Sun Microsystems Sun Ultra 60 Service Manual page 147

Note -
Unconnected peripheral power cables should remain clipped inside
the main chassis.
4
External cables.
4
DC power cable.
4
Internal SCSI cable assembly.
4
PCI fan assembly power connector.
d. Using a number 2 Phillips-head screwdriver, proceed as follows:
4
Remove the three screws securing the motherboard to the chassis (Figure
10–7).
4
Loosen the two captive screws (until they pop up) securing the shroud
assembly and the motherboard to the chassis (Figure 10–8).
e. Grasping the shroud assembly handle, lift the motherboard from the chassis.
Caution - Handle the motherboard by the handle, back panel, or the edges only.
6. Place the motherboard on an antistatic mat.
7. Remove the following from the motherboard:
4 CPU modules. See Section 10.1.1 "Removing the CPU Module" on page 10-2.
4 NVRAM/TOD with carrier. See Section 10.2.1 "Removing the NVRAM/TOD"
on page 10-4.
4 DIMMs. See Section 10.5.1 "Removing a DIMM" on page 10-14.
Motherboard and Component Replacement
10-23