This I know is going to be of almost no help, but my NT server did this too
for 7 or 8 weeks then switched to complete lock-up, no mouse no nothing.
 Re-boots always brought the system up with no data lost, no detectable
hardware problems in tests.  First I thought, bad operating system or
registry, then bad motherboard, but a friend suggested replacing the PCI
3com card with a good Kingston ISA card, just in case the 3com was good and
the PCI sub-system was giving us trouble.  Problem solved.  So I put the
3com in a desktop, and the desktop started acting up on regular, but long,
maybe 18 hours, intervals.  So I trashed the 3com.  Admittedly, your
problem could be the merest of coincidences to mine.  Oh, I assume it did
work fine for awhile.  Mine was running over a year before it started
giving trouble.

tom turak
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Wondering if anyone has encountered this problem:

Our NT4 (SP3) server reboots itself for no apparent reason every 3 days
or so.  The system, assembled by MicroPro last summer, includes:
The system has two NICs, a Daystar for Appletalk/Localtalk for our
older Macs and a 3Com Ethernet card.

Chuck Finnigan
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