2018年4月11日 · I have recently had to wipe and re-install windows 10 due to administrator issues from doing windows updates. Since then I have a hardware issue, one driver won't update/install and I can't find a driver anywhere. It says unknown device - properties show it as a PCI Express Root Complex?? No d...

2019年10月2日 · The "root complex" is a logical construct that consists of the CPU, system memory, and PCIe root ports. So all CPU<->memory operations take place within the root complex. And that also means that components within the root complex have to direct accesses to addresses that correspond to the PCIe bus out over PCIe root ports, as well as ...

2018年1月28日 · PCI Express Root Complex (Express Card 34mm USB 3.0, 2 Port) Hi, I am running: DELL Latitude E6320.

2022年11月16日 · Hi, I purchased new Probook 240 G8 Laptop. After installing the Windows 11 i am see one driver is not installed. under the other devices it shows unknown devices. I look properties of unknown devices it says on PCI Express Root Complex. Can you please help me to …

2020年4月6日 · PCI Express Root Complex (Code 28) PCI Express Root Complex (Code 28) Solved. Options. Mark Topic as New ...

2019年1月28日 · After some updates I noticed there is an Unknown Device located on PCI express root complex. I am unable to update it, and solutions to similar issues found on several forums do not work. I would appreciate any help 🙂 Below are some further details. The drivers for this device are not installed. (Code 28)

2019年8月27日 · Hi, Phil: This is the only driver available... Type: Driver - System Management Version: 1.4.0.0(13 Oct 2010) ...

2020年7月20日 · I have recently updated and re-install windows 10 64bit from windows 10 32bit in order to increase the RAM Capacity above 4GB Since then I have an hardware issue, one driver won't update/install and I can't find a driver anywhere. It says unknown device - properties show it as a PCI Express Root...

2015年2月16日 · I'm facing same issue on my EliteBook 8540p - Windows 8.1 Enterprise "UnKnown Devices on PCI Express Root Complex", following are my hardware Ids, kindly suggest a driver . ACPI\VEN_HPQ&DEV_0004 ACPI\HPQ0004 *HPQ0004 …

2015年4月5日 · Hi, I think I am having a similar issue as the original poster.. I purchased a PCI Express Card on Ebay and the driver disc does not work, My Dell laptop recognises the driver in the Express Card Slot, but due to not having a driver to install, I cannot get it to work.