Sun Microsystems Ultra 24 Service Manual page 33

Troubleshooting Procedures (Continued)
TABLE 3-1
Problem Possible Solution
Newly installed • Make sure that the memory is properly seated on the DIMM
memory is not
detected.
• Move the memory to the other DIMM socket to determine
• Make sure that you are using 512 MB, 1 GB, or 2 GB registered
• Make sure that the memory is installed in pairs.
System cannot read Check to see that the disk is properly seated. If that does not resolve
the disk the issue, do the following:
information.
1. Turn off the workstation by pressing the Power button.
2. Remove the left side access panel.
3. Check to make sure that the power and data cables are connected
4. Replace the left side access panel.
5. Turn on the workstation.
DVD does not eject • Move the mouse or press any key on the keyboard. The drive
from the drive the
Eject button is
• Use the utility software installed on your workstation to eject the
pressed.
System cannot read Check the following:
DVD information.
• Are you using the correct type of DVD?
• Do other DVDs work in this drive?
• Is the DVD properly inserted in the drive?
• Is the DVD clean and unscratched?
• Are the cables connected to the DVD drive?
Keyboard or mouse • Are the keyboard and mouse Type 7? Verify the model on the
does not respond to
actions.
• Verify that the mouse and keyboard cables are connected to the
• Verify that the workstation is powered on and that the front
sockets.
whether the socket is defective.
DDR2 667 SDRAM modules with 3.05 cm maximum height.
to the backplane of the disk drive and that the pins in the cable
and connector are not bent.
might be in the low-power mode.
DVD.
underside of the keyboard.
onboard USB 2.0 connectors on the workstation.
Power LED is illuminated.
Chapter 3 Troubleshooting 3-5