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IRQ conflict?

By darah.shawn ·
As I try and work through this moronic USB modem issue, I've come across some similar situations, most of which have ended up being IRQ conflicts between the USB Host Controllers and audio or video cards.

In particular, I'm looking at IRQ 18 on my machine:

18 NEC PCI to USB Open Host Controller
18 NVIDIA GeForce 7800GT
18 VIA USB Enhanced Host Controller

All IRQ's are being used up to 23 at the moment. Unfortunately, my BIOS only allows me access (PCI or Reserved) up to 15. Vista is not allowing me to rearrange IRQ assignments.

1) Is this IRQ possibly the source of my issues with a USB modem that constantly freezes?
2) How can I get the IRQ assignments changed through Vista?

I can post the other IRQ's as well, if necessary.

PC specs are as follows:

Asus A8N-E, non-SLI, BIOS Rev. 1013
AMD Athlon 64 X2 4800+
Onboard audio
BFGTech GeForce 7800GT
two separate generic USB2.0 cards
Vista Ultimate 32-bit (although issue is similar on 64-bit Vista and 64-bit Windows XP Pro)

Thanks in advance.

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All Answers

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Manufacturer also

by darah.shawn In reply to I'm convinced Alltel is i ...

varies depending on who you talk to.

I'm still unclear if this is just a joint effort gone wrong, or what.
Device info shows UTStarcom, ESN sticker on device itself shows made by Pantech. It's a mess.

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Are there any error messages

by Jacky Howe In reply to Manufacturer also

in Event Viewer. Check the problem history in the Problem Reports and Solutions control panel. Are there any memory dumps. Minidump Files can be found here. C:\WINDOWS\Minidump\Mini122707-02.dmp

Have you tried other USB ports especially the on-board rear ports.

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No minidumps and

by darah.shawn In reply to Are there any error messa ...

I've run the modem on all 8 ports. All of my other USB devices work fine.

These are the most recent Event Viewer logs related to the modem freezing up. This covers everything from time of connect to "disconnect":

Log Name: System
Source: PlugPlayManager
Date: 3/4/2009 7:12:10 AM
Event I 12
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: ******
Description:
The device 'PANTECH UM175AL WWAN Driver' (USB\VID_106c&PID_3715&MI_03\7&6494a93&0&8515) disappeared from the system without first being prepared for removal.

Log Name: System
Source: RemoteAccess
Date: 3/4/2009 7:10:41 AM
Event I 20268
Task Category: None
Level: Information
Keywords: Classic
User: N/A
Computer: ******
Description:
CoID={6A3305EF-E798-4800-B8FD-3B7F82EEECB5}: The connection to Alltel Wireless Internet made by user **********@alltel.net using device COM3 was disconnected.

Log Name: System
Source: Tcpip
Date: 3/4/2009 7:10:32 AM
Event I 4202
Task Category: None
Level: Information
Keywords: Classic
User: N/A
Computer: ******
Description:
The system detected that network adapter Alltel Wireless Internet was disconnected from the network and its network configuration has been released. If the network adapter was not disconnected, this may indicate that it has malfunctioned. Try updating the driver for the network adapter.

Log Name: System
Source: Microsoft-Windows-User-PnP
Date: 3/4/2009 7:09:06 AM
Event I 20003
Task Category: None
Level: Information
Keywords:
User: SYSTEM
Computer: ******
Description:
Driver Management has concluded the process to add Service tunnel for Device Instance ID ROOT\*6TO4MP\0000 with the following status: 0.

Log Name: System
Source: Microsoft-Windows-User-PnP
Date: 3/4/2009 7:09:04 AM
Event I 20003
Task Category: None
Level: Information
Keywords:
User: SYSTEM
Computer: ******
Description:
Driver Management has concluded the process to add Service tunnel for Device Instance ID ROOT\*ISATAP\0002 with the following status: 0.

Log Name: System
Source: Tcpip
Date: 3/4/2009 7:09:03 AM
Event I 4201
Task Category: None
Level: Information
Keywords: Classic
User: N/A
Computer: ******
Description:
The system detected that network adapter Alltel Wireless Internet was connected to the network, and has initiated normal operation.

The interesting thing is that once I notice the "freeze", I can check Device Manager and still find no conflicts, modem still shows up okay. I have to force the software to disconnect and then I'm able to reconnect again (even though it'll happen over and over).

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Anything in

by Jacky Howe In reply to Have you tried updating y ...

problem reports.

Reconnect it to the Notebook and press the Winkey+r and type in services.msc compare the startup features from each System under Sources for the errors. EG: Source: Tcpip

The system detected that network adapter Alltel Wireless Internet was disconnected from the network and its network configuration has been released. If the network adapter was not disconnected, this may indicate that it has malfunctioned. Try updating the driver for the network adapter.

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If I'm reading your post correctly

by darah.shawn In reply to Anything in

The only things I'm seeing different on the main PC were:

SSTP - currently on Manual
ICS - currently on Automatic
TPM Base Svcs - currently on Automatic
WLAN AutoConfig - currently on Manual

ICS I'm sure I can go ahead and disable. I'd wonder about WLAN AutoConfig as well(set to Automatic?)

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Set the sevices up the same

by Jacky Howe In reply to If I'm reading your post ...

as the Notebook.

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This may be of interest

by Jacky Howe In reply to Anything in

http://www2.alltelstepbystep.com/content/phones/5043/UT_Starcom_UM175_User_Guide.pdf

If you have an Internet connection, it is recommended that
you check to see if you are running the latest version of
QuickLink Mobile. Click the ?Check for Updates? button to
perform this check.
Click the ?Next? button to continue

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I copied the

by darah.shawn In reply to This may be of interest

version of Quicklink software I downloaded straight from Alltel onto the main PC, so thankfully that's one less thing to worry about.

I'll go modify those few services and see what we get. Will post back.

Thanks :)

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Why would

by darah.shawn In reply to This may be of interest

ICS be turning itself back on right around the time of disconnect?

If I'm disabling it in Services, I'm not sure what would be setting it back to Manual. This isn't happening on the laptop.

Is that possibly the issue, then?

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Could be

by Jacky Howe In reply to Why would

do you have a physical connection to the Notebook.

Edit to add.

See if you can disable it.

http://www.practicallynetworked.com/sharing/xp_ics/internetgateway.htm

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