control to it. If the bootrom image is considered invalid then POST will repeat the
bootrom checks at the location of the secondary bootrom. This step is indicated by the
flash of the SCSI4 LED.
S
B
TART OF
OOTROM
When POST starts a bootrom image it will display a line like:
Bootrom (*FFF00100)(2)
The number in the first parenthesis is the address of the bootrom's startup code. The num-
ber in the second parenthesis is flag to the operating system to determine what type of boot
it has – warm or cold. Bootrom code will set the ERR LED when it reconfigures the PLD.
Figure D-9: Start of Bootrom
POST Service Menu
The POST Service Menu is enabled by using a slim tool, for example, an unfolded paper
clip, to depress the unlabeled button between the RST button and PWR LED.
Figure D-10: NMI 1
The button may be depressed any time during the memory tests.
Figure D-11: NMI 2
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POST Service Menu