Sun Microsystems Netra T2000, Service Manual

Page: 136 / 138

122 Sun Fire T2000 Server Service Manual • October 2005
TABLE A-1
Sun Fire T2000 Server FRU List
Item No. FRU
Replacement
Instructions
Description
FRU
Name
1
1 Motherboard
assembly “To Remove the
Motherboard
Assembly” on
page 84 The motherboard assembly is comprised of the
following boards that must be replaced as a single
FRU:
• The CPU board – Comprises the central
processing subsystem for the Sun Fire T2000
system, which includes the UltraSPARC T1 CPU
processor, 16 DIMM connectors, the memory
controllers, and supporting circuitry.
• The I/O board —Provides the I/O logic,
including the connectors for the PCI-X and PCI-E
interfaces, Ethernet interfaces, all the power
interconnections, and miscellaneous logic.
Note: This assembly is provided in different
configurations to accommodate the different
processor models (4, 6, and 8 core).
MB
IOBD
2 System
controller
board (OSP
board) “To Remove the
System Controller”
on page 82 This board implements the system controller
subsystem. The SC board contains a PowerPC
Extended Core and a communications processor
that controls the host power and monitors host
system events (power and environmental). It holds
a socketed EEPROM for storing the system
configuration, all Ethernet MAC addresses, and the
host ID. This board only draws power from the
3.3V standby supply rail, which is available
whenever the system is receiving AC input power,
even when the system is turned off. SC
3 System
controller
battery “To Remove the
Battery on the
System Controller”
on page 101 Battery SC/BAT
4 SAS disk
controller card “To Remove PCI-E
and PCI-X Cards”
on page 75 This PCI-X SAS disk controller card is not present
on all Sun Fire T2000 servers.
5 DIMMs “To Remove
DIMMs” on page 77 Can be ordered in the following sizes:
• 512 MB
• 1 GB
• 2 GB See
TABLE 4-
1
In
Chapter
4
.
6 Power
distribution
board “To Remove the
Power Distribution
Board” on page 90 Provides the main 12V power interconnect between
the power supplies and the other boards. PDB