Sun Microsystems Enterprise 250 Owner's Manual page 138

c. Reconnect the SCSI backplane data cable to connector J1801.
7. Reconnect any external cables to the rear panel of the system.
See "Locating Rear Panel Features" on page 5.
Note -
switches are activated. This safety mechanism prevents any DC voltages (except
5V standby power) from reaching the main logic board while the side access
panel is removed.
What Next
Remove the NVRAM module from the replacement board and install it on the old
board for return to Sun Microsystems. See "How to Install the NVRAM/TOD
Module" on page 124.
Complete these tasks to transfer the components that you removed from the old
main logic board to the new board:
4 "How to Install the SSP Paddle Card" on page 120
4 "How to Install a CPU Module" on page 110
4 "How to Install the NVRAM/TOD Module" on page 124
4 "How to Install a Memory Module" on page 107
Complete this task to reassemble the system:
4 "How to Install the Side Access Panel" on page 62
When you are ready to restart the system, be sure to run POST and OpenBoot
Diagnostic tests to verify that the system functions correctly with the new parts you
have just installed. For additional information, see Chapter 12.
Note -
Control (RSC) configuration parameters before you can use RSC. During RSC
configuration, RSC parameters are typically backed up to a hard disk drive. You
must restore those parameters to the RSC SEEPROM on the new main logic board.
For additional details, see the Remote System Control (RSC) User's Guide.
Sun Enterprise 250 Server Owner's Guide ♦ Revision A, June 1998
104
When the side access panel is removed, the system power interlock
After installing the new main logic board, you must restore Remote System