WinXP SP2 64-bit on Asus J1800I-C BayTrail

[reboot12]

BIOS UEFI 64-bit but CSM available.

Hi. I installed WinXP (Legacy) but in the Device Manager I can't see any (?) Unknown device or (?) Multimedia device for sound card (Realtek or Intel). On Win7 and Win10 there is no problem with that and both sound cards available:

Edited Sunday at 06:29 PM by reboot12

[Dietmar]

@reboot12

This can be a problem with a driver, that appears double.

Make a try to disable really all. And then install your wished sound card and look what happens.

With csmwrap I had the problem, that some parts of memory are occupied twice

Dietmar

[reboot12]

@Dietmar

What double ??? I don't use CSMWrap because the motherboard has native CSM

These are two completely different sound cards - one is a Realtek 10EC 0887 integrated with the motherboard and the other Intel integrated with the CPU 8086 2882

[Karla Sleutel]

17 hours ago, reboot12 said:

These are two completely different sound cards - one is a Realtek 10EC 0887 integrated with the motherboard and the other Intel integrated with the CPU 8086 2882

When one has a dedicated card, the onboard needs to be disabled in BIOS.

[reboot12]

9 minutes ago, Karla Sleutel said:

When one has a dedicated card, the onboard needs to be disabled in BIOS.

Can you read with understanding? I do not have a dedicated card, both are integrated - one of the Realtek motherboard and the other with the Intel processor and both work OK in Win7, Win10. The point is that in WinXP they are not visible in the device manager so I can't install the drivers. And no, in the bios it is impossible to disable the Intel card integrated with the processor, you can only disable the Realtek card integrated with the motherboard but I do not want to disable because I have drivers to it and I would like to use it in WinXP:

 

[Dietmar]

@reboot12

Make some tests with disable and enable the Microsoft UAA drivers in System Devices.

I remember, that I had the same problem and the admin @Dave-H here also with Baytrail Flex 10 and XP and sound

Dietmar

 

 

Edited yesterday at 06:04 AM by Dietmar

[reboot12]

@Dietmar

Yeeeeeeeeaaaaaaaaaa - it works

After disabling and enabling Microsoft UAA Bus Driver for High Definition Audio, WinXP finds 2 new sound devices - Realtek and Intel. I have drivers for Realtek so I can install them now and the sound works

Thanks a lot Dietmar, I would never think of disabling then enabling UAA can help detect audio devices

I need to add a script to the autostart which restarts the MS UAA driver and should be ok.

Edited yesterday at 11:01 AM by reboot12

[reboot12]

@Dietmar

Yea, I found solution:

• extract devcon.exe tool from XP ISO > SUPPORT\TOOLS\SUPPORT.CAB to %windir%
  
• press Win+R and run gpedit.msc
• in Device Manager check Device ID MS UAA device - mine has DEV_0F04
• go to Local Computer Policy > Computer Configuration > Windows Settings > Scripts (Startup/Shutdown) and open Startup
• click Show Files and using Windows notepad make script re_UAA.cmd (use yours MS UAA Device ID)

  @echo off
  devcon disable *DEV_0F04
  devcon enable *DEV_0F04

  
• click Add... > Browse... - select created script and click OK then close gpedit window
• restart WinXP
• after the restart, the system's starting sound is not heard and no speaker icon in tray but when the system starts fully, in device manager is OK and Realtek sound card works

P.S. devcon.exe version must be same architecture - best from same ISO as installed OS because 32-bit version cannot disable/enable device in the 64-bit OS !!!

Edited yesterday at 01:18 PM by reboot12

[Karla Sleutel]

On 7/6/2025 at 9:00 PM, reboot12 said:

Can you read with understanding? I do not have a dedicated card, both are integrated - one of the Realtek motherboard and the other with the Intel processor and both work

Yes, I can. Then leave only one, what stops you? Never heard of XP using two modern cards all at once in one setup troub;e free.

[j7n]

I'm getting old. How is there a sound card inside an Intel processor? Where does it output the audio? Only on HDMI?

[reboot12]

1 hour ago, j7n said:

I'm getting old. How is there a sound card inside an Intel processor? Where does it output the audio? Only on HDMI?

Normally the same as in the PCIe HD graphics card, e.g. AMD HD7450:

Audio output from Intel CPU is over HDMI, DP or DVI (DVI only if in bios is function Audio over DVI and you need DVI > DP or DVI > HDMI cable:

Edited 10 hours ago by reboot12