Sun Microsystems Ultra 5, Service Manual

Page: 124 / 258

6-12 Sun Ultra 5 Service Manual • February 2000
ii. Slide the diskette drive bracket forward until it stops.
iii. Using a No. 2 Phillips screwdriver, tighten the three securing screws.
d. Connect the speaker cable to the motherboard (J18).
2. Detach the wrist strap, replace the system cover, and power on the system as
decribed in Chapter 10.
6.4 CPU Fan Assembly
To remove and replace the CPU fan assembly, proceed as follows.
6.4.1 Removing the CPU Fan Assembly
1. Power off the system, remove the system cover, and attach an antistatic wrist strap
as described in Chapter 5.
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.
2. Remove the CPU fan assembly as follows (
FIGURE 6-7
):
a. If necessary, remove any long PCI cards from riser board connectors 1 and 3 to
provide clearance.
See Section 8.4.1 “Removing a PCI Card” on page 8-9.
b. Disconnect the CPU fan assembly power-cable connector from the motherboard
(J19).
c. Press the fan retaining clip and remove the CPU fan assembly from the chassis.