HP 9000 rp5400 Servers - Manual (Page 29)

3 Installing Additional Components
Additional Components
Some internal components are too delicate to be installed in the server prior to shipping. These
internal components are shipped with the server, but are packed separately. They can be installed
after the cabinet has been unpacked and positioned.
Some of the internal components that are packed separately are not user-installable. To maintain
warranty validation, these items must be installed by a Hewlett-Packard Customer Engineer.
If you received either (or both) of the components listed below, contact your Hewlett-Packard
provider to arrange for installation.
• Central Processing Units (CPUs)
• Power Distribution Units (PDUs)
Installing Memory
Memory Configuration Rules
rp54xx servers have 16 slots (8 DIMM pairs) for memory DIMMs. These slots are numbered 0a/b,
1a/b,... 7a/b. 8 of these slots (4a/b - 7a/b) are disabled on rp5400 servers. rp5450 servers can access
all slots. rp5400 and rp5450 servers have DIMM slots located on the System Board.
rp5470 servers install DIMMs using Memory Carriers. The Memory Carriers fit into slots on the
System Board.
The following rules govern the installation of memory DIMMs for rp5400, rp5450, and rp5470
servers:
• Memory must be installed in DIMM pairs.
• The capacity of DIMMs within a pair must be the same.
• Install DIMMs with the greatest capacity in the lowest slot numbers.
• Install DIMMs the following slot order: 0a/b, 1a/b, 2a/b, 3a/b, and so on.
Installing rp5400 and/or rp5450 DIMMs
1. Power down and unplug the rp54xx server.
CAUTION: DC voltages are present when the server is connected to AC power. Do not
install or service rp54xx internal components while DC voltage is present. Failure to observe
this precaution can result in damage to the server.
2. Loosen the captive T-15 screws that hold the top cover in place, then grasp the strap handle,
raise the cover slightly, and pull the cover toward the front of the server to free the cover
tabs from the slots in the chassis. The air baffle will be exposed.
Additional Components 29