HP ProLiant DL585 G5/G6 server technology

DL585 G5 processor architecture
The DL585 G5 is a powerful, 4U enterprise server incorporating technologies that extend the
capabilities of industry-standard x86 computing. This high performance server can run both 32-bit
and 64-bit applications simultaneously with no performance penalty (when using an operating system
that supports 64-bit extensions). This is possible because the AMD64 instruction set is a super-set
containing the x86 instruction set architecture. The DL585 G5 architecture includes the following
essential features:
 Support for up to four quad-core AMD Opteron 8300-series processors
 NVIDIA nForce Professional 2200 and 2050 chipsets
 Dual Dynamic Power Management support
 Two 100MHz PCI-X slots
 Four PCI Express (PCIe) x4 slots
 Three PCIe x8 slots
 Two embedded 10/100/1000 Ethernet ports with iSCSI and Receive Side Scaling (RSS)
 HP Integrated Lights-Out (iLO) 2 management
Quad-core AMD Opteron processors
The AMD 8300-series quad-core processor includes four separate microprocessor cores on one
physical die (Figure 1). AMD quad-core technology delivers high performance and reduced latency
for multi-threaded and multi-tasking environments. Quad-core processors provide two primary
benefits:
 Enhanced performance per watt—significant performance increase while operating within the same
power and thermal envelopes as dual-core processors
 Incr
eased virtualization—on-die memory controller providing optimum performance in virtual
machine (VM) environments
Figure 1. AMD Opteron 8300 series quad-core architecture
Incr
easing the number of processors
available to the operating system makes it
possible to execute multiple threads more
efficiently. In addition, a quad-core
processor uses less power than two
(equivalent) dual-core processors which
reduces power use and heat production.
The DL585 G5 server supports the AMD
Opteron 8300 processor’s Dual Dynamic
Power Management (DDPM) capabilities.
DDPM architecture separates the core and
memory controller voltage planes. The HP
ProLiant DL585 G5 features a split-plane
motherboard that separates the voltage
feeds to the CPU core and the DDR2
memory controller. This split-plane design
provides peak operating efficiency and
increased performance.
As an alternative to traditional front-side
bus technology, AMD Opteron processors
use Direct Connect Architecture and
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