Windows 7: Base System Device drivers missing
the Ricoh driver usually installs 3 devices, extract the Dell Vista driver (e.g. with Universal Extractor) and look for the following subdirectories and install the driver manually via the device manager:
xd, sd and smc
worked for me on an Inspiron 1525 with Windows 7 32-bit yesterday.
Change the view to View by Connection, and then see what it's connected to. That should help determine which devices these are.
I would guess they're SD media controller or something like that.
Edit
Did you update your chipset?
Be sure to install everything in the proper order, as listed here.
Desktop System Software (DSS) or Notebook System Software (NSS) - A vital utility that provides critical updates and patches for the operating system. If you are reinstalling Windows or updating all drivers, it is important that this software be installed first. This is located under the System Utilities Category on the Drivers and Downloads page.
Chipset - Helps Windows control system board components and controllers. This is located under the Chipset Category on the Drivers and Downloads page.
Video Adapter - Enhances video performance. This is located under the Video Category on the Drivers and Downloads page.
Network Interface Card (NIC) - Enhances the network controller for Internet or network access. This is located under the Network Category on the Drivers and Downloads page.
Laptops Only: Dell Quickset or Dell Control Point Manager (DCP) - Controls power management, ambient light sensor, wireless profiles, and security features on laptops. This is located under the Applications on the Drivers and Downloads page.
Audio Adapter - Enables and enhances the audio controller. This is located under the Audio Category on the Drivers and Downloads page.
Modem - Allows dial-up capability. This is located under the Communication Category on the Drivers and Downloads page.
Wireless Network Card - Enables and enhances the wireless network controller. This is located under the Network Category on the Drivers and Downloads page.
Touchpad, Pointer, Trackstick, Mice, and Keyboards - Enhances the pointing device features. This is located under the Input Device Drivers Category on the Drivers and Downloads page.
Other Devices Intel vProTM or AMTTM - Enhances system manageability. This is located under the Chipset Category on on the Drivers and Downloads page. Bluetooth ® Module located under the Network Category on the Drivers and Downloads page. Dell Wireless Mobile Broadband Cards located under the Communication Category on the Drivers and Downloads page. PCMCIA/Smartcard controller located under the Security Category on the Drivers and Downloads page. Touch Screen Digitizer Enables touch screen mouse control available on select Dell laptops. This is located under the Input Category on the Drivers and Downloads page.