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dffsdfsdfds

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22 Posts

47

August 14th, 2025 03:39

Area-51 AAT2250, AlienFX lighting doesn't initialize properly on POST. "Unknown USB Device"

I have all updated software and BIOS 1.8.0 and FW/DR from SupportAssist. On my system, the AlienFX lighting for the tower is intermittent. Sometimes on POST something happens where Windows then doesnt see it and it shows as an Unknown USB Device. The AWCC AlienFX software then can't change the lighting of the tower. To fix it, I have to either run a repair of AlienFX software, or try a cold or warm reboot and hope it works. There must be a USB timing issue somewhere causing it. 

dffsdfsdfds

1 Rookie

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22 Posts

August 14th, 2025 03:42

I want to add that I troubleshooted this system and drained flea power, reseated the AlienFX cables, etc. It doesn't appear to be a hardware issue, since reinstalling AlienFX software fixes it temporarily until the next reboot. I expected better from a $6k+ system that I bought and expect the lighting to all work properly with no issues.

(edited)

William Support

1 Rookie

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4 Posts

August 14th, 2025 08:47

You can follow the steps below to check:
【1. Update the USB driver:---------
1). Click the search icon in the taskbar, enter Device Manager, and click Apps in the results.
2). Select the Universal Serial Bus Controllers section to expand it, right-click the first controller, and select Update Driver.
3). Now select the first option, Search for drivers automatically
4). If the system finds a new driver, it will install the new driver. If your computer already have the latest drivers, you can also click and search Windows Update for updated drivers.
5) Then the computer will enter the Windows Update menu. Click Advanced Options.
6) Now select optional updates. If you find any driver related updates, select and install them.
2. Change the USB power settings:----------------
1) Click the search icon on the taskbar, enter Control Panel, and select Applications from the results.
2) Select Power Options.
3) Click on Change plan settings for the power plan.
4) Now select Change advanced power settings.
5) Next, click on USB Settings, expand USB Selective Suspend setting and change it to Disabled.
3.卸载USB驱动：------------
1） 单击任务栏上的搜索图标，输入设备管理器，然后单击结果中的应用程序。
2） 展开通用串行总线控制器部分，查看是否有任何驱动程序有黄色问号符号，右键单击它并选择卸载设备。
3） 现在，重新启动计算机，系统将自动安装驱动程序。】
我在使用 Mokin 的集线器之前遇到了这个问题，测试后，它工作了。 您还可以尝试看看它是否可以使您的设备正常工作。

dffsdfsdfds

1 Rookie

 • 

22 Posts

August 14th, 2025 15:05

I have all updated software and BIOS 1.8.0 and FW/DR from SupportAssist. On my system, the AlienFX lighting for the tower is intermittent. Sometimes on POST something happens where Windows then doesnt see it and it shows as an Unknown USB Device. The AWCC AlienFX software then can't change the lighting of the tower. To fix it, I have to either run a repair of AlienFX software, or try a cold or warm reboot and hope it works. There must be a USB timing issue somewhere causing it. 

This has all been done. All those steps in the past. In fact I had to unhide the selective suspend option due to the OEM OS had it hidden. None of those steps make any difference. On warm reboots most of the time the lights are recognized. It is mostly on cold starts/boots. There is a timing issue or something with this latest BIOS with USB devices especially the lighting. It cant be fixed by windows OS changes as the issue is before windows loads. Alienware engineers need to look at reproducing issue and fix it in a new BIOS/firmware for the AlienFX board.

dffsdfsdfds

1 Rookie

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22 Posts

August 16th, 2025 03:24

Has anyone else experienced this issue? It still happens mostly on cold boots. Even with no USB devices plugged into back except for my Alienware Pro keyboard and Pro mouse. No USB devices plugged in at top of chassis.

Tesla1856

8 Wizard

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17.1K Posts

August 25th, 2025 00:48

Trying disabling VBS (Memory Integrity in Core-Isolation).

VillagesHoosier

1 Rookie

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7 Posts

August 26th, 2025 12:45

@dffsdfsdfds​ I can't get my RGB to be controlled at all using the latest version of AWCC.  However I see no USB errors as you indicate.  Something between the software and the hardware is not communicating properly.  Sad for a $6K machine.

William Support

1 Rookie

 • 

4 Posts

September 16th, 2025 08:49

you can follow the steps below to check:
【1. Update the USB driver:---------
1). Click the search icon in the taskbar, enter Device Manager, and click Apps in the results.
2). Select the Universal Serial Bus Controllers section to expand it, right-click the first controller, and select Update Driver.
3). Now select the first option, Search for drivers automatically
4). If the system finds a new driver, it will install the new driver. If your computer already have the latest drivers, you can also click and search Windows Update for updated drivers.
5) Then the computer will enter the Windows Update menu. Click Advanced Options.
6) Now select optional updates. If you find any driver related updates, select and install them.
2. Change the USB power settings:----------------
1) Click the search icon on the taskbar, enter Control Panel, and select Applications from the results.
2) Select Power Options.
3) Click on Change plan settings for the power plan.
4) Now select Change advanced power settings.
5) Next, click on USB Settings, expand USB Selective Suspend setting and change it to Disabled.
3. Uninstall the USB driver:------------
1) Click the search icon on the taskbar, enter Device Manager, and click Apps in the results.
2) Expand the Universal Serial Bus controllers section and see if any driver has a yellow question mark symbol, right click on it and select Uninstall Device.
3) Now, restart your computer, the system will automatically install the driver.】
I encountered this issue before using MOKiN's hub, and after testing, it worked. You can also try to see if it can make your device work properly.

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