Looks like my nice new Intel SR1630HGP server, with its Intel Xeon X3460 processor is affected by the CLOCK_WATCHDOG_TIMEOUT STOP error discussed in KB975530:

0: kd> !analyze -v
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*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
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CLOCK_WATCHDOG_TIMEOUT (101)
An expected clock interrupt was not received on a secondary processor in an
MP system within the allocated interval. This indicates that the specified
processor is hung and not processing interrupts.
Arguments:
Arg1: 0000000000000019, Clock interrupt time out interval in nominal clock ticks.
Arg2: 0000000000000000, 0.
Arg3: fffff880021e1180, The PRCB address of the hung processor.
Arg4: 0000000000000006, 0.

(additional details follow that but don't really add anything)

GRRRRR!!! Looks like, at the time of this writing, the KB article needs to be updated, since the Xeon 3400 series aren't Xeon 5500's, nor Core i5's, nor Core i7's...

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