From what I read in the DS10L user's guide, 'watchdog' is not used by 
'any OS software'.
It also leads me to believe that the DS10L doesn't use the timer either.

        PLATFORM STATUS
mFirmware Revision: V1.0
Server Power: ON
RMC Halt: Deasserted
RMC Power Control: ON
Power Supply: OK
System Fans: OK       CPU Fan: OK
Temperature: 44.00Cm (warnings at 55.00C, power-off at 60.00C)
Escape Sequence: ^[^[RMC
Remote Access: Disabled
RMC Password: not set
Alert Enable: Disabled
Alert Pending: ;1;5mYESm
Init String:
Dial String:
Alert String:
Com1_mode: SNOOP
Last Alert: ;1mAC Lossm
Watchdog Timer: 60 seconds
Autoreboot: OFF
Logout Timer: 20 minutes
User String:

Is the 'autoreboot' flag linked with the watchdog timer and does it 
actually work?