QuickSpecs

Processor Configuration
Processor ConfigurationProcessor Configuration
Processor Configuration
Rules
RulesRules
Rules
The Intel Dual core Itanium processor consists of 2 processor cores. You may order and upgrade
the Dual core Itanium processor in increments of one core (the other core in a processor is iCAP).
The Intel Itanium 1.6 GHz processor consists of one processor core and can only be ordered or
upgraded in pairs (two processors). This has been obsoleted and is only available for field
upgrades.
There must be at least two processors (single core Itanium processors) active (non iCAP) on each
cell board.
There must be one active processor core (the other being iCAP) for Dual core Itanium processors
on each cell board.
On each cell board, processors must be installed in the following sequence 0, 2, 1, 3
HP Integrity rx8620 1.6 GHz 6 MB Level 3 cache processors may be carried forward to rx8640
servers.
Intel Single core Itanium processors and Intel Dual core Itanium processors can be mixed in the
same chassis as long as they are in separate hard partitions (they require the same chipset (such
as sx1000 or sx2000).
Memory Configuration
Memory ConfigurationMemory Configuration
Memory Configuration The memory DIMMs used in the HP Integrity rx8640 Server are sold in pairs and are custom designed by
HP. Each DIMM contains DDR II memory chips qualified to run at 267/533 MHz, with full ECC
protection. DIMM sizes of 1 GB, 2 GB, 4 GB and 8 GB are supported (1-GB DIMMs will be obsoleted
in Feb 2008). HP 9000 rp8400/rp8420/rx8620 memory modules cannot be carried forward to the
rx8640 server. Each HP Integrity rx8640 Server cell board supports up to 16 DIMM slots and 17 GB/s of
peak memory bandwidth.
HP Integrity rx8640 Memory DIMMs
HP Integrity rx8640 Memory DIMMsHP Integrity rx8640 Memory DIMMs
HP Integrity rx8640 Memory DIMMs
Pair Size
Pair SizePair Size
Pair Size (Product) rx8640 Product Number
rx8640 Product Numberrx8640 Product Number
rx8640 Product Number HP Integrity rx8640 Server
HP Integrity rx8640 ServerHP Integrity rx8640 Server
HP Integrity rx8640 Server
Maximum Capacity Using 1 DIMM Size
Maximum Capacity Using 1 DIMM SizeMaximum Capacity Using 1 DIMM Size
Maximum Capacity Using 1 DIMM Size
DIMM Size
DIMM SizeDIMM Size
DIMM Size
2 GB AB453A 64 GB 1024 MB
4 GB AB454A 128 GB 2048 MB
8 GB AB455A 128 GB 4096 MB
16 GB AB456A 256 GB 8192 MB
Memory Loading Rules
Memory Loading RulesMemory Loading Rules
Memory Loading Rules Memory must be installed in pairs (2 DIMMs of equal density)
DIMM pairs must be loaded in slot order
Memory is available in three densities: 2 GB (2×1024MB), 4 GB (2×2048MB), 8 GB
(2×4096MB) and 16 GB (2×8192MB).
Minimum memory is 2 GB per cell
Maximum memory per system is 512 GB-using 32 8 GB pairs per system
Larger DIMMs must be loaded first across a cell, followed by progressively smaller DIMM sizes.
On each cell board, Memory pairs must be installed in the following order:
(0A, 0B), (1A, 1B), (2A, 2B), (3A, 3B), (4A, 4B), (5A, 5B), (6A, 6B), (7A, 7B)
DIMM mixing other than recommended configurations is supported as long as the memory
loading rules are followed.
rx8640 Recommended Memory Configurations
rx8640 Recommended Memory Configurationsrx8640 Recommended Memory Configurations
rx8640 Recommended Memory Configurations
QuickSpecs
HP Integrity rx8640 Server
HP Integrity rx8640 ServerHP Integrity rx8640 Server
HP Integrity rx8640 Server
Configuration
DA - 12471 Worldwide — Version 14 — November 8, 2007 Page 8