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#21
Dismantling the laptop may void the warranty; I don't suggest it yet. Don't worry about removing the network card, serial adapters, whatever all; chances are you don't even have the hardware in the machine!
We can try to rule out RAM problems by software diagnostic programs. Could you try running Memtest86 for several hours, or about 7 passes?
Copying the recovery partition most likely won't work; it is designed to work only on one machine, or at least only Dell machines of that model.