SPARC Enterprise T5120 and T5220 Servers Service Manual - Fujitsu
SPARC Enterprise T5120 and T5220 Servers Service Manual - Fujitsu
SPARC Enterprise T5120 and T5220 Servers Service Manual - Fujitsu
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Infrastructure Boards in <strong>SPARC</strong><br />
<strong>Enterprise</strong> <strong>T5120</strong> <strong>Servers</strong><br />
<strong>SPARC</strong> <strong>Enterprise</strong> <strong>T5120</strong> servers are based on a 1U chassis family. The following<br />
table provides a summary of the circuit boards used in these servers.<br />
Board Description<br />
Motherboard This board includes two CMP modules, slots<br />
for 16 FB-DIMM, memory control subsystems,<br />
<strong>and</strong> all service processor (ILOM) logic. It also<br />
hosts a removable SCC module, which<br />
contains all MAC addresses, host ID, <strong>and</strong><br />
ILOM configuration data.<br />
Power distribution board This board distributes main 12V power from<br />
the power supplies to the rest of the system.<br />
This board is directly connected to the paddle<br />
card, <strong>and</strong> to the motherboard via a bus bar<br />
<strong>and</strong> ribbon cable. This board also supports a<br />
top cover safety interlock (“kill”) switch.<br />
Paddle card This board serves as the interconnect between<br />
the power distribution board <strong>and</strong> the fan<br />
power boards, disk drive backplane, <strong>and</strong> front<br />
I/O board.<br />
Fan power boards (2) These boards carry power to the system fan<br />
modules. In addition, these boards contain fan<br />
module status LEDs <strong>and</strong> transmit status <strong>and</strong><br />
control data for the fan modules.<br />
Hard drive backplane This board includes the connectors for the<br />
hard drives. This board also contains the<br />
interconnect for the front I/O board, Power<br />
<strong>and</strong> Locator buttons, <strong>and</strong> system/component<br />
status LEDs.<br />
Each drive has its own Power/Activity, Fault,<br />
<strong>and</strong> Ready-to-Remove LEDs.<br />
Front I/O board This board connects directly to the hard drive<br />
backplane. This board is packaged with the<br />
DVD drive as a single unit.<br />
Related Information<br />
■ “Infrastructure Boards in <strong>SPARC</strong> <strong>Enterprise</strong> <strong>T5220</strong> <strong>Servers</strong>” on page 3<br />
2 <strong>SPARC</strong> <strong>Enterprise</strong> <strong>T5120</strong> <strong>and</strong> <strong>T5220</strong> <strong>Servers</strong> <strong>Service</strong> <strong>Manual</strong> • July 2009