UnKnown Devices on PCI Express Root Complex

[osmankaan]

After formating my hp laptop with windows8 64bit , I installed all drivers present in the website for g6-1305et . However, in device manager, I got an error below Other Devices-Unknown Device as 'Location: on PCI Express Root Complex, "The drivers for this device are not installed. (Code 28)" . How can I obtain this driver ? 

[DavidPK]

Hi,

It's probably the Card Reader driver on the link below.

http://ftp.hp.com/pub/softpaq/sp59001-59500/sp59191.exe

If it's not, go back into Device Manager, right click on the problem device and select Properties.  Click the Details tab, choose Hardware Ids from the dropdown box and post back with the details shown under Value.

Regards,

DP-K

[osmankaan]

Those are in the list, respectively;

ACPI\VEN_HPQ&DEV_6001

ACPI\HPQ6001

*HPQ6001

[DavidPK · Accepted solution]

Hi,

Install the Wireless Button Driver on the following link.

http://ftp.hp.com/pub/softpaq/sp58501-59000/sp58720.exe

DP-K

[AmroAwad]

I'm facing the same issue on my hp  pavilion dv6 Notebook, the hardware values are :

 ACPI\HPQ0004\3&11583659&0

Please help me with the driver needed?

[sheriff55]

This is HP 3D driveguard device

Details are here http://support.hp.com/us-en/document/c02853305/?openCLC=true

This article solved my problem

[imageologist]

Hi,

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

Regards,

imageologist

[tommyboy69]

can you suggesr a drive for me please: ACPI\VEN_SMO&DEV_8800   ACPI\SMO8800 AND *SMO8800

[MSeraphim]

I am have the same problem..

ACPI\VEN_SMO&DEV_8800
ACPI\SMO8800
*SMO8800

is what I get

[Rotich]

I have a EliteBook 2540p with an unknown device

ACPI\VEN_HPQ&DEV_0004
ACPI\HPQ0004
*HPQ0004

kindly help

Regards