should I Choose?)

After you’ve determined how much power you need, you’ll need to find a power supply that physically fits in your computer. That’s what “form factor” means: there are a few standardized sizes for power supplies, and odds are that one of them will fit the case you’re already using.

确定需要多少电源后，您需要找到物理上适合您计算机的电源。 这就是“外形”的含义：电源有一些标准化的尺寸，很可能其中之一适合您已经使用的情况。

The most common size for power supplies is “ATX”—the same standard name for a consumer-grade “tower” computer. These fit into almost all full-sized desktop computers, and you’ll find them ranging in power from around 300 watts all the way up to 850 watts.

电源的最常见尺寸是“ ATX”，这与消费级“塔式”计算机的标准名称相同。 它们几乎适用于所有全尺寸台式计算机，您会发现它们的功率从300瓦一直到850瓦不等。

Some ATX-standard power supplies are longer than normal, stretching to eight or ten inches long, but keeping their width and height standardized. These are the monsters that can power high-end CPUs, multiple GPUs, arrays of storage drives, and a wind tunnel’s worth of cooling fans, stretching from 900 watts all the way up to 1200 watts and beyond. Sometimes these extra-large ATX power supplies will have trouble fitting into a standard case, and require oversized “gaming” or workstation cases. Unless you specifically bought or built your computer to have a ton of power, you probably don’t have to worry about it. If you do have a monster PC, look up the case’s specifications: it will let you know the maximum dimensions of the power supply bay.

某些ATX标准电源比普通电源更长，可以延长到八或十英寸，但要保持其宽度和高度标准化。 这些怪物可以为高端CPU，多个GPU，存储驱动器阵列以及风洞中的冷却风扇供电，功率从900瓦一直延伸到1200瓦，甚至更高。 有时，这些超大型ATX电源在安装到标准机箱中时会遇到麻烦，并需要超大的“游戏”或工作站机箱。 除非您专门购买或制造出具有强大功能的计算机，否则您不必担心。 如果你 有一个怪物PC，查找案件的规格：它会让你知道电源托架的最大尺寸。

On the opposite end of the spectrum, some cases are too small for even a normal-sized ATX power supply. These include “small form factor” cases and those that are meant to hold smaller standardized motherboards, like Micro-ATX and Mini-ITX. These power supplied generally top out at around 400 watts, though some more expensive and more powerful units are made.

在频谱的另一端，即使是普通尺寸的ATX电源，某些情况也太小。 其中包括“小型”机箱以及意在容纳较小的标准主板的机箱，例如Micro-ATX和Mini-ITX。 尽管制造了一些更昂贵，功能更强大的设备，但这些提供的功率通常最高约为400瓦。

(At this size things can get confusing, since some enthusiast Mini-ITX cases can also fit a full-sized ATX power supply for beefy gamer configurations.)

(在这种尺寸的情况下，可能会造成混乱，因为某些发烧友的Mini-ITX机箱也 可以 适合全尺寸的ATX电源，以适应强大的游戏玩家配置。)

If you go even smaller, things tend to get non-standardized, and you’ll want to look for a replacement for your specific model. If you’re upgrading because you don’t have enough power in your current power supply and your case won’t accept anything bigger, you’ll likely need to upgrade your case as well, and move all of your other components into it. At this point, a complete PC replacement might be more practical.

如果尺寸变小，事情往往会变得不规范，那么您将需要寻找特定型号的替代品。 如果您要升级是因为您当前的电源供应不足，并且您的机箱无法容纳更大的东西，那么您可能还需要升级机箱 ，并将所有其他组件移入机箱 。 此时，完全更换PC可能更实用。

我需要什么电缆？ (What Cables Do I Need?)

The cables that run from your power supply to the various components in your PC generally standardized, but there are three crucial types you want to check for compatibility with your specific machine:

从电源到PC各个组件的电缆通常都经过标准化处理，但是您需要检查三种与特定机器兼容的关键类型：

• Main motherboard cable: This cable runs directly from your power supply to your motherboard, and plugs into the board using 20 or 24 pin plug. Most high-end power supplies have 20 pin plug, plus an additional 4 pin plug so that you can plug it into either type of motherboard. It’s worth paying attention to how many pins your motherboard uses and making sure you buy a power supply that can handle it.

  主主板电缆：该电缆直接从电源连接到主板，并使用20或24针插头插入主板。 大多数高端电源都有20针插头，另外还有4针插头，因此您可以将其插入任一类型的主板。 值得注意主板使用了多少个引脚，并确保您购买了可以处理的电源。

• CPU motherboard cable: This cable also runs to the motherboard, but is used to power your CPU. These come in 4, 6, and 8 pin varieties. Some high-end motherboards offer combinations (like an 8-pin and additional 4-pin connection) to spread out the voltage, but these are rare.

  CPU主板电缆：该电缆也连接到主板，但用于为CPU供电。 这些有4、6和8针类型。 一些高端母板提供组合(例如8针和附加的4针连接)以分散电压，但这很少见。

• GPU power cables: These cables run from your power supply directly to a graphics card. If you don’t use a graphics card, or if the card you use doesn’t require separate power, then you don’t need to worry about these. Graphics cards that do require separate power use either a 6 or 8 pin plug. Some of the bigger cards even require two cables. Most power supplies powerful enough to run gaming rigs offer a pair of cables for your graphics card (even if you only need one of them), and offer a 6 pin plug with an additional 2 pin plug so they can accomodate whatever card you use. It’s something to watch out for, though.

  GPU电源线：这些电缆从电源直接延伸到图形卡。 如果您不使用图形卡，或者您使用的图形卡不需要单独的电源，则无需担心这些。 需要单独供电的图形卡使用6或8针插头。 一些较大的卡甚至需要两条电缆。 大多数足以运行游戏装备的强大电源都会为您的图形卡提供一对电缆(即使您只需要其中一根)，并提供6针插头和额外的2针插头，以便它们可以适应您使用的任何显卡。 不过，这是需要提防的事情。

You’ll also need cables for other components: hard drives, optical drives, case fans, and so on. Modern storage and optical drives use standardized SATA power connections, and every modern power supply includes them. Case fans typically use 3 or 4 pin plugs, and again, modern power supplies usually come with at least one of these.

您还需要用于其他组件的电缆：硬盘驱动器，光盘驱动器，机箱风扇等。 现代存储和光驱使用标准化的SATA电源连接，每个现代电源都包括它们。 机箱风扇通常使用3或4针插头，同样，现代电源通常至少带有其中之一。

Older drives or fans may use a 4-pin Molex connector, with larger pins and a trapezoidal plug. Many power supplies offer a rail or adapters for these, but if the model you’ve chosen doesn’t, Molex adapters are cheap and easy to find.

较旧的驱动器或风扇可能会使用4针Molex连接器，并带有较大的插针和梯形插头。 许多电源为此提供了滑轨或适配器，但是如果您选择的型号不提供，则Molex适配器便宜且容易找到。

效率呢？ (What About Efficiency?)

Modern power supplies include an efficiency rating, usually indicated by the “80 Plus” voluntary certification system. This indicates that the power supply consumes no more than 20% over its output wattage; if you buy a 400 watt power supply, at full load it won’t consume more than 500 watts from your home’s electrical system.

现代电源包括效率等级，通常由“ 80 Plus”自愿性认证系统表示 。 这表明电源消耗的功率不超过其输出功率的20％； 如果您购买400瓦电源，则在满负荷情况下，您家的电气系统消耗的功率不会超过500瓦。

Compliance with the 80 Plus system is indicated by a sticker on the power supply, and usually advertised as a feature on the box or online listing. There are different grades of the 80 Plus sticker: standard, bronze, silver, gold, platinum, and titanium. Each higher level indicates a higher point of efficiency, and generally a higher price. Almost all power supplies sold at retail reach the minimum 80 Plus requirement.

电源上有不干胶标签，表明其与80 Plus系统兼容，通常在包装盒或在线列表中作为功能部件进行广告宣传。 80 Plus贴纸有不同等级：标准，青铜，银，金，铂和钛。 每个较高的级别表示效率更高，通常价格也更高。 零售商店出售的几乎所有电源都达到80 Plus以上的最低要求。

Your power supply’s efficiency rating won’t affect its output—if you buy a 400 watt supply, it will deliver 400 watts to your computer, no matter how much it draws from the power outlet. But those wishing to save some money on their power bills in the long term may want to shop for a higher-rated supply.

电源的效率等级不会影响其输出-如果您购买400瓦电源，则无论从电源插座汲取多少电能，它都会为计算机提供400瓦功率。 但是，那些希望长期节省电费的人可能希望购买更高额定值的电源。

模块化电源很棒 (Modular Power Supplies Are Awesome)

Modular power supplies allow the power rails from the PSU to be unplugged both at the component side and on the power supply side.

使用模块化电源，可以从组件侧和电源侧拔下PSU的电源轨。

By comparison, a non-modular design has a big bundle of power cables permanently affixed to the steel box of the power supply itself.

相比之下，非模块化设计将一大束电源线永久固定在电源本身的钢盒上。

The advantage of a modular supply is that you don’t have to have cables in your case that you don’t need. This makes running the power cables easier, keeps things looking tidier, and helping preserve good air flow in the case.

模块化电源的优势在于，您无需使用不需要的电缆。 这使电源线的连接更容易，使外观看起来更整洁，并有助于保持外壳中良好的空气流通。

The only real downside of modular supplies is that tend to be a bit more expensive, and they’re usually only offered on higher-end power supplies.

模块化电源唯一真正的缺点是价格往往会更高一些，并且通常仅在高端电源上提供。

You’ll also find semi-modular designs, with permanent rails for common components like the motherboard and CPU but modular rails for the rest. They can be a handy compromise.

您还会发现半模块化设计，其中永久性滑轨用于主板和CPU等常见组件，而其余部分则采用模块化滑轨。 它们可能是一个方便的折衷方案。

安装新电源 (Installing Your New Power Supply)

So you’ve picked out your power supply and you’re ready to install it. You’ll need a standard Philips-head screwdriver and a clean, well-lit place to work. If your home or office is particularly susceptible to static electricity, you might also want an anti-static bracelet.

因此，您已经选好电源并准备好安装它。 您将需要标准的飞利浦螺丝起子和干净，光线充足的工作场所。 如果您的家庭或办公室特别容易受静电影响，则可能还需要防静电手镯 。

Oh, and before you go any further: DO NOT OPEN THE METAL CASING OF THE POWER SUPPLY ITSELF. There are high-power capacitors inside that can injure or kill you if they discharge. For the same reason, don’t stick any tools or wires inside the holes for the cooling fan or exhaust, either.

哦，在您进一步之前，请不要打开电源本身的金属外壳。 内部有大功率电容器，如果放电，可能会伤害或杀死您。 出于同样的原因，也不要在冷却风扇或排气Kong内插入任何工具或电线。

卸下旧电源 (Removing the Old Power Supply)

Power down your PC, remove all the power and data cables, and then move it to your work area. You’ll want to remove any access panels from the case (on some PCs, you have to remove the whole case as one piece). On a standard ATX case, these are on the right and left sides, held in place with screws on the back of the computer. Remove these screws (two or three on a side), then pull back the access panels and set them aside.

关闭计算机电源，拔下所有电源线和数据线，然后将其移至工作区。 您需要从机箱上卸下所有检修面板(在某些PC上，您必须将整个机箱作为一个整体卸下)。 在标准ATX机箱上，它们位于左右两侧，并用计算机背面的螺钉固定在适当的位置。 卸下这些螺钉(侧面有2或3个)，然后向后拉检修板并将它们放在一边。

If you use a small form factor or other non-standard case, consult the manual. Remove as much of the exterior panels as you can to give yourself maximum access to the interior: you’ll need to unplug power cables from multiple components.

如果使用小尺寸或其他非标准情况，请查阅手册。 尽可能卸下尽可能多的外部面板，以便最大程度地进入内部空间：您需要从多个组件上拔下电源线。

Now, identify all of the components plugged into your power supply. On a standard PC build, this will be:

现在，确定插入电源的所有组件。 在标准PC版本上，这将是：

• Motherboard: long 20 or 24 pin plug.

  主板：长20或24针插头。

• CPU (on the motherboard): 4 or 8 pin plug, near the top of the motherboard. You may need to remove the CPU cooler to see this if it’s an oversized cooler.

  CPU(在主板上)： 4或8针插头，靠近主板顶部。 如果散热器过大，则可能需要卸下CPU散热器才能看到。

• Storage drives: Hard drives and solid-state drives, usually plugged in with a standard SATA cable. Multiple drives may be connected to one cable.

  存储驱动器：通常使用标准SATA电缆插入的硬盘驱动器和固态驱动器。 多个驱动器可以连接到一根电缆。

• Optical drives: Also use a standard SATA cable. Older models may use a Molex adapter.

  光盘驱动器：也使用标准SATA电缆。 较旧的型号可能使用Molex适配器。

• Graphics cards: larger, more powerful discrete cards draw power directly from the power supply, even though they’re plugged into the motherboard. 6 pin and 8 pin rails are common, with some high-end cards needing multiple rails.

  显卡：更大，功能更强大的分立卡即使已插入主板，也可以直接从电源获取功率。 6针和8针滑轨很常见，有些高端卡需要多个滑轨。

• Case fans and radiators: When not plugged into the motherboard or case itself, these fans can draw power from accessory rails using small 4 pin connections or older Molex connections.

  机箱风扇和散热器：如果未插入主板或机箱本身，则这些风扇可以使用小的4针连接或较旧的Molex连接从附件导轨中汲取功率。

Check from both sides of your PC and multiple angles: excess lengths of power and data cables are often stored behind the metal motherboard mounting tray.

从PC的两侧和多个角度进行检查：多余的电源线和数据线通常存储在金属主板安装托盘的后面。

When you’ve identified which components are plugged into your power supply, unplug them one by one. Some may be held in place with plastic tabs, but you shouldn’t need to use anything except your fingers to unplug them. If you have to remove anything to get to these plugs, especially data cables, remember their original positions and restore them as you have access. Taking pictures as you go is a great idea.

确定哪些组件已插入电源后，将它们一个个地拔下。 有些可以用塑料卡舌固定在适当的位置，但是除了手指拔掉插头外，您不需要使用其他任何东西。 如果您需要卸下任何东西以接触这些插头，尤其是数据电缆，请记住其原始位置并在可以访问时恢复它们。 随手拍照是个好主意。

If your power supply is modular, you also can remove the power rails from the back of the power supply housing. Carefully pull them free of the PC case itself and set them aside. If your power supply isn’t modular, simply pull all the power rails to the most accessible open space and make sure they’re free of entanglements with anything else in the case.

如果您的电源是模块化的，则还可以从电源外壳背面卸下电源导轨。 小心地将它们从PC机壳本身中拉出，并放在一旁。 如果您的电源不是模块化的，则只需将所有电源导轨拉到最容易接近的开放空间，并确保它们不会与其他任何东西缠结在一起。

Now turn your attention to the back of the PC. The power supply is held in place with three to five screws that are accessible from the outside of the PC case. Remove them and set them aside. Some case designs differ; if you see more screws in non-standard locations on the power supply, remove them too.

现在将注意力转移到PC背面。 电源可以通过PC机壳外部的三到五颗螺钉固定在适当的位置。 删除它们并将它们放在一旁。 一些案例设计有所不同。 如果在电源的非标准位置上看到更多螺钉，请也将其卸下。

With all the cables unplugged and the retention screws removed, you can now pull the power supply free of the case.

在拔下所有电缆并卸下固定螺钉的情况下，现在可以将电源从机箱中拉出。

Depending on where the power supply is placed (top or bottom of the case) and what other components are nearby, pulling it out of the case might be easy or might be challenging. If it’s near the top of the case and it’s crowded by an oversized CPU cooler, for example, you might end up having to remove that cooler so you can get the power supply out.

根据电源的放置位置(外壳的顶部或底部)以及附近的其他组件的不同，将其从外壳中拉出可能很容易，也可能具有挑战性。 例如，如果它靠近机箱的顶部，并且被超大的CPU散热器拥挤，您可能最终不得不卸下该散热器，以便取出电源。

安装新电源 (Installing the New Power Supply)

Now, we’re going to reverse the process. Place the new power supply in position in your PC. If it’s modular, don’t plug anything into it. If it isn’t modular, simply trail the power cables outside of the PC for easy access.

现在，我们将撤消该过程。 将新电源放置在PC上的适当位置。 如果是模块化的，则不要插入任何东西。 如果不是模块化的，则只需将电源线拖到PC外部即可轻松访问。

You’ll want to position the exhaust fan on the top or bottom of the power supply so that it’s facing away from the motherboard and the other internal components. So if the power supply is mounted at the top of the case, point the exhaust fan up. If it’s bottom-mounted, point it down. If the exhaust fan blows out the back of the case, it doesn’t matter.

您需要将排气扇放置在电源的顶部或底部，以使其背对主板和其他内部组件。 因此，如果电源安装在外壳顶部，则将排气扇朝上。 如果是底部安装，请将其指向下方。 如果排气扇从机箱后部吹出，则没关系。

Secure the power supply to the rear of the PC case with the retention screws, screwing from the outside of the case into the metal housing of the power supply. Use the screws from the previous power supply if you’re replacing it, otherwise the screws should have come with either your PC case or the power supply itself.

用固定螺钉将电源固定到PC机箱的后部，从机箱外部拧入电源的金属外壳。 如果要更换以前的电源，请使用它的螺钉，否则这些螺钉应该随计算机机箱或电源本身一起提供。

When the power supply is fixed in place, it’s time to plug in all those cables. If your power supply is modular, plug the cables into their sockets on the back of the supply itself. Now plug the opposite end of the rails into their corresponding components.

将电源固定到位后，就该插入所有这些电缆了。 如果您的电源是模块化的，请将电缆插入电源本身背面的插座中。 现在，将导轨的另一端插入其相应的组件中。

These components are fairly standardized: motherboard, motherboard-CPU, storage drives and disc drives, GPU (if applicable), and case fans or radiators (if they’re not already plugged in). You should be able to plug everything in without any further tools. If something isn’t plugging in all the way, check the orientation of the plug; all of the multi-pin cables should only be able to fit one way.

这些组件相当标准化：主板，主板CPU，存储驱动器和磁盘驱动器，GPU(如果适用)以及机箱风扇或散热器(如果尚未插入)。 您应该能够插入所有内容，而无需任何其他工具。 如果没有完全插入，请检查插头的方向； 所有的多针电缆只能以一种方式安装。

As you’re plugging in components, be wary of where you run the power cables. The inside of your PC doesn’t have to look like a showroom, but you should make sure that power and data cables don’t trail near cooling fans: they can drag and tangle. Even if they’re only touching slightly, they’ll make an annoying noise once your PC is running and potentially strip the protective casing.

在插入组件时，请注意在哪里放置电源线。 PC的内部不必看起来像陈列室，但您应确保电源线和数据线不会在散热风扇附近走动：它们会拖动和缠结。 即使它们只是轻轻触摸，一旦您的PC运行，它们也会发出令人讨厌的声音，并可能剥去保护壳。

Also, keeping cables as tidy as you can not only looks better, it helps promote good airflow inside your case and makes components easier for you to get to in the future.

此外，保持电缆尽可能整洁，不仅可以使外观看起来更好，还可以促进机箱内部的良好气流，并使组件更容易将来使用。

Once you’re sure everything’s plugged in, you might want to move your PC back to its normal position with your mouse, keyboard, and monitor before closing up. Being careful not to touch any of the interior components while it’s running, plug everything in and power it up, just to make sure it’s booting correctly. If not, then go back and check your connections again to make sure you haven’t missed a power plug or accidentally removed a data cable. Oh, and check the switch on the back of the power supply to make sure it’s in the “ON” position.

一旦确定一切都已插入，您可能需要在关闭计算机之前用鼠标，键盘和显示器将PC移回其正常位置。 在运行时，请小心不要触摸任何内部组件，插入所有组件并为其加电，以确保其正确启动。 如果不是，请返回并再次检查连接，以确保您没有错过电源插头或意外拔下数据线。 哦，请检查电源背面的开关，确保其位于“ ON”位置。

If everything looks good, then unplug the external cables, close up the access panels, and screw them into place to get your PC ready for normal operation. Then place it back in its usual spot, and enjoy your new power supply.

如果一切正常，请拔下外部电缆，合上检修面板，然后将其拧紧，以使您的PC可以正常运行。 然后将其放回原位，并享用您的新电源。

Image credit: Amazon, Newegg

图片来源： Amazon ， Newegg

翻译自: https://www.howtogeek.com/348257/how-to-upgrade-and-install-a-new-power-supply-for-your-pc/

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