My AlphaPC 164 running NetBSD mysteriously hung, so I pressed the reset 
button, and it doesn't seem to boot. It doesn't even get to the point 
where it tries to boot. When I press the reset button, or power cycle 
it, it prints on the console:

ff.fe.fd.fc.fb.fa.f9.f8.f7.f6.f5.f3.f2.f1.f0.
ef.b0.b1.b2.b3.ee.ed.ec.f4.

and it hangs. Anyone know what that means? If I press the halt button, 
it prints:

ff.halt code = 1
operator initiated halt
PC = 769b4
fe.fd.fc.fb.fa.f9.f8.
Brk 0 at 0015C860

0015C860!BPT           (New IPL = 30)