Win98 SE + USB Modem

Good Morning,
I have a pc running 98se. If i boot the pc up normally it is fine boots up and can work. If i plug my USB ADSL Modem (Sagem Fast 800) and boot up it will load 98 but after a few minutes of starting up (the desktop is displayed) the pc will Restart on its own.
I have done the normal troubleshooting for this prob - Reinstalled drivers, flashed bios, replacd memory, replaced PSU, cleaned heatsink and fan and repasted with thermal paste updated various 98 components.

I still get the problem. This was brought to me innitially with this problem and others so i did a fresh install fdisk what have you and still to no avail.

Has anyone got any hints to what it ay be????

Best Regards

IT
SynsealITAsked:
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cwkhangConnect With a Mentor Commented:
this one may help

USB Update for Windows 98 SE (Uhcd.sys)
http://softwarepatch.com/windows/usbvia.html
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nobusCommented:
You can try if it works with other USB devices correctly.
Did you install the motherboard drivers after you installed windows? If not, go to the manufacturers site and download / install them. BTW, what model motherboard is it?
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SynsealITAuthor Commented:
Yeah installed drivers after windows first thing i do with any PC. Using an Intellimouse Optical with or without modem attached no problem at all. it is just as soon as boot pc with modem attached it resatarts. The motherboard is the Giga-Byte GA-6WMM7

IT
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nobusCommented:
did you check the device manager for conflicts and yellow exclamation marks?
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SynsealITAuthor Commented:
yes and no there are no exclamation marks on it for the usb device nor for the usb hub (Windows Built in )
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nobusCommented:
ok; in the device manager, under the tab view, check the entry display hidden devices, delete all of them and reboot, check if it is still the same
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SynsealITAuthor Commented:
I will try that and see what happens although i cannot do right now. Is there anything else you can think of that may cause this as i have to do tonight.
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nobusCommented:
what were the other problems? not virus or spyware?
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SynsealITAuthor Commented:
Its just this one problem i have sophos installoed and updated aswell as zonelabs suite 5 so no viruses
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nobusCommented:
Not so sure about that; try running those :

Spybot :       http://www.download.com/3000-8022-10122137.html
adaware :  http://www.lavasoftusa.com/

online scans :

      http://housecall.trendmicro.com/                       online scan for trojans
      http://www.ravantivirus.com/scan/
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blue_zeeCommented:

It may be a USB power problem.

Usually these can only be solved using a self-powered USB hub.

But there are other options to check:

- Faulty plug
- Faulty modem
- Driver update needed

Maybe you could test the modem in another PC?

Zee
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snoceraCommented:
Is is a Dell Deminison XPS by chance?

they have issues with USB ports.  Dell has a fix on their website
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SynsealITAuthor Commented:
No i'm affraid. I am goiung to close of this post as i have returned the pc to the user. they are happy to plug the modem into the pc once 98 has booted. I think this is a prob with the board.

Cheers ANyway
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