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Intel LPC Interface Controller - Showing as Unknown Device

    Question

  • Hi folks. I've installed Windows 7 on my Dell Studio Laptop. In the Device Manager, I have an unknown device showing, which reports as being Intel(R) ICH8M-E LPC Interface Controller - 2815

    Under System Devices, there is an identical device that has the correct driver installed. If I try to install the same driver for that device, the Unknown Device remains.

    I've also tried installing the following driver

    http://www.downloadatoz.com/driver/item_259290.html

    But the device remains as Unknown.

    Can anyone help?

    My laptop is;

    Dell Studio 1735 : Intel Core 2 Duo T5750
    Graphics: 256 MB ATI Mobility RADEON HD 3650
    Memory Dual Channel 3.0GB (1X2GB + 1X1GB) 667 MHz DDR2 SDRAM
    Hard Drive 250GB Serial ATA
    Tuesday, February 24, 2009 8:52 AM

Answers

  • I've already tried installing that Driver. Did a bit more digging and found out that it is actually the Infra Red receiver, and I've now installed the driver for it and the Unknown Device no longer shows.

    I installed the following driver for my machine.

    http://support.dell.com/support/downloads/download.aspx?c=us&l=en&s=gen&releaseid=R190901&SystemID=STUDIO1735&servicetag=&os=WLH&osl=en&deviceid=17446&devlib=0&typecnt=0&vercnt=1&catid=-1&impid=-1&formatcnt=1&libid=17&fileid=262192

    I think the clue is in the Hardware IDs

    ACPI\ITE8708, *ITE8708

    It's an ITE CIR receiver.
    Wednesday, February 25, 2009 9:01 AM

All replies

  • I have the same problem. Just switched to XP Pro from factory installed Vista on Intel Duo Core IBM Thinkpad x61. Everything else appears to be okay but I have the same "Unknown Device" in
    Device Manager:  Intel(R) ICH8M LPC Interface Controller - 2
    PNP Device ID:     ACPI\ATM1200\4&374CCB25&0

    Googled the problem and it seems to be common, but haven't found a solution yet.



    T7300(2GHz), 3GB RAM, 120GB 5400rpm HD, Intel X3100,
    Mobile Intel 965 Express Chipset Family
    Tuesday, February 24, 2009 12:46 PM
  • Ah ok, so it's not just a Windows 7 problem then?

    The Id's on mine are

    Hardware IDs: ACPI\ITE8708, *ITE8708

    EDIT: I just found this information within a PDF, not sure if it will be useful

    *This 'unknown device' is a device on Intel(R) ICH8M LPC Interface Controller - 2815 has been fixed by downloading
    and installing the ITE CIR InfraRed receiver.

    PDF Link --- http://wickmanstudios.com/index2.php?option=com_content&do_pdf=1&id=17
    Tuesday, February 24, 2009 3:26 PM
  • You should be able to resolve this by downloading the intel chipset drivers and running the .exe installer in compatibility mode and with Run as Administrator also checked.

    http://downloadcenter.intel.com/Product_Filter.aspx?ProductID=816


    Tuesday, February 24, 2009 6:45 PM
  • I've already tried installing that Driver. Did a bit more digging and found out that it is actually the Infra Red receiver, and I've now installed the driver for it and the Unknown Device no longer shows.

    I installed the following driver for my machine.

    http://support.dell.com/support/downloads/download.aspx?c=us&l=en&s=gen&releaseid=R190901&SystemID=STUDIO1735&servicetag=&os=WLH&osl=en&deviceid=17446&devlib=0&typecnt=0&vercnt=1&catid=-1&impid=-1&formatcnt=1&libid=17&fileid=262192

    I think the clue is in the Hardware IDs

    ACPI\ITE8708, *ITE8708

    It's an ITE CIR receiver.
    Wednesday, February 25, 2009 9:01 AM
  • My deep thanks to messyhead and others on this forum for the advice about the Infrared Device Driver for my Dell Studio.  I installed the driver and my mysterious "unknown device" problem disappeared.

    After three hours of hair-pulling, your comments saved my day.  Bravo!
    Friday, March 13, 2009 1:53 PM
  • The drivers for this device are included within the Windows 7 installation already, you just need to browse for them

    Right click on the device, and goto Properties.

    Goto the Driver tab, and click on Update Driver.

    Click on the "Browse my computer for driver software" option, then let me pick from a list of device drivers.

    Click on the show all devices option, and then select Intel from the Manufacturer side.

    In the right hand side (Model) scroll down until you find your Model, in my case it was Intel(R) 82801FBM LPC Interface Controller - 2641.(Note the (R) on Intel.

    Click on Next and hey presto, the correct Windows 7 driver will be installed without any additional downloads.

    Hope this helps someone.

    James





    • Proposed as answer by secor941 Tuesday, April 27, 2010 2:37 AM
    Tuesday, August 25, 2009 11:39 AM
  • I think the problem I was having before was due to me using the Beta, which didn't automatically recognise the hardware. So I had to try and find out what hardware it was, and then find the driver.

    When I installed the RC1, the drivers were installed automatically.
    Wednesday, August 26, 2009 10:20 AM
  • James,
    You nailed it! I had the same issue, following your manual install of the existing driver worked like a charm. Thanks for taking the time to post...

    Thursday, November 19, 2009 10:59 AM
  • Thanks so much!
    Sunday, December 06, 2009 2:28 PM
  • You are an effin GENIUS, I have been searching online for this driver for hours. I used to use a program called radarsync that would automatically search and download missing or outdated drivers but they recently started charging for their service. I found a similar program called device doctor but it does not download the drivers for you, it just takes you to a site to download the drivers. If anyone knows of any similar free software that will automatically download and install drivers please let me know
    Tuesday, April 27, 2010 2:37 AM
  • The drivers for this device are included within the Windows 7 installation already, you just need to browse for them

    Right click on the device, and goto Properties.

    Goto the Driver tab, and click on Update Driver.

    Click on the "Browse my computer for driver software" option, then let me pick from a list of device drivers.

    Click on the show all devices option, and then select Intel from the Manufacturer side.

    In the right hand side (Model) scroll down until you find your Model, in my case it was Intel(R) 82801FBM LPC Interface Controller - 2641.(Note the (R) on Intel.

    Click on Next and hey presto, the correct Windows 7 driver will be installed without any additional downloads.

    Hope this helps someone.

    James

    James- You certainly helped me ... almost a year after your post!!! I sure hope you read this because you helped me immensely.

    Many thanx

    -michael

    Wednesday, May 26, 2010 4:48 AM
  • ITECIR (infrared driver) driver must be install. it is a keyboard driver.
    Wednesday, October 27, 2010 12:36 PM
  • If you are like me and have the ibm thinkpad t43/p model and see the unknown device error mentioned above when you install windows 7 you'll need to do the following to clear it up and have it install the driver correctly. First you need the tpm driver..  (try here:http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-58656)

    then after you download the driver, install the driver. This will NOT IMMEDIATELY FIX THIS ISSUE!!! After it installs you will need to goto the device in device manager and bring up properties and MANUALLY UPDATE the driver. This will work NO OTHER WAY! Please don't tell me to do a bazillion other methods because none work. THIS WORKS AND I JUST TESTED TWICE ON MY THINKPAD T43 WITHOUT ANY ERRORS. You will Need to MANUALLY UPDATE, DONT LET WINDOWS DO IT BECAUSE IT WILL FAIL.

    Select the path to the directory that was created during the install. (probably something like c:\drivers\win\tpm

    You only need to point the driver update to the drivers path but if you want to drill all the way down that works too.

    Once you have the path go ahead and click okay and after a second or two you will have the driver updated and the error clears.

    The reason for the error is because IBM/LENOVO did NOT follow microsofts software update guidelines.  If they did you wouldnt see this error. Then again this is for a system that is somewhat old so i guess you could say they dont bother updating older systems.

    in any event i like the performance i see with windows 7 on the t43.  while it isn't blazing fast it works and runs good.

    Sunday, May 08, 2011 9:50 PM
  • Worked like a charm. Thank you, James!
    Saturday, July 02, 2011 12:02 AM
  • Please make sure the problem is

    ACPI\ATM1200\4&374CCB25$0

    I fixed it by download 79za05ww.exe from thinkpad.com.  It will fix the Unknown device problem.

    Good Luck!

    Wednesday, September 14, 2011 10:21 PM
  • For those of you searching for ACPI\ATM1200\4&374CCB25$0

    and its appropriate XP driver

    installed in a Lenovo R61 notebook:

     

    It is a Atmel TPM device from Atmel Corp which is running on

    Intel(R) ICH8M LPC Interface Controller - 2815 (in Device Manager)

     

    You can install 79za05ww.exe from http://support.lenovo.com which you can find in "Download Drivers", category "Software installation/configuration", "Atmel TPM (Trusted Platform Module) device"

     

    Have fun.

    Friday, September 23, 2011 4:09 PM
  • Monday, January 09, 2012 4:40 AM
  • I've already tried installing that Driver. Did a bit more digging and found out that it is actually the Infra Red receiver, and I've now installed the driver for it and the Unknown Device no longer shows.

    I installed the following driver for my machine.

    http://support.dell.com/support/downloads/download.aspx?c=us&l=en&s=gen&releaseid=R190901&SystemID=STUDIO1735&servicetag=&os=WLH&osl=en&deviceid=17446&devlib=0&typecnt=0&vercnt=1&catid=-1&impid=-1&formatcnt=1&libid=17&fileid=262192

    I think the clue is in the Hardware IDs

    ACPI\ITE8708, *ITE8708

    It's an ITE CIR receiver.
    I had the same problem on Windows 8 pro and it worked, the unknow does not show anymore, it was the receiver. Thanks.
    Wednesday, December 05, 2012 10:50 AM
  • This answer is the correct answer as it will apply to any device, not just Dell. My device is a Sony Vaio  VGN NR38E laptop, which I had upgraded from Vista to Windows 8, which then further upgraded with service pack Windows 8.1 Pro. It appears that during the upgrade, if your device contains hardware that either is or may be incompatible with the OS, the driver is not installed during upgrade. Whilst following James' instructions, I received the warning from Windows that the selected driver could not be verified as 'safe' and that I should not download it. So please be aware that whilst you might fix the problem of the unknown device, your device might become unstable in other ways due to the presence of this driver and you might have to uninstall it after all! I chose to install it because it was a genuine Intel driver but I might not have if it was a name not known to me.
    Thursday, January 16, 2014 3:01 PM