Sun Microsystems 60 用户手册
10-20
Sun Ultra 60 Service Manual • August 2001
10.7.1
Removing a Motherboard
1. Power off the system unit.
2. Remove the side access cover.
Caution –
Use proper ESD grounding techniques when handling components. Wear
an antistatic wrist strap and use an ESD-protected mat. Store ESD-sensitive
components in antistatic bags before placing them on any surface.
components in antistatic bags before placing them on any surface.
3. Attach a wrist strap.
4. Remove the power supply.
5. Remove the motherboard as follows:
a. Remove the following from the motherboard:
■
PCI card(s). See Section 10.3.1, “Removing a PCI Card” on page 10-7.
■
UPA graphics card(s). See Section 10.4.1, “Removing the UPA Graphics Card”
on page 10-10.
on page 10-10.
■
Audio card. See Section 10.6.1, “Removing the Audio Card” on page 10-16.
b. Unlatch the shroud from the PCI fan bracket hinge clip.
c. Disconnect the following:
■
Peripheral cable. See Section 8.4.1, “Removing the Peripheral Power Cable
Assembly” on page 8-11.
Assembly” on page 8-11.
Note –
Unconnected peripheral power cables should remain clipped inside the
main chassis.
■
External cables.
■
DC power cable.
■
Internal SCSI cable assembly.
■
PCI fan assembly power connector.
d. Using a number 2 Phillips-head screwdriver, proceed as follows:
■
Remove the three screws securing the motherboard to the chassis (
).