HP Compaq dc7600 MT Technical Reference Guide

5-36 www.hp.com Technical Reference Guide
Input/Output Interfaces
5.9 Network Interface Controller
These systems provide 10/100/1000 Mbps network support through a Broadcom BCM5752
network interface controller (NIC), a PHY component, and a RJ-45 jack with integral status
LEDs. The 82562-equivalent controller integrated into the 82801 ICH component is not used
(disabled) in these systems. (Figure 5-14). The support firmware for the BCM5752 component
is contained in the system (BIOS) ROM. The NIC can operate in half- or full-duplex modes, and
provides auto-negotiation of both mode and speed. Half-duplex operation features an
Intel-proprietary collision reduction mechanism while full-duplex operation follows the IEEE
802.3x flow control specification.
Figure 5 14. Network Interface Controller Block Diagram
The Network Interface Controller includes the following features:
■
VLAN tagging with Windows 2000/XP, and Linux.
■
Multiple VLAN support with Windows 2000/XP.
■
Power management support for ACPI 1.1, PXE 2.0, WOL, ASF 1.0, IPMI
■
Cisco Etherchannel support
■
Link and Activity LED indicator drivers
The controller features high and low priority queues and provides priority-packet processing for
networks that can support that feature. The controller's micro-machine processes transmit and
receive frames independently and concurrently. Receive runt (under-sized) frames are not passed
on as faulty data but discarded by the controller, which also directly handles such errors as
collision detection or data under-run.
The NIC uses 3.3 VDC auxiliary power, which allows the controller to support Wake-On-LAN
(WOL) and Alert-On-LAN (AOL) functions while the main system is powered down.
✎
For the features in the following paragraphs to function as described, the system unit must be
plugged into a live AC outlet. Controlling unit power through a switchable power strip will, with
the strip turned off, disable any wake, alert, or power mangement functionality.
Broadcom
LAN I/F
Green LED
NIC
BCM5752
RJ-45
Connector
Yellow LED
Tx/Rx Data
Tx/Rx Data
LED
Function
Green
Ye ll o w
Activity/Li nk. Indicates network activity and link pulse reception.
Speed. Indicates link detection 100Mb/s mode.

HP Compaq dc7600 MT Specifications

General

Memory	Up to 4 GB DDR2 SDRAM
Audio	Integrated High Definition Audio
Expansion Slots	1 PCI Express x16, 1 PCI Express x1, 2 PCI
Form Factor	Microtower
Processor	Intel Pentium 4 or Intel Celeron D
Chipset	Intel 945G Express
Hard Drive	40 GB to 160GB SATA
Optical Drive	DVD-ROM, DVD+/-RW
Graphics	Integrated Intel Graphics Media Accelerator 950
Networking	Integrated 10/100/1000 Ethernet
Ports	Serial, parallel, VGA, audio in/out
Operating System	Windows XP Professional, Windows XP Home
USB Ports	8 USB 2.0 (2 front, 6 rear)