Technologies in HP ProLiant G6 c-Class server blades with AMD Opteron™ processors

core technology delivers high performance and reduced latency for multi-threaded and multi-tasking

environments. All ProLiant G6 server blades with AMD Opteron processors use ServerWorks®

HT-2100 and HT-1000 chipsets.

Figure 3. Ma

jor components of AMD Opteron six-core processors

AMD Opteron processors use Direct Connect architectu

re, which replaces the traditional front side

bus with an integrated memory controller, dedicated memory banks for each processor, and point-to-

point HyperTransport™ technology links between the processors, memory, and I/O chipsets. The

integrated memory controller supports PC2-6400 (DDR2-800) or PC2-5300 (DDR2-667) DIMMs.

AMD Opteron processors feature HyperTransport 3.0 technology (HT3), a parallel, point-to-point

interconnect that provides a direct, scalable bandwidth interconnect between the processors, the I/O

subsystem, and the chipset. However, current chipset technology supports HT3 only for inter-process

communication between processors, and not for I/O data. HT3 is an enhancement of HT1. It

increases the interconnect rate from 2 gigatransfers per second (GT/s) available on previous AMD

processors to a maximum of 4.8 GT/s. HT Assist™ reduces coherence traffic overload on the HT

links, resulting in faster queries in both cache and compute-intensive applications. Each processor

operates at speeds of up to 2.9 GHz, has access to 512 KB of L2 cache memory per core, and

shares a total of 6 MB of L3 cache. HT3 can be activated through the Advanced Options menu of the

RBSU.

AMD Dual Dynamic Power Management™

AMD Opteron processors feature AMD Dual Dynamic Power Management. This functionality powers

the processor core and the voltage planes of the memory controller independently for increased

performance and improved power management.

For additional information about AMD processors, see the HP technology brief titled “AMD Opteron™ and

Intel® Xeon® x86 processors in industry-standard servers”:

http://h20000.www2.hp.com/bc/docs/support/SupportManual/C02731435/C02731435.pdf.