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#21
Welcome to the forum Martin,
Let's get you started with the ones you gave us ID's for,
These will be listed in the order you should install them.
Chipset (SM Bus Controller)
Intel HM67 Express Chipset Family Driver Driver Details | Dell UK
Intel Management Engine (PCI)
Intel Management Engine Interface Driver Driver Details | Dell UK
Wireless Intel (Network)
Intel Centrino Wireless-N 1030/Advanced-N 6230 Bluetooth Adapter Driver Driver Details | Dell UK
Realtek (Ethernet)
Realtek RTL8111E-VB Gigabit and RTL8105E-VB 10/100 Ethernet Controller Driver Driver Details | Dell UK
This one DW5550 is mobile broadband wireless
Dell Wireless 5550 HSPA Mobile Broadband Mini-Card Driver Driver Details | Dell UK
(There is also a firmware and an application for the one above but lets stick with the driver for now.)
Those are all from the UK site by the way,
Product Support | Dell UK
The unknowns you mention may give up more info after installing the chipset so you will have to post back with the updated info or just run this and post the file it creates.
System Information File - Create in Windows
I'd be willing to bet at least one is the card reader, freefall sensor might be the other but those are just guesses, better to wait and see though.