08-04-2014 11:32 AM - edited 08-04-2014 11:33 AM
I just bought a B590, model 20208, with, i3-3110m, 500GB HDD, GeForce 720M.
I installed Win 7 64bits, but in Device Manager, before installing all the drivers appeared Other Devices an Unknown Device with thise details: code 28, Device type: Other devices; Location: on Microsoft ACPI-Compliant Embedded Controllert . After installing drivers, the problem persists
Another problem was with PCI express but resolved with Intel Management Engine Interface drivers.
Other problem resolved was with the GeForce 720 M videocard; wasn't recognized but resolved with the last driver from GeForce site.
So... the last problem remained it's The Unknown Devices.
Could anyone help with this one?
Solved! Go to Solution.
08-04-2014 03:19 PM
Can you check if this is the driver for it.
Check if the Hardware ID of this device is a ACPI\VPC2004
on that same windows that you posted click the Details tab and change the value to Hardware ids
Now check the detail that will show below, if that shows ACPI\VPC20004 then that is a Lenovo Energy Management Controller.