Thank you for your response Prabha.
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I appreciate your effort & patience that you have put to resolve this issue.
The driver files list updated days, we only focused on Dell drivers update, and developed a driver catching software running to catch the new driver and drivers on Dell official site, so you can find almost all Dell OptiPlex 7020 drivers for your Windows XP, Vista, 7, 8 32 bit and 64 bit. Drivers for laptop Dell OptiPlex 3010: there are 18 devices found for the selected. Synaptics, Intel(R) 6 Series/C200 Series Chipset Family SMBus Controller -. May 21, 2012 - The yellow exclamation point is an error, not a missing driver. Open the device to. Double click on the SM Bus Controller with?
I would suggest you try connecting the device to a different USB port and check.
Method 1:
Refer the link bellow and run the fixits:
Hardware devices are not working or are not detected in Windows
Diagnose and fix Windows USB problems automatically
Method 2:
I would suggest you download and install the latest drivers for the USB controllers and the Chipset from the Manufacturer’s website bellow.
Note: You can ask the computer manufacturer for assistance. Installing the Chipset drivers are at your own risk.
Dell Optiplex 3010 Sm Bus Controller Driver Reviews
Method 3:
Disable the 'Selective Suspend' feature of the USB hub driver and check the issue. Please follow these steps:
a. Press Windows + R keys, type regedit in run window and press Enter.
b. Locate and then click the following key in the registry:
HKEY_LOCAL_MACHINESystemCurrentControlSetServicesUSB
c. On the 'Edit' menu, point to 'New', and then click 'DWORD'.
d. Type 'DisableSelectiveSuspend', and then press Enter.
e. On the 'Edit' menu, click 'Modify'.
f. Type '1', and then click 'OK'.
Note: This setting affects all USB host controller drivers in the system.
Registry disclaimer
To do so: Important this section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
Dell Optiplex 3010 Sm Bus Controller Drivers
322756 (http://support.microsoft.com/kb/322756/ )
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How to back up and restore the registry in Windows
Perform steps from the link mentioned below and see if it helps.
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Tips for solving problems with USB devices.
http://windows.microsoft.com/en-US/windows-vista/Tips-for-solving-problems-with-USB-devices
Sm Bus Controller Driver For Compaq
Hope the information helps. Keep us updated about the status of the issue persists. We will be happy to help.