To install a memory module:

CAUTION: HP only ships DIMMs that are electrically and thermally compatible with this product. Because third-party DIMMs might not be electrically or thermally compatible, they are not supported by HP.

NOTE: DIMMs and their sockets are keyed for proper installation. Be sure these guides line up when installing a DIMM.

Loading Order for Single Processor Configurations

Use the following image as a guide for installing memory in single processor configurations only. You must install memory modules in valid configurations:

•Install the first DIMM pair in socket set 1 (blue sockets)

•Install the second DIMM pair in socket set 3 (black sockets)

Loading Order for Dual Processor Configurations

Use the following image as a guide for installing memory in dual processor configurations only. You must load memory modules in valid configurations:

•Install the first DIMM pair in socket set 1 (blue sockets)

•Install the second DIMM pair in socket set 2 (blue sockets)

•Install the next two DIMM pairs in socket sets 3 and 4 (black sockets)

1.Disconnect power from the system (page 79), remove the access panel (page 86), and remove the memory duct (page 92).

2.Gently push outwards on the socket levers.

Removal and Replacement Procedures

Removal and Replacement of Components 95