3-2 www.hp.com Technical Reference Guide
Processor/Memory Subsystem
3.2 AMD Processors
These systems feature an AMD processor mounted with a heat sink in an AM2+ socket. The
mounting socket allows the processor to be easily changed for upgrading.
3.2.1 AMD Processor Overview
The systems covered in this guide support AMD Phenom, Athlon, and Sempron processors.
Key features of these AMD processors include:
■ Single-, dual-, triple-, or quad-core architecture
■ Dedicated L2 cache for each core
■ Integrated DDR2 memory controller
■ Direct-connect archtitecture for improved performance between the CPU, memory, and I/O
■ HyperTransport™ technology providing up to 4 GB/s (each direction) in mode 1.0 and up to
7.2 GB/s in mode 3.0
Table 3-1 provides a sample listing of processors supported by these systems.
NOTE: Standard (std.) instruction set support includes AMD64, MMX, SSE, SSE2, SSE3, 3DNow!, NX bit,
Cool’n’Quiet
3.2.2 Processor Changing/Upgrading
These systems use the AM2+ zero-insertion-force mounting socket. These systems require that
the processor use an integrated heatsink/fan assembly.
CAUTION: Attachment of the heatsink to the processor is critical on these systems. Improper attachment
of the heatsink will likely result in a thermal condition. Although the system is designed to detect thermal
conditions and automatically shut down, such conditions could still result in damage to the processor
component. Refer to the applicable Service Reference Guide for processor installation instructions.
CAUTION: These systems can only support a processor with a maximum power consumption (also
known as thermal design power (TDP)) of 95 watts. Exceeding this limit can result in system damage and
lost data.
Table 3-1
Supported Processors (partial listing)
AMD
Processor
Core
design
Core
Speed
HT bus
mode
L2
Cache
L3
Cache
Instruction set
support (see note)
Phenom X4 quad 2.30 GHz 3.0 512 KB x4 2048 KB Std. set + SSE4a,
Enhanced 3DNow!
Phenom X3 triple 2.40 GHz 3.0 512 KB x3 2048 KB Std. set + SSE4a,
Enhanced 3DNow!
Athlon 64 X2 dual 2.80 GHz 2.0 1024 KB x2 n/a Std. set + AMD-V
Athlon 64 X2 dual 2.70 GHz 2.0 1024 KB x2 n/a Std. set + AMD-V
Athlon 64 single 2.40 GHz 2.0 1024 KB n/a Std. set
Sempron single 2.30 GHz 1.0 512 KB n/a Std. set
