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HP Recommended
Z9A15EA (15-ay033nt)
Microsoft Windows 7 (64-bit)

I downgraded windows 10 to win 7 x64 version,please dont say "you should turn windows 10"

I want to use win7 so ı want to help from hp community ,What your suggestion to fix my problem ? I think this problem may caused for missing driver following:

 

1-UNKOWN DEVİCE

hardware ID:ACPI/INT3400

                        INT3400

2-PCI\VEN_8086&DEV_9D21&SUBSYS_81EC103C&REV_21
    PCI\VEN_8086&DEV_9D21&SUBSYS_81EC103C
    PCI\VEN_8086&DEV_9D21&CC_058000
    PCI\VEN_8086&DEV_9D21&CC_0580

 

3-PCI\VEN_8086&DEV_9D31&SUBSYS_81EC103C&REV_21

    PCI\VEN_8086&DEV_9D31&SUBSYS_81EC103C

    PCI\VEN_8086&DEV_9D31&CC_118000

    PCI\VEN_8086&DEV_9D31&CC_1180

NOTE: Number 3 driver problem  showing as twice on device manager

Thanks in advance



    

 

 

1 ACCEPTED SOLUTION

Accepted Solutions
HP Recommended

You're very welcome.

 

Go to the device manager, click on the unknown device needing the driver.

 

Click on the driver tab.  Click on Update Driver.

 

Select the Browse my computer for driver software option, and browse to the driver folder that was created when you ran the file.

 

That folder will be located in C:\SWSetup\sp75506.

 

Make sure the Include Subfolders box is checked, and see if the driver installs that way.

 

It definitely is the driver you need for that device.

 

Here is a partial copy and paste of the driver setup information file which shows driver support for the unknown device hardware ID...

 

[Manufacturer]
%INTEL% = INTEL, NTamd64.6.1, NTamd64.6.3

[INTEL.NTamd64.6.1]
%INT3400.DeviceDesc% = EsifManager,ACPI\INT3400

 

Yes, you will not be able to connect via wifi unless you remove the wifi adapter and mask a couple of the contacts.

 

You didn't want anyone to tell you to reinstall W10, so I didn't, but your notebook was not engineered to run W7.

 

See this discussion for the contacts to mask so the wifi card will work on W7.

 

https://h30434.www3.hp.com/t5/Notebook-Wireless-and-Networking/wireless-button-radio-driver/m-p/6821...

 

Here is the link to the service manual...

 

http://h10032.www1.hp.com/ctg/Manual/c05087748

 

Unfortunately, these are the kind of things you have to do in the name of W7.

View solution in original post

5 REPLIES 5
HP Recommended

Hi:

 

For the second device and one of the third devices, you need this driver.

 

Download, unzip and run the setup application, and restart the PC.

 

https://downloadcenter.intel.com/download/28182/Chipset-INF-Utility?product=1145

 

For the first device and the remaining third device, you need this driver...

 

ftp://ftp.hp.com/pub/softpaq/sp75501-76000/sp75506.exe

 

 

HP Recommended

Hi,

Thanks for your help i fixed up driver problem ,excluding number 1 UNKNOWN DEVİCE (ACPI/INT3400) driver, at the end of setup sp75506 windows says "may not be loaded correctly," it is still showing on device manager and I have still Wifi problem ı can able to connect internet only via cable. Do you have any idea?

Thanks in advance.

HP Recommended

You're very welcome.

 

Go to the device manager, click on the unknown device needing the driver.

 

Click on the driver tab.  Click on Update Driver.

 

Select the Browse my computer for driver software option, and browse to the driver folder that was created when you ran the file.

 

That folder will be located in C:\SWSetup\sp75506.

 

Make sure the Include Subfolders box is checked, and see if the driver installs that way.

 

It definitely is the driver you need for that device.

 

Here is a partial copy and paste of the driver setup information file which shows driver support for the unknown device hardware ID...

 

[Manufacturer]
%INTEL% = INTEL, NTamd64.6.1, NTamd64.6.3

[INTEL.NTamd64.6.1]
%INT3400.DeviceDesc% = EsifManager,ACPI\INT3400

 

Yes, you will not be able to connect via wifi unless you remove the wifi adapter and mask a couple of the contacts.

 

You didn't want anyone to tell you to reinstall W10, so I didn't, but your notebook was not engineered to run W7.

 

See this discussion for the contacts to mask so the wifi card will work on W7.

 

https://h30434.www3.hp.com/t5/Notebook-Wireless-and-Networking/wireless-button-radio-driver/m-p/6821...

 

Here is the link to the service manual...

 

http://h10032.www1.hp.com/ctg/Manual/c05087748

 

Unfortunately, these are the kind of things you have to do in the name of W7.

HP Recommended

I appriciate that , thank you so much. Now i can able to connect internet via wifi,

First ı installed manually sp75506 and ı just press f12 button and some bluetooth and network adapter driver was installed

and i want to say.. ı love win7  so much, win10 great but win7 is coming more special to me

finally ı fixed y problem thank you so much for helping

HP Recommended

Anytime.

 

Glad to have been of assistance, and very happy to know all you needed to do was to press the F12 key to turn the wifi on.

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