Specifications

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Series 400 Systems EEPROM
The EEPROM stores the node ID?the network priority, and at SR1O.3PSK8)
L
the bus clock speed used by Domam compatibles terns. The EPROM also
C?E
stores the I/O configuration information used b P-UX compatible systems.
To retain this information when you replace a PU board: transfer the original
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EEPROM to the new CPU board. If you replaee a defectwe EEPROM, use the
EEPROM part numbers listed in Chapter 7 to order a replacement EEPROM
with the same node ID as the original EEPROM.
CAUTION Use an anti-static strap to prevent electrostatic dam-
age to the EEPROM. Electrostatic damage ean de-
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stroy the EEPROM or erase configuration informa-
tion from the EEPROM.
This section e Iains how to remove the EEPROM from a CPU board beeause
Ythe EEPROM as failed or because you are replacing the CPU board. Refer to
the appropriate subsection for the type of procedure that you are performing.
lkansferring an EEPROM to a Replacement CPU Board
When replaeing a CPU board, remove the EEPROM from the failed CPU
board and install it in the new/exchangeCPU board. Refer to Fi re 3-22 for
F
the Ioeation of the EEPROM on a Model 400t,425t,and 400dl PU board. Re-
fer to Fi re 3-23 for the location of the EEPROM on the two types of Model
@O##fi and 433sCPU boards. Use an EEPROM puller to remove the
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Configuration 3-23