您的GPU（图形(Graphics) 处理单元(Processing Unit)）卡无缘无故停止工作，或者您刚刚安装了全新的GPU，当您打开计算机时 - 没有任何反应。
出于某种原因，您的计算机没有检测到您的显卡。这些提示可能是找出原因的答案。
1.检查显示器连接
第一个也是最简单的解决方法是检查您的显示器连接是否正常。这是做什么：
- 检查显示器电缆是否连接到显卡而不是主板上集成 GPU 的端口。这是一个常见的错误！
- 接下来，确保显示器设置为使用正确的输入。例如，当显示器设置为HDMI 1时，您可能会插入HDMI 2 。
- 在你的GPU(GPU)上尝试不同的输出。它可能有多个HDMI或其他输出，其中一个是主要的。
如果您不确定，您还应该仔细检查显示器是否处于良好的工作状态。检查电缆是否损坏也是谨慎的做法。
2. 把旧卡放回去
如果您在问题开始之前刚刚安装了新卡，请将旧卡放回原处以确保它仍然可以工作。如果旧卡也突然无法工作，则表明您的新GPU存在问题。如果旧卡确实可以工作，则意味着您可以专注于新GPU作为故障排除的目标。
3.在另一台电脑(Computer)上试试这个卡(Card)（并更新(Update)它的固件(Firmware)）
如果您有幸能够使用第二台合适的计算机，请在该计算机上试用您的新GPU。如果可以，则表明您的计算机主板和GPU之间不兼容。
我们将很快处理主板方面的问题，但是当您的GPU在代理计算机中工作时，请尝试更新其固件以解决已知的兼容性问题。
如果您没有代理计算机，您可能需要联系具有测试台的本地计算机技术人员来执行更新。在线检查是否发布了新的固件更新。每个新的固件版本也会有一个修复列表。
4.卡是否正确(Card Seated Properly)安装在正确的插槽(Correct Slot)中？
当您在计算机中四处寻找时，最好确保您的卡已正确安装或没有以某种方式撤消。换句话说，它是否正确安装在插槽中？它在主PCIe插槽中吗？所有电源连接器是否正确连接？
如果您需要更新有关如何安装GPU的知识，请查看如何安装新显卡(How to Install a New Graphics Card)以及如何选择和更换您的下一个显卡(How to Choose and Change Your Next Graphics Card)。
5. 卡上电了吗？
如今，大多数离散GPU卡都具有带风扇的主动冷却系统。因此，只要您的计算机启动，卡上的风扇就会开始旋转。许多现代卡片也有灯，这可能是没有电源的另一个线索。
如果风扇和指示灯都不工作，则可能表明该卡未通电。如果您已将所有内容都插入并且卡无法开机，则可能有故障。请参阅在代理计算机中测试卡的部分或联系制造商。
6. 你的电源够强吗？
每张卡都有特定的电源要求才能工作。如果您的计算机无法为其提供足够的电力，则可能根本无法检测到它。
卡的文档和网站中提到了电源要求，但这还不是全部。这些要求是最低估计，而不是精确的规格。
GPU的可用功率取决于计算机的其他组件需要多少功率。使用电源计算器(power supply calculator)更准确地了解您的电源必须有多强大。此外，请记住GPU(GPUs)具有特定的功率要求并且需要足够的电流强度。
7.运行DDU清除旧驱动程序
通过重新安装一张好卡或将您的计算机切换到其集成GPU （如果有的话）重新进入Windows 。在那里，下载DDU，即显示驱动程序卸载程序(Display Driver Uninstaller)。运行该程序，它将删除旧卡驱动程序的所有痕迹。
当新卡在物理上工作但在Windows中仅被检测为通用(Windows)GPU时，这也是一个很好的修复。从系统中清除旧驱动程序后，重新安装有问题的GPU，然后从制造商的网站安装其最新驱动程序的新副本。
8. 检查您的 BIOS 设置
有时GPU未初始化，因为计算机的BIOS设置不正确。每台计算机都有不同的键，您需要在启动时按下才能进入BIOS（或现代计算机中的UEFI），因为它因一台计算机而异。请参阅您计算机的文档以获取确切的步骤。它通常是Delete或 F2 键，但也可以是任何键。
在您的BIOS中，寻找一个设置，以将PCIe插槽中的卡作为您的主要GPU来启动计算机。可能还有其他类似的设置，因为没有两个BIOS菜单看起来相同。这个想法是确保计算机使用正确的GPU而不是集成的 GPU。
9. 更新您的 BIOS
上面(Above)，我们提到如果您的主板不兼容，您应该考虑更新卡的固件。你可以对你的主板说同样的话。
查看我应该更新我的 BIOS 吗？如何检查是否需要(Should I Update My BIOS? How To Check If One Is Needed)确保您的主板固件是最新的信息。
10. 检查卡(Card)的物理问题(Physical Problems)
我们可以提供的帮助解决您未检测到的卡问题的最后一个提示是对卡进行物理检查。散热器是否正确连接？是否缺少任何螺钉或零件？卡上的任何组件是否显示焦痕？有些电容器看起来膨胀了吗？
这是一个远射，但如果您确实看到任何可见的损坏，那么您可能不会对这张卡有任何进一步的运气。如果仍在保修期内，请将其更换、交给技术人员或退回。(Replace)
希望(Hopefully)您的卡没有受到物理损坏，并且上面的故障排除提示之一使它再次工作。
Graphics Card Not Detected? 10 Fixes to Try
Your GPU (Graphics Processing Unit) card has stopped working for no apparent reason, or you’ve just installed a brand new GPU, and when you turn your computer on — nothing happens.
For some reason, your computer is not detecting your graphics card. These tips may hold the answer to finding out why.
1. Check the Monitor Connection
The first and easiest fix is to check that your monitor connection is in order. Here’s what to do:
- Check that the monitor cable is connected to the graphics card and not to the integrated GPU’s port on the motherboard. This is a common mistake!
- Next, make sure that the monitor is set to use the correct input. For example, you might be plugged into HDMI 2 when the monitor is set to HDMI 1.
- Try different outputs on your GPU as well. It may have multiple HDMI or other outputs, with one being primary.
You should also double-check that the monitor is in good working order if you aren’t sure. Checking the cable for damage is also prudent.
2. Put the Old Card Back
If you’ve just installed a new card before the problems began, put the old card back to make sure it’s still working. If the old card also suddenly doesn’t work, it points to a problem other than your new GPU. If the old card does work, it means you can concentrate on the new GPU as your target for troubleshooting.
3. Try the Card in Another Computer (and Update Its Firmware)
If you’re lucky enough to have access to a second suitable computer, try your new GPU in that machine. If it works, then it suggests an incompatibility between your computer’s motherboard and the GPU.
We’ll deal with the motherboard side of the problem shortly, but while you have your GPU working in a surrogate computer, try updating its firmware to resolve known compatibility problems.
If you don’t have a surrogate computer, you may want to contact a local computer technician with a test bench to perform the update. Check online whether a new firmware update has been released. There will also be a list of fixes for each new firmware revision.
4. Is the Card Seated Properly in the Correct Slot?
While you’re rooting around inside your computer, it’s a good idea to make sure that your card has been installed properly or that it hasn’t come undone in some fashion. In other words, is it seated correctly in its slot? Is it in the primary PCIe slot? Are all the power connectors correctly attached?
If you need to refresh your knowledge of how to install a GPU, look at How to Install a New Graphics Card and How to Choose and Change Your Next Graphics Card.
5. Does the Card Power Up?
Most discrete GPU cards these days have active cooling systems with fans. So as soon as your computer powers up, the fans on the card should start spinning. Many modern cards also have lights, which can be another clue that there’s no power.
If neither fans nor light work, it may indicate that the card is not receiving power. If you’ve plugged in everything and the card doesn’t power on, it may be faulty. Refer to the section of testing the card in a surrogate computer or contact the manufacturer.
6. Is Your PSU Strong Enough?
Each card has specific power requirements to work. If your computer cannot supply it with enough power, it may not be detected at all.
The power requirements are mentioned in the card’s documentation and website, but that’s not the whole story. Those requirements are minimum estimates, not precise specifications.
The available power for the GPU depends on how much power the other components of your computer need. Use a power supply calculator to get a more accurate picture of how powerful your power supply must be. Also, keep in mind that GPUs have a specific wattage requirement and need sufficient amperage.
7. Run DDU to Clear Out Old Drivers
Get back into Windows by reinstalling a good card or switch your computer over to its integrated GPU if it has one. Once there, download DDU, the Display Driver Uninstaller. Run the program, and it will remove every trace of your old card’s drivers.
This is also a good fix for when the new card physically works but is only detected as a generic GPU in Windows. Once you have scrubbed the old driver from the system, reinstall the problematic GPU and then install a fresh copy of its latest driver from the manufacturer’s website.
8. Check Your BIOS Settings
Sometimes a GPU is not initialized because the computer’s BIOS isn’t set correctly. Each computer has a different key that you need to press at boot time to enter the BIOS (or UEFI in modern computers) as it varies from one computer to the next. Refer to your computer’s documentation to get the exact steps. It’s usually the Delete or F2 key, but it could be anything.
In your BIOS, look for a setting to boot the computer with the card in the PCIe slot as your primary GPU. There may be other similar settings as no two BIOS menus look the same. The idea is to ensure that the computer uses the right GPU and not the integrated one.
9. Update Your BIOS
Above, we mentioned that you should consider updating the card’s firmware if there’s an incompatibility with your motherboard. You can say the same for your motherboard.
Check out Should I Update My BIOS? How To Check If One Is Needed for the information you need to ensure your motherboard firmware is up to date.
10. Check the Card for Physical Problems
The final tip we can provide to help fix your undetected card problem is to inspect the card physically. Is the heatsink properly attached? Are any screws or parts missing? Do any components on the card show scorch marks? Do some capacitors look swollen?
This is a long shot, but if you do see any visible damage, you’re probably not going to have any further luck with the card. Replace, take it to a technician or return it if it’s still under warranty.
Hopefully, your card isn’t physically damaged, and one of the troubleshooting tips above got it working again.
