03-18-2009 06:53 AM
06-16-2009 10:53 PM - edited 06-16-2009 10:56 PM
Has this been resolved by either of you yet? I have the exact same problem; unknown device on a PCI Bus
Hardware Ids are
Physical Device Object name is
I restored to Vista and took screenshots of the device manager to match it up to windows 7's device manager to see what was missing and the only thing was Microsofts ISCSI Initiator but I can't install v. 2.08 or earlier versions of that from Microsofts site Windows on 7; The site states that it comes installed with Vista... so it must with 7 aswell? Either way I tried every version with different compatibility settings and it said that an update.inf file couldn't be found.
Let me know if you need any more details.
Any help would be appreciated.
06-17-2009 04:38 PM
Falcon, Moosefist, Splobk:
Have a look at this post, it provides a solution that solves 99% of the 'unknown item' problems in the Windows 7 Device Manager.
06-17-2009 11:24 PM - edited 06-17-2009 11:26 PM
I looked through it and tried it out to no avail. Any other suggestions?
I have figured out that it is probably the Compal Embedded System Control but windows won't instal the drive on 7 I can't find the driver online to try run it in compatibility mode though, the dell ones available don't seem to be compatible. Any idea where to get that driver?
Thank you for trying.
08-03-2009 01:50 AM - edited 08-03-2009 02:22 PM
I'm also having this problem. I cannot find any ACPI drivers to remove this unknown device problem in windows 7. The driver hardware id is cpl0002. Seems like a lot of people with y430 has this problem. Also the windows 7 beta driver list seems to only have drivers for thinkpads and not ideapads.
Is it possible that this only happens on the 64-bit os of Windows 7? I've done some searching on google and several people have this problem with XP64 and Vista 64. Do all of you have windows 7 64 bit installed/
05-24-2010 11:15 AM
05-24-2010 11:14 AM
Finally Divyanshu solved the problem . Waoo. I feel so happy, so great. Lenovo Y430 I want to tell to all y430 lenovo users.
Windows 7 unknown device compal embedded system control 0.0.0.2 version or 188.8.131.52 . Thermal mode
ok. this driver is sitting on lenovo china , we were not able to figure it out, because of the language problem. My chinese friend helped me figure it out. .. WAOO . 3 cheers....
Click on the orange tab on the left side. Install the software. wait till it completes "Yes you want to restart the computer now ""
If you need any other driver for y430, let me know ... Have a great day .. if you like my message reply to post... Thanks.