Sun 4/110 hanging

[Rich Winkel UMC Math Department]

HELP!  I'm at my wits end ... at random times our 4/110 'goes to sleep'
for extended periods.  The system appears to continue running, but at an
EXTREMELY slow pace.  The led's in the back continue the normal pattern,
but very slowly.  It's impossible to do a ps to find out what's going on,
but we've been through 3 cpu boards and two alm-2 cards, and the symptoms
remain, so at least I know it's not hardware.  We're running 4.0.3 and
this machine is a server for a diskless 4/110.

Any help greatly appreciated!
Rich Winkel
MATHRICH at UMCVMB.MISSOURI.EDU