NEC MC2400 - Manual (Page 80)

3-30 Configuring Your System
Fault Resilient Booting (FRB) Timer Enable Jumper
Fault resilient booting insures the system will not stop from a boot problem.
Two sets of timers are implemented that will automatically reset the system if
the system should halt for some reason.
! FRB 2 - 5 sec timer. If the primary processor does not come up in 5
seconds the system will automatically reset and switch to the secondary
processor secondary (if installed otherwise it will try to boot again off of
the primary.)
! FRB 3 - 7 minute timer. If the system does not make it up to the end of
POST in 7 minutes, the system will automatically reset and try again. It
is assumed that the processor failed regardless of what may have caused
the system to hang. The primary processor is taken off line and the
system will boot off the secondary (if installed otherwise it will try to
boot again off of the primary.) Bad memory or a bad plug in card may
cause a FRB 3 failure.
All failures are logged to the system event log.
The system will remember all FRB errors and display them at the end of POST
until you select the Processor Retest option from the BIOS Setup utility.
! CAUTION
For normal operation leave FRB Timer Enable jumper at
factory-default setting.
To disable the FRB Timer Enable:
1. Power off the system and remove the left panel as described in Chapter 4 of
this guide.
2. Move the FRB Timer Enable jumper from pins 1-2 to pins 2-3. Refer to
“Configuring System Board Jumpers” to see the location of this jumper.
3. Replace the panel and power on the system.
4. Power on the system and wait for POST to complete.
5. Run the SSU to configure the system.