HP x4000 Technical Reference Manual page 14

System Overview
HP x4000 Workstation Feature Set
Feature
Rambus Memory on
Memory Expander
Card (MEC)
P64H Hub to 64-bit
PCI module
Interface Controller
Hub
BIOS
Accessory Card Slots
LAN Port
On-board SCSI
Controller Chip
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Description
Plugs into the system board and supports:
• 400 MHz operation delivering up to 3.2 GB/s memory
bandwidth using two expansion channels operating in lock step
• Up to 8 PC800 RIMMs (see "Upgrading Memory on the
8-RIMM MEC" on page 159 for memory loading instructions)
Supports 64-bit, 66 MHz PCI bus containing:
• Two 64-bit, Two PCI connectors 66 MHz PCI connectors
• On-board SCSI controller
ICH2 Hublink to I/O controller modules supports:
• Three 32-bit, 33 MHz PCI connectors
• Two external USB ports
• Two ATA 100 IDE controllers
• One firmware hub interface
• One AC97 audio interface
Based on Phoenix core, including 4 MB flash.
• One AGP Pro 110 4X connector
• Three 5V, 33 MHz, 32-bit Peripheral Component Interconnect
(PCI) connectors
• Two 3.3V, 66 MHz, 64-bit PCI connectors
The Intel 82550 10/100BaseT LAN port interfaces to the system
via the 33 MHz, 32-bit PCI bus. Wake on LAN is supported.
The LSI SYM43C1010R has two Ultra 160 SCSI controllers to
support two internal wide connectors:
• Ribbon cable up to SCSI drives
• Ribbon cable to external SCSI connector
Chapter 1