Hi....


I had a toshiba c55-a with a faulty HM70 chipset and celeron 1005m cpu...So PCH was for replacment and i replaced it with HM76 chipset because i wanted to upgrade to a better cpu,because HM70 doesn`t support i3,i5,i5 cpu`s.I have managed to upgrade cooling and put i7-2670qm quad core cpu.
Upon upgrading chipset i had to clean me region of the bios and now everything works ok but in device manager i have an usb hub which can not be identified.
Everu usb port works and everything else but this.(see pic)

Now i tried everything in software and problem persist so i thought that the chipset had issues but no.I replaced with another hm76 PCH ,cleaned me region,same issue.Then i replaced with original HM70 and cleaned me region and again same issue.

Also I have this issue on toshiba c850 which i did another day where i did conversion form hm70 to hm76 and 2 dell laptops where i replaced hm67 with same HM67 chipsets...Same unknown usb problem...Apart from that everything else works like a charm...
So i concluded i must be doing something wrong when cleaning me regions...I am using same method for cleaning me region for every pc and i never had any problems upon this 2 type of chipsets lately...
Any thoughts ?

Try to find or add vid/pid for this device in bios. Before install correct intel me driver after chipset driver. And check mosfets on +5 before usb

No vid and pid...it says unknown device...every usb works on a laptop,everything that uses usb is functional...but i don`t know what`s this error for...
intresting is that it happened on last 4 different laptops that i did replace pch...same problem usb hub but different port...