Question C9Z590-CQ(W), X12SAE-5, X12SCA-5 or equivalent motherboard series may have yellow exclamation mark in device manager after Windows 10 or Windows 11 64bit OS is completely installed. What are the three UCM-UCSI ACPI devices used for and where is the path for users to download the drivers? Answer UCM-UCSI ACPI Device with ACPI VEN_ITE &DEV_8853 type is under USB connector managers in Windows device manager. To patch this yellow exclamation mark inside Windows, Ucmcx1.3.7 driver is required to manually update for C9Z590-CG(W), X12SAE-5, X12SCA-5F or equivalent motherboard series to get rid of this problem. Downloading driver path is here, 34833.zip Was this FAQ helpful? YES      NO Enter Comments Below: Note: Your comments/feedback should be limited to this FAQ only. For technical support, please send an email to support@supermicro.com.  Enter your email address below if you'd like technical support staff to reply:  Please type the Captcha (no space) P V F E FAQ Stats FAQ ID Related Category / Keyword Date Posted Code 34833 N/A 10/27/21     Print Answer