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On
Standby
Diagnostics
Locked
Sun Enterprise 450 and Sun Ultra 450 Keyswitch Location
FIGURE 4-4
Before Updating the Flash PROM
Before you begin updating the flash PROM, please note the following.
Caution – Do not interrupt power during flash PROM updating. When you are
!
using the update routine, do not remove or insert system boards.
Note – If power is interrupted during flash PROM updating, follow the power
interruption recovery procedures covered later in this chapter.
To Update the Flash PROM
1. If you shut down your system to set the write-enable jumper (Ultra 1, Ultra 2
systems), turn the system on so it can boot.
Chapter 4
Updating the Flash PROM on the Ultra 1, Ultra 2, Ultra 450, and Sun Enterprise 450 Systems
67
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