Support Control, Bulk, Stream, Interrupt, Isochronous transfer type.Support USB3.1 and USB2.0 Link Power Management.Compliant with USB Attached SCSI Protocol Revision 1.0.
It uses advance process with low voltage supply, following standard PCI Express/USB bus power management and advance chip power management to reduce total power consumption efficiently under idle/standby state.ĪSM3142 integrates ASMedia self-designed PCI Express/SuperSpeed USB/USB2.0 PHY, supporting the proprietary driver for Windows 7 and in box driver for Windows 8.0, Windows 8.1, Windows 10 and various Linux kernels. It also supports backward compatible with legacy USB function and devices, compliant with USB Attach SCSI Protocol revision 1.0, supporting the function of debugport on port A of USB.ĪSMedia ASM3142 also supports the new feature of USB3.1 Gen2, named Multiple INs to achieve fully utilization rate of 10Gbps data rate, taking advantage of the available bandwidth of USB3.1 Gen2 bus.ĪSM3142 supports two USB3.1 Gen-II ports and perform trusting high speed bandwidth with PCI Express Gen-III x2 supporting. Keep me posted for further assistance.ASMedia ASM3142 is the next generation Universal Serial Bus xHCI host controller, bridging PCI Express to USB3.1 Gen-II, compliant with USB3.1 Specification Revision 1.0 and Intel eXtensible Host Controller Interface specification revision 1.1.
If there are any available updates, they begin installing automatically. In the Windows search bar, search for and open check for updates. If the issue persists then please perform the Windows operating system updates: You may restart the laptop once the HP Support Assistant tool finishes installing the required updates. To review completed and postponed actions, scroll down to the Action log section.
To install the update now, click the Install now icon ( ) next to the update. To delete an update, click next to the update. Select Tomorrow, One week, or One month, depending on when you want to be reminded. Next to the message you want to postpone, click Remind me. To postpone or delete a current update, use the following steps. If HP Support Assistant finds updates, they display in the Updates available window. HP Support Assistant connects to the HP servers and performs the following actions: To check for recent updates, click Check for updates and messages. If HP Support Assistant detects updates, a list of updates displays in the Updates available window.
This tool will scan and install the required drivers for your laptop: I recommend you to download and run the HP Support Assistant tool.
To assist you with accurate information I would require more information regarding this: I'll be glad to assist you with this case. I understand that you have an HP Spectre x360 - 15t-bl100 series notebook and the USB 3.1 extensible host controller keeps disappearing in the device manager.Īfter reinstalling Windows it appeared for a while and then disappeared again. You for posting on HP Forums, MKazi is at your service.