My relatively new (April 2012) Alienware was working like a charm, till this past, fateful Friday. As I was planning to reposition myself into a more pleasing configuration, my AC plug fell out of the slot. Now on any normal day this would have been remedied quite quickly, but today was not my lucky day. My computer immediately shut down. After countless minutes of button-pressing, I figured out that my computer now relies solely on the AC adapter and can't use its own battery any more. I tried flashing the BIOS and restarting, neither of which worked. Also tried updating my video card, that failed to remedy my problem. Anyways, I'm currently on the BIOS entitled AO8 on a Windows 7 Alienware m14x. If you need any extra information on my computer, please feel free to ask. I'd really appreciate promptness on this one, as Hurricane Sandy might knock out my power at any moment! So thanks in advance!
Try a power cycle: remove the battery and the ac adapter, (If you know how to and feel confident enough, also remove the CMOS battery) and with everything out, hold the power button down for 30 seconds, then put everything back in, and test the system.
Let me know how it goes.
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