81
Servicing Motherboard Components
These topics explain how to replace the motherboard and its components in the
SPARCEnterprise T5120 and SPARC Enterprise T5220 servers.
■“Servicing FB-DIMMs” on page 81
■“Servicing the Air Duct” on page 100
■“Servicing PCIe/XAUI Risers” on page 102
■“Servicing the Battery” on page 112
■“Servicing the SCC Module” on page114
■“Servicing the Motherboard Assembly” on page 117
Related Information
■“Infrastructure Boards in SPARCEnterprise T5120 Servers” on page 2

Servicing FB-DIMMs

These topics explain how to identify,locate, and replace faulty FB-DIMMs. They also
describe procedures for upgrading memory capacity and provide guidelines for
achieving and maintaining valid memory configurations.
■“Memory Fault Handling Overview” on page82
■“Identify Faulty FB-DIMMs Using the show faulty Command” on page 83
■“Identify Faulty FB-DIMMs Using the FB-DIMM Fault Locator Button” on page 83
■“Remove FB-DIMMs” on page 85
■“Install Replacement FB-DIMMs” on page 87
■“VerifySuccessful Replacement of Faulty FB-DIMMs” on page 89
■“Upgrade Memory Configuration WithAdditional FB-DIMMs” on page 91
■“FB-DIMM Configuration Guidelines” on page 95
■“FB-DIMM Configuration Reference” on page 96