Unknown Device On Microsoft ACPI / Compliant Embedded Controller
Jun 23, 2002
I installed a fresh copy of WIN2000 on my IBM Thinkpad A21m but I am having a problem setting up a device in Device Mangager. I have no idea what is going on.
When i reboot the laptop it prompts me that it has found a new piece of hardware and it wants me to install the driver for it. The problem is that I have no idea what device it is since all the devices that should be working are working - so i don't know what to do.
The clues that I have noticed that might help:
- the laptop takes a LOOOONG time to boot up (3 or 4 mins), and is sort of sluggish in operation (compared to how it ran when i bought it)
- my internet connection is super slow ( I have a DSL router that serves 3 computers incl. mine, the other two have XP and everythign runs smooth)
- the unknown device says it is located on the the "Microsoft ACPI-Compliant Embedded Controller"
Would any one know what Device this "Unknown Device" is??? I just need to know so i can install the driver so my system can run properly.
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Nov 7, 2006
I just opened this computer I got from tigerdirect.com and I was loading windows 2000 pro onto it...It loads half way and I get this message:
ACPI Bios not fully compliant with the ACPI specification.
So I did what I read and When Setup starts again, press F7 (not F6) when you see the "Press F6 if you need to install a third-party SCSI or RAID driver" screen.
Windows automatically disables the installation of the ACPI HAL and installs the Standard PC HAL.
So win2k is installed but I cant seem to get onto the internet and update any of the drivers.
THe computer is a IBM netvista 8307 model. They had some deal on it awhile back for less than $150..so I couldnt pass it up.
Im kinda lost right now..not sure what the problem is.
I did add a new video card before I installed the OS. could that have been the problem?
If so..how would I go about fixing this.
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Jul 15, 2005
I have installed a targus 7 port powered USB HUB on my computer. Device manager reports unknown device. I have deleted and it restalled the drived after the system rebooted. Device manager still saying unknown device. Their is not driver needed according to the manufacture. When the PC is booting it does see the IPOD mini and the Flash drive. But once the PC is fully out and login and I look a the device manager is still reporting unlnown device error (code 10).
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Dec 24, 2007
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Aug 5, 2005
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