HP DL785 Processor Option Installation Instructions, Third Edition - HP ProLia - Page 1

Processor Option Installation Instructions for HP ProLiant DL785 Servers Overview This document provides the procedure for installing a processor and heatsink. Kit contents  Processor memory cell assembly (four)  Processor with installation tool (four)  Heatsink (four)  DIMM filler (12)  This document SW1 instructions for quad-core 3.1 GHz or greater and sixcore processors CAUTION: All supported AMD Opteron quad-core processors 3.1 GHz or greater and all supported AMD Opteron six-core processors require the system maintenance switch, located on the I/O backplane, (SW1) position 5 to be in the On position. CAUTION: HP recommends updating to the latest version of firmware. Earlier firmware versions might not validate the required switch setting for these processors. NOTE: Six-core AMD Opteron Processors might show a 1 MB reduction in available L3 cache when performance enhancing HT Assist is enabled because HT Assist requires 1MB of L3 cache per CPU to operate. Installing a processor The server supports a four- or eight-processor configuration. CAUTION: The cell filler is required in cells 3 - 6 in a four-processor configuration. CAUTION: To prevent damage to electrical components, properly ground the server before beginning any installation procedure. Improper grounding can cause electrostatic discharge. CAUTION: To avoid damage to the processor and system board, only authorized personnel should attempt to replace or install the processor in this server. CAUTION: To prevent possible server malfunction and damage to the equipment, multiprocessor configurations must contain processors with the same part number. 1