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Getting a random beep on Dell Inspiron 1545
I'm getting a single beep at seemingly random intervals on my Dell Inspiron 1545, Windows 7 64 bit. The beep comes from inside the laptop, it doesn't come through the main speaker (from the motherboard I assume).
I've searched and have found the beep codes and according to that it is "BIOS checksum failure. Possible motherboard failure". I have no idea what a BIOS checksum failure means though. I have been told that this isn't a beep code though as it doesn't happen at boot. It can happen every few minutes or several days can pass without hearing it.
I don't seem to have any problems at all, everything runs as it should. I think the beeping might have started when I replaced my hard drive, although I'm not 100% sure about that. I can't really contact Dell as the warranty has run out.
My battery is also pretty much dead and while I don't need it at all, I wonder if this may have something to do with it?
I have disabled the beep entry in the registry but that hasn't solved the problem. I have also flashed the bios with the latest one but this also didn't help.
This is my system spec in case it is of any help: