Setting PCIe generation from Gen4 to Gen3 can be done in the motherboard BIOS.Įach motherboard model and manufacturer will have a different name and location inside the motherboard BIOS for the PCIe generation setting. Setting the PCIe lane speed from Generation 4 (Gen4) to Generation 3 (Gen3) may help in cases where USB devices such as Cam Link 4K are freezing or disconnecting at times. These issues may appear when using a PCIe 4.0 capable motherboard with a PCIe 4.0 capable device such as a graphics card (GPU) or NVMe SSD (Solid-state drive). The latest version of PCIe, PCIe 4.0, has been reported to cause USB bandwidth issues and USB device dropouts on AMD B550 and X570 chipset motherboards. Please check your motherboard manufacturer site for a new BIOS update.
BIOS updates containing the new AGESA version is rolling out now. Update: AMD has announced that a new AGESA update, AGESA 1.2.0.2 will fix USB issues on affected B550/X570 motherboards. The signal from the Cam Link 4K may disappear for a few seconds, then reappear.Īdvanced troubleshooting - Set PCIe to Gen3
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If you are not comfortable doing this or are unsure if this will help, please contact Elgato customer support.ġ) Download and install the Elgato 4K Capture Utility software from ģ) Press and hold down the CTRL key on the keyboard, and then click on " Open Preferences" at the top right of the 4K Capture Utility software window.Ĥ) In the preferences window select the device tab.ĥ) In the device tab, make sure Cam Link 4K is the selected device.Ħ) Click on the USB Transfer Mode drop-down menu and select " Isochronous".ħ) Now click on apply and OK. This is an advanced troubleshooting step that can introduce other issues. For example, 1080p60 to 720p60 or 4K30 to 1080p30.Īdvanced troubleshooting - Change USB transfer modeĬhanging the USB transfer mode of the Cam Link 4K can help solve issues. Try lowering the source, usually a camera, resolution, or frame rate.
Lowering the incoming source resolution or frame rate directly results in Elgato Cam Link 4K using less USB bandwidth. If both USB ports are occupied by high bandwidth devices such as USB capture devices, external hard drives, webcams, etc the available bandwidth may be used up.Įlgato Cam Link 4K sends uncompressed video to the computer. These controllers are used for pairs of USB ports. USB ports are controlled by what is called a USB controller. Please make sure the USB hub is USB 3.0 compatible.ĭisconnecting other devices or connecting them to different ports can help. There could be bandwidth issues if too many devices are connected to the same internal USB hub or controller. Try connecting Elgato Cam Link 4K to those USB ports as well. Other USB ports, such as USB 3.1 and USB 3.2 are backward compatible and support USB 3.0 devices. Many motherboards have USB 3.0 controllers from different manufacturers, therefore it's worth trying to connect Elgato Cam Link 4K to a different USB port, which is internally connected to a different USB controller.
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Instead, these ports use basic Microsoft drivers which cannot be re-installed. Some USB controllers, such as Intel, do not have separate drivers. Other controllers usually also work fine with Microsoft's drivers. This will ensure that the Elgato Game Capture device is able to connect, and has the best possible performance. Make sure to install the latest drivers provided by your motherboard or notebook manufacturer for the USB 3.x controller.
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