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2-6 www.hp.com Technical Reference Guide
System Overview
2.3.1 AMD Processor Support
The models covered in this guide are designed to support the following processor types:
■ AMD Phenom X4 Quad-Core with HyperTransport Technology
■ AMD Phenom X3 Triple-Core with HyperTransport Technology
■ AMD Athlon X2 Dual-Core with HyperTransport Technology
■ AMD Athlon 64 Single-Core with HyperTransport Technology
■ AMD Sempron with HyperTransport Technology
All processors include an integrated DDR2 memory controller and support up to eight gigabytes
of memory. AMD processors are backward-compatible with software written for earlier x86
microprocessors. The processor mounts in a zero-insertion-force (ZIF) AMD AM2+ socket.
CAUTION: These systems can support a processor rated up to 95 watts. Exceeding this limit can result
in system damage and loss of data.
✎
Installation of the processor heatsink is critical in these systems. Refer to the applicable Service
Reference Guide for detailed removal and replacement procedures of the heatsink/fan assembly
and the processor
2.3.2 Chipset
The AMD 780V chipset consists of a RS780C north bridge and an SB700 south bridge. Table 2-2
compares the functions provided by the chipsets.
Table 2-2
Chipset Components and Functionality
Components Function
RS780C Integrated ATI Radeon 3100 graphics controller
PCIe 2.0 x16 graphics interface
HyperTransport bus operating at 800-, 1066-, or 1333-MHz
PCI Express x1
SB700 PCI 2.3 bus I/F
SMBus I/F
SATA I/F
HD audio interface
RTC/CMOS
IRQ controller
Power management logic
USB 1.1/2.0 controllers supporting 12 ports
(these systems provide 8 external, 2 internal)