Sound Blaster Live! CT4830 on Sandy Bridge motherboard

Sound Blaster Live! CT4830 on Sandy Bridge motherboard - sound problem

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First post, by Gelip

Posted on 2025-08-27, 07:02

Gelip Offline

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Hi. I installed Win95 OSR2 on the Asus P8H61-M LE R2 motherboard. There is one PCI slot in which I use the Sound Blaster Live! sound card (CT4830).
I installed drivers from the Live! Install CD.iso that I downloaded from this forum:
https://www.vogonsdrivers.com/getfile.php?fileid=512
Sometimes I have a problem that at the start of the Win95 system, the sound stuck like a video:
https://youtu.be/30KuX0Zc7JE

A similar situation is when watching DivX or MP4 video in VLC 0.8.6f and also when playing MIDI files, e.g. on an external MIDI device. I note that this happens only sometimes.
I tried other drivers but there is the same problem.
When the problem appears, I have to reset the computer several times using RESET button on case and it often helps.

Reply 1 of 4, by Matth79

Posted on 2025-08-27, 14:05

Matth79 Offline

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So that is on interrupt 11, check in the resources view to see if anything else is on 11.
If the COM and LPT are enabled, disabled then in BIOS and that may reshuffle the resources

Reply 2 of 4, by Gelip

Posted on Yesterday, 07:56

Gelip Offline

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Matth79 wrote on 2025-08-27, 14:05:

So that is on interrupt 11, check in the resources view to see if anything else is on 11.
If the COM and LPT are enabled, disabled then in BIOS and that may reshuffle the resources

IRQ11 is used also by integrated graphics card iGPU, IRQ Holder and some PCI bridges:

1    IRQ 11                       Shared                VBE Miniport - Standard PCI Graphics Adapter (VGA)
2    IRQ 11                       Shared                Creative SB Live! Value
3    IRQ 11                       Shared                IRQ Holder for PCI Steering
4    IRQ 11                       Shared                Mostek standardu PCI do PCI-do-PCI
5    IRQ 11                       Shared                Mostek standardu PCI do PCI-do-PCI
6    IRQ 11                       Shared                Mostek standardu PCI do PCI-do-PCI
7    IRQ 11                       Shared                Mostek standardu PCI do PCI-do-PCI

I tried to disable USB, COM and LPT in bios but Win95 still detects these devices - probably because the bios settings do not affect in CSM (Legacy) mode and work only in UEFI mode.

If sound probelm appears while start Win95 then possible mute sound and OS still works.
If sound problem appears while playback MIDI then OS hangs.

P.S. The same sound card works OK in WinXP 32-bit or WinXP 64-bit on this motherboard.

Reply 3 of 4, by Gelip

Posted on Today, 07:42

Gelip Offline

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Joined: 2019-01-01, 20:06

I recorded a video when Win95 starts with a broken sound:
https://youtu.be/Ds9ozxtVE_g

Reply 4 of 4, by ott

Posted on Today, 08:11

ott Offline

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H61 chipset doesn't have native PCI ports, perhaps the issue is in ASMedia PCIe-PCI bridge.

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