CUSL2 - Can I disable that secondary USB cntroller?

Arch!

Member
Oct 24, 1999
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I have no need for it, and -from what I've read - it's supposed to be resposible for a lot of the problems with soundcards. Can I disable it? I can't find a jumper that does this, nor can I find a bios function.

Thx!

 

AndyHui

Administrator Emeritus<br>Elite Member<br>AT FAQ M
Oct 9, 1999
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You don't need to disable the second USB hub in order to avoid problems with soundcards. If you have an SBLive and you have problems, then you do the following to resolve it:

Enable LPT Interrupt Sharing in the SB Emulation Device in the device manager.

Disable the DOS SB Emulation in the device manager (optional).

Set IRQ 5 Reserved to Yes in PCI/PNP Resource Exclusion list in the BIOS.

Disable Legacy USB in the BIOS.
 

Jakki0

Member
Nov 29, 1999
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I hear all this talk about 2nd usb port responsible for soundcard problems on the CUSL2 mobo and would like to add my 2 cents.

I cannot confirm the afore statements made. What I can say however that that is not at all true in my case. I have all my usb ports enabled and I am using a SB Live card. I have never had a problem with my sound card in any board that I have used (and I have used many). From experience I noticed that SB Live defaults to IRQ 10 and that is the IRQ that I have given it in any board that I use. In the case of my current setup here is what I recommend: (CUSL2 Board)

PCI slot 6 = SB Live (In BIOS under PIC config assign slot IRQ 10, slot 6 is not a shared slot).
If DOS emulation is needed and installed go to device manager and change the DOS emulation to use IRQ 5 (that was the old IRQ for SB 16 in the days of DOS) IRQ 5 is shared with the AGP slot but it will not matter too much since most of us hardly use the DOS emulation. With this setup I am able to have all my USB ports on and no conflict. Here are the rest of my slot usage: The IRQs are assigned in the BIOS (no auto nothing for me, I want it my way)

PCI 1 = PCI Modem (IRQ 3)
PCI 2 = Promise Ultra 66 (IRQ 11)
PCI 3 = SMC Network Card (IRQ 4)
PCI 4 = Tekram Ultra SCSI (IRQ 7) Printer port not used because of print
server, otherwise I could share an IRQ like 9 which i usually use
on my other boards.
PCI 5 = Empty (slot shared with slot 1) now bracket is used for Digital
I/O card used with soundcard for miniDisc.
PCI 6 = Sbond Blaster live X-Gamer (IRQ 10)

I must confess ;) that in my case I may have another IRQ to spare, IRQ 6 (which I noticed was assigned to one of the usb ports) I do not have a floppy disk drive. I opted for an LS-120 instead and a 250 Zip drive, both of which uses my 2nd IDE channel as master/slave.

So as you can see, along with the table on page 28 of the manual you can have quite a bit of flexability on the board with out disablinig any thing that you might need. I just set up a CULS2 for my brother with the same settings except he has a floppy and all is fine for him too.

hope this helps :D
 

snoogans

Banned
Sep 14, 2000
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There is a jumper on the board you can diable the 2nd USB hub there...read the manual, it's in there somewhere
 

Shag

Senior member
Oct 9, 1999
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Andy-

Where might I find the SB Emulation Device and the DOS SB Emulation entries in the Device Manager? I have an X-Gamer and don't see either of these listed in my DM.