MacBook makes tones and won't start

I bought I new MacBook last week. But since yesterday I get kernel panics. And now it even won't start.
It makes tones after powering up. First there were three tones. But after I changed the memory modules, it makes 1 tone repeatedly.
Is my standard Apple memory broken?

But, if both chips work in the upper slot, then it really is the lower slot that's the problem. I don't think the hardware test that's running before the tones is capable of determining if it's the chip or the slot itself that's failed, only that the test that was supposed to go to the RAM chip has failed. Either way, it does need to be serviced. The search function is running again, here's the article about startup tones:
http://support.apple.com/kb/HT2341
-Doug

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