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Disabled USB Enhanced on Dell 3100 with no PS2 - now unable to re-enable. Is there a way of enabling?

Posted on 2008-10-14
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Last Modified: 2013-12-09
Hi,

I've got a machine where the USB enhanced controller has been disabled, meaning nothing works. It's a Dell Dimension 3100 so there are no PS2 ports. Therefore, I can't get into it to do anything as keyboard/mouse both USB...

I need to somehow re-enable this device. I've tried LKGC, Safe Mode etc without any luck. I've tried repair install of Windows, but it doesn't allow use of kb/mouse in this either... The keyboard works fine during POST - I can get into BIOS but as soon as it starts loading Windows, it fails. During Windows setup it is fine until it restarts after copying files and then at the GUI it loses it.

I have access to the hard drive by plugging it into another PC only. Is there any way I can enable this again? Really desperate as I don't want to format the PC as it's got a load of little software programs on that are a nightmare to sort.

Thanks,
Adam
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Question by:chrisbarr35
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Author Comment

by:chrisbarr35
ID: 22714079
I might have got this working now... Or getting there anyway. The onboard USB are still down, but now a PCI-USB is allowing me to get through Windows Setup - at the 3rd time of asking...

A combination of;

PCI - USB card (I had tried this already, without any luck... It would appear a different XP CD with the required drivers on possibly has sorted it this time)
Copying a file from C:\Windows\LstGood.TMP (or something along those lines) back into C:\windows\system32\drivers

Going through Windows Setup now...
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Expert Comment

by:b0lsc0tt
ID: 22716094
chrisbarr35,

You did make sure the onboard USB ports weren't just disabled in BIOS, right?  Most current BIOS systems have a few options to control that part of the board.  What you describe could be caused if it was disabled in BIOS.  Right now I can't tell you the specific section or setting but I can try to get that info if you don't find it.  It is usually not in the first section that appears in BIOS but a peripheral or advanced section.

Let me know if you have any questions or need more information.

b0lsc0tt
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Expert Comment

by:nobus
ID: 22718976
can you use a PS/2 keyboard and mouse? if so, try that
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Accepted Solution

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chrisbarr35 earned 0 total points
ID: 22719010
b0lsc0tt - yes. Checked that first.

nobus - no PS2 ports!

Anyway, it's working now as a I posted a bit later on yesterday... Repaired Windows and now re-enabled the disabled USB enhanced controller - on-board USB now works :)

Bit of a pain - if there was PS2 ports it'd have took 2 minutes to sort out.
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