HP ProLiant AMD-based 100-series G7 servers

Processor technology
The HP G7 AMD-based 100-series servers use the AMD Opteron 6100 series eight- and twelve-core
processors, allowing up to 24 cores in a 2-processor, 1 U platform. These processors are based on
AMD's 45 nanometer (nm) process and have a core standard wattage of 75W Average CPU Power
(ACP). In addition, these processors use Direct Connect™ architecture 2.0, HyperTransport™ 3.0, HT
Assist™, and 8x ECC error correction. The 6100 series processors fit into the G34 socket
architecture. They feature DDR3 memory, four 64 bit memory channels per processor, the AMD
SR5670 chipset, and quad HyperTransport (HT) links as shown in Figure 1. The processors operate at
speeds of up to 2.4 GHz with eight cores and 2.3 GHz with twelve cores, and share a 12 MB L3
cache. The AMD Opteron 6100 series processor includes performance-optimized power and thermal
controls. See the Power and thermal technologies
section for more information.
Figure 1. The DL165 G7 server architecture using the AMD 6100 series processor and chipset
Direct Connect architecture 2.0
Unlike front-side bus architecture, Direct Connect integrates the memory controller into the processor
and directly connects CPUs to the I/O subsystem and other processors (Figure 2). Direct Connect
architecture uses direct communication HyperTransport links between CPUs, between CPU and I/O,
and between CPU and memory. Direct Connect architecture currently scales up to 12 cores to provide
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