System Board; Removing The System Board - Sun Microsystems SPARCstation 5 Model 110 Service Manual

11.4

System Board

11.4.1

Removing the System Board

1. Shut down and power off the system.
See Section 6.1 "Powering Off the System."
2. Detach all external cables from the rear panel except the power cord.
3. Remove the cover and attach a wrist strap.
See Chapter 7.
4. Remove all SBus cards.
See Section 11.1.1 "Removing an SBus Card."
5. Remove all DSIMMs.
See Section 11.3.1 "Removing a DSIMM."
6. Remove the NVRAM.
See Section 11.5.1 "Removing the NVRAM Chip."
7. Unplug the DC power, SCSI data, diskette data, speaker/LED, and CD-ROM
audio cables from the system board.
See
FIGURE 11-18
connector. See Section 11.1.1 "Removing an SBus Card."
11-18 SPARCstation 5 Model 110 Service Manual • November 1996
. You may need to remove an SBus card to access the audio