26 Sep
2011
26 Sep
'11
11:25 a.m.
No beeps in diagnostic mode is troubling. It could be as simple as the
beeper not working, but more likely it is the IOC (pack panel board) is
not functioning properly.
I've not really been following this thread (not having such a machine,
only the older MDS), but have you checked the 'obvious' yet? Namely that
the power supply rails are present and correct (and don't have excessive
ripple), that the CPU is being clocked, that the Reset line is not being
held asserted, and so on?
-tony