当我第一次构建我的 PC 时，我注意到我机箱中风扇的蓝色LED灯是脉冲光，而它们本应发出恒定的光束。我想不通是什么问题，而且似乎也没有影响性能，所以我就搁置了一会儿。
最近，闪烁变得更加强烈，我认为它终于值得研究了。结果证明非常有趣，我发现了问题的一些可能原因及其各自的解决方案。
#3 – 重新初始化驱动程序
当LED(LED)风扇灯闪烁时，最常见的问题是可以轻松修复的驱动程序问题。如果主板上的所有风扇都以类似的方式闪烁，则主板及其软件可能存在问题。
要重新初始化驱动程序（Windows 10），您只需转到设备管理器(Device Manager)，然后选择通用串行总线控制器(Universal Serial Bus Controllers)的下拉菜单。每个人的主机控制器都会有不同的名称，但我的称为AMD USB 3.0 eXtensible Host Controller – 1.0 (Microsoft)。您可能会看到的其他名称包括ASMedia USB 3.x或Intel USB 3.x。
您需要做的就是卸载此驱动程序（或您的设置的等效驱动程序）。卸载后，风扇的灯会关闭，这是正常的。右键(Right)单击通用串行总线控制器(Universal Serial Bus Controllers)，然后单击扫描硬件更改(Scan for hardware changes)，驱动程序将重新初始化，灯将重新亮起。
如果这不影响闪烁的灯光，则为每个风扇提供的电量可能存在问题，这需要我们进行下一个修复。
#2 –在BIOS中(BIOS)降低电压(Turning Voltages Down)并调整风扇速度(Adjusting Fan Speeds)
另一个非常常见的LED灯闪烁问题也出现在主板的风扇控制器中。它要么没有获得足够的电力，要么没有输出足够的电力。
一个简单的解决方法是启动机器的BIOS并调整计算机不同部分的电压，以便为风扇分配更多功率。这方面的一个例子是将超频重置为CPU(CPUs)的本机时钟速度，这反过来会消耗更少的电力。
另一种解决方案是调整风扇速度。与其以最大功率运行风扇，不如尝试以 75% 的速度运行（反之亦然）。尝试为所有闪烁的粉丝这样做。与此相结合，还已知为每个单独的风扇创建特定的风扇配置文件以解决该问题。
风扇速度的降低将减少每个风扇的负载，从而增加系统的能量。由于我的机器为我的超频CPU消耗了大量电力，因此这是稳定我的风扇灯的修复程序。
#1 – 不稳定的电力系统
此问题的另一个非常常见的原因是电源没有为所有风扇及其 LED 灯提供足够的电力。真正解决这个问题的唯一方法是升级你的电源。每个风扇都需要 12v 才能正常工作，因此如果您的电源较旧，这可能是您的问题。
此外，如果您使用任何类型的风扇分离器并且它与另一个风扇共享该主板连接，则风扇将无法获得所需的最低功率。
如果每个风扇都连接到各自的端口并且它们仍然没有获得足够的电力，（闪烁仍然存在）那么升级你的电源是唯一需要采取的步骤。这将使风扇正常供电，并显着延长计算机的使用寿命。
我希望这些修复对您有所帮助，如果其他解决方案对您有用，请告诉我您做了什么，以便我也可以检查一下。如果您有任何疑问，请随时在下面的评论中问我！
How to Fix Flickering LED Lights in Your PC Case
When I first built my PC, I nоticed the blue LED lights for the fans in my case were pulsing light, when they were sυpрosed to emanate a constant beаm of light. I couldn’t figure out whаt the problem was, and it didn’t seem to affect performance, so I just left it alonе for a while.
Recently, the flickering became more intense and I figured it would finally be worth looking into. The results turned out to be really interesting and I have found a few possible reasons for the problem and their respective solutions.
#3 – Reinitializing the Drivers
The most common issue when it comes to flickering LED fan lights is a driver issue that can easily be fixed. If all of the fans on the motherboard are flickering in a similar fashion, there might be a problem with the motherboard and its software.
To reinitialize the drivers (Windows 10), you simply need to go to Device Manager then select the dropdown menu for Universal Serial Bus Controllers. Everyone will have a different name for their host controller, but mine is called AMD USB 3.0 eXtensible Host Controller – 1.0 (Microsoft). Other names you might see include ASMedia USB 3.x or Intel USB 3.x.
All you need to do is uninstall this driver (or the equivalent driver for your setup). After uninstalling, the lights in your fan will turn off, which is normal. Right click Universal Serial Bus Controllers then click on Scan for hardware changes and the drivers will be reinitialized and the lights will come back on.
If this doesn’t affect the flickering lights there might be an issue with the provided amount of electricity going to each fan, which takes us to our next fix.
#2 – Turning Voltages Down in BIOS and Adjusting Fan Speeds
Another very common issue when it comes to flickering LED lights is also in the motherboard’s fan controller. It either isn’t getting enough power, or it isn’t outputting enough power.
A simple fix for this would be to boot up into the BIOS of your machine and adjust the voltages of different parts of your computer to allow more power to be allocated to the fans. An example of this would be to reset an overclock to the CPUs native clock speed, which would in turn use less power.
Another solution is adjusting the fan speeds. Instead of running your fans at maximum power try running them at 75% (and vice versa). Try doing this for all of the flickering fans. In conjunction with this, creating specific fan profiles for each individual fan has also been known to solve the problem.
The reduction in fan speed will decrease the load on each fan which will increase energy to the system. Since my machine is drawing a lot of power for my overclocked CPU, this was the fix that stabilized my fan lights.
#1 – Unstable Power System
Another very common reason for this problem is the power supply isn’t providing enough power to all of your fans and their LED lights. The only way to really solve this problem is by upgrading your power supply. Each fan requires 12v to work properly so if you have an older power supply this might be your issue.
Also, if you are using any sort of fan splitter and it’s sharing that motherboard connection with another fan, the fan won’t be getting the minimum amount of power that it requires.
If each fan is connected to their respective ports and they’re still not getting enough power, (Flickering persists) then upgrading your power supply is the only step to take. This will allow the fans to be powered properly and will significantly increase the lifespan of your computer.
I hope these fixes helped, and if another solution worked for you, let me know what you did so I can check it out too. If you have any questions, feel free to ask me in the comments below!
