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

104
Chapter 4: Technical Reference
System I/O Addresses
Table 4-21 shows the location in I/O space of all directly I/O-accessible registers.
Table 4-21 System I/O Addresses
Address(es) Resource Device Notes
0000h - 000Fh DMA Controller 1 PIIX4E
0010h - 001Fh DMA Controller 1 PIIX4E Aliased from 0000h - 000Fh
0020h - 0021h Interrupt Controller 1 PIIX4E
0022h - 0023h
0024h - 0025h Interrupt Controller 1 PIIX4E Aliased from 0020h - 0021h
0026h - 0027h
0028h - 0029h Interrupt Controller 1 PIIX4E Aliased from 0020h - 0021h
002Ah - 002Bh
002Ch - 002Dh Interrupt Controller 1 PIIX4E Aliased from 0020h - 0021h
002Eh - 002Fh Super I/O Index and Data
Ports
0030h - 0031h Interrupt Controller 1 PIIX4E Aliased from 0020h - 0021h
0032h - 0033h
0034h - 0035h Interrupt Controller 1 PIIX4E Aliased from 0020h - 0021h
0036h - 0037h
0038h - 0039h Interrupt Controller 1 PIIX4E Aliased from 0020h - 0021h
003Ah - 003Bh
003Ch - 003Dh Interrupt Controller 1 PIIX4E Aliased from 0020h - 0021h
003Eh - 003Fh
0040h - 0043h Programmable Timers PIIX4E
0044h - 004Fh
0050h - 0053h Programmable Timers PIIX4E Aliased from 0040h - 0043h