Specifications
Table Of Contents
- SGI™ 1400 Server Family Maintenance and Upgrades Guide
- List of Figures
- List of Tables
- About This Guide
- Working Inside the System
- Tools and Supplies Needed
- Safety: Before You Remove the Access Cover
- Warnings and Cautions
- Removing the System Access Cover
- Installing the Access Cover
- Working in the Subchassis and Electronics Bay
- Installing PCI Boards
- Removing a PCI option Board
- Removing the Front Panel Board
- Installing the Front Panel Board
- Removing the Diskette Drive
- Installing the Diskette Drive
- Peripheral Drives
- System Fans
- The Power Share Board
- Upgrading Baseboard Components
- SGI 1400 Server SCSI Backplane Installation
- Technical Reference
- Baseboard Connectors
- Main Power Connector
- Auxiliary Power
- Diskette Drive
- Front Panel Connector
- The SMM Connector
- The IPMB Connector
- VGA Video Port Connector
- Keyboard and Mouse
- Parallel Port
- Serial Ports A and B
- Universal Serial Bus
- Narrow SCSI Connector
- Wide SCSI Connector
- Internal IDE Connector
- The Hard Drive LED Connector
- ISA Connector Pinouts
- The PCI Connectors
- Baseboard Jumpers
- System I/O Addresses
- Memory Map Address Range
- Interrupts
- Video Modes
- Baseboard Connectors
- Equipment Log and Configuration Worksheets
- Environmental Specifications
- Chassis Warnings and Safety
- Index
108
Chapter 4: Technical Reference
Memory Map Address Range
Table 4-22 lists the memory map address ranges and the functions they support.
0678h - 067Ah Parallel Port (ECP)
0778h - 077Ah Parallel Port (ECP)
07BCh - 07BEh Parallel Port (ECP)
0CA0 - CA3h BMC Registers
0CF8h PCI CONFIG_ADDRESS
Register
Located in 450NX
0CF9h NBX Turbo and Reset
control
PIIX4E
0CFCh PCI CONFIG_DATA
Register
Located in 450NX
46E8h Video Display Controller
Table 4-22 Memory Map Address Range
Address Range (hex) Amount Function
0 to 07FFFFh 640 KB DOS region, base system memory
0A0000h to 0BFFFFh 128 KB Video or SMM memory
0C0000h and 0DFFFFh 128 KB Add-in board BIOS and buffer area
0E0000h to 0FFFFFh 128 KB System BIOS
0E0000h to 0EFFFFh 2 MB Extended system BIOS
FC000000h to FFFFFFFFh 64 MB PCI memory space
Table 4-21 (continued) System I/O Addresses
Address(es) Resource Device Notes