Sun Microsystems SPARCstation 5 Model 110 User Manual

4-2 SPARCstation 5 Service Manual—November 1996
4
Table 4-1 Troubleshooting Tips
Problem Action
LED on front of system is not lit. Verify that the power switch is turned on and that the power cord is connected.
If both the power switch and the power cord are connected, shut down the
system and verify that the LED cable is connected. If the LED cable is connected,
the power supply may be defective. Replace the power supply. See Chapter 8,
“Major Subassemblies.”
Disk drive fails to boot or does
not respond.
Shut down the system. The SCSI controller may be defective. See Section 4.3.1,
“Verifying the Built-In SCSI Controller.” Verify that each SCSI device is assigned
a unique SCSI target address. See Appendix C, “SCSI Targeting,” for important
additional information.
Operating system does not
recognize disk drive at boot up.
Shut down the system. Verify that each SCSI device is assigned a unique SCSI
target address. See Appendix C, “SCSI Targeting,” for important additional
information.
No video output on monitor. Verify that the power cord is connected. Use a volt-ohmmeter (VOM) to check
voltages. See Section 4.1, “No Video Output on the System Monitor.”
Slow disk drive response. If many SCSI devices are connected to the same SCSI bus and if some of these
devices are “fast SCSI” devices, you can install an FSBE/S SBus card to the
“fast SCSI” devices to speed up performance.
Read, write, or parity error
reported by the operating
system or applications.
Replace the disk drive indicated by the failure message. Solaris 1.x operating
systems identify the disk drive installed in the lower bay (SCSI target ID 3) as
sd0 and the disk drive installed in the upper bay (SCSI target ID 1) as sd1. With
Solaris 2.x operating systems, the two drives are identified as c0t3d0 and
c0t1d0, respectively.
Power on does not succeed.
LEDs on keyboard do not light
and there is no tone from the
keyboard when you turn on the
system power.
The power supply may be defective. See Section 4.2.1, “Power Supply Test.”
Power on does not succeed. The
system fails to initialize but the
LEDs on the keyboard light and
there is a tone from the
keyboard.
The system board may be defective. See Section 4.2.2, “System Board Test.”

Sun Microsystems SPARCstation 5 Model 110 Specifications

General

Brand	Sun Microsystems
Model	SPARCstation 5 Model 110
Category	Desktop
Language	English