Sun Oracle Sun Fire X4270 M2 Service Manual page 123

d. Remove the top cover from the server.
See Section 2.10, "Removing the Server's Top Cover" on page
2. Remove the plastic air baffle.
See Section 4.3.2, "Remove Air Baffle" on page
3. Disconnect the SAS storage drive cables from the SAS PCIe card or the
on-board SATA connectors located on the motherboard.
Caution – The SAS storage drive cables are delicate. Ensure they are safely out of
the way when servicing the motherboard.
4. Remove the following components from the motherboard:
Memory DIMMS. For instructions, see
■
on page 4-8.
PCIe risers and attached PCIe cards. For instructions, see
■
"Remove PCIe Riser" on page
CPUs. For instructions, see
■
5. Remove the motherboard (
a. Disconnect the power distribution board ribbon cable [1].
b. Remove the four screws that secure the motherboard to the bus bar [2].
Use a No. 2 Phillips screwdriver.
c. Loosen the green captive screw on the front of the motherboard that secures
the motherboard to the chassis [2].
d. Using the finger loop just below the four screws that secure the motherboard
to the bus bar, carefully slide the motherboard to the rear of the chassis, and
lift it out of the chassis [2].
e. Place the motherboard on an antistatic mat.
4-15.
Section 4.2.6, "Remove Faulty DIMMs"
4-17.
Section 4.7.1, "Remove CPU" on page
).
FIGURE 4-15
Chapter 4 Servicing Motherboard Components
2-33.
Section 4.4.1,
4-27.
4-37