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

Replacing an Existing Backplane
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Components listed in Figure 3-1 are:
1. Front swing-out subchassis
2. Diskette drive
3. Main chassis
4. Power share board
5. Power supplies
6. Baseboard
7. Lift-out electronics bay
8. 5.25-inch device bay
9. SCSI hard drive bay: backplane mounts to rear of bay
10. Foam cover
11. Foam fan housing
12. Foam fan housing cover
Replacing an Existing Backplane
1. Remove the existing SCSI hard drive(s) from the hot-docking bay.
Note: If the backplane has optional RAID support you must label and return all
drives to their original locations.
2. Undo the three screws that hold the chassis access cover in place and remove it.
3. Label and disconnect all cables attached to the existing backplane.
4. Remove and savethe three screws that attachthe upper edge ofthe backplane tothe
chassis.
5. Slide the backplane out from the three clips that attach its lower end to the chassis.
6. Remove the backplane and set it aside on an antistatic surface or conductive foam
pad.
7. Attach the new backplane to the chassis by first sliding the lower end into the three
clips, then using the three screws you removed earlier to attach the upper end.
8. Reconnect cables (removed in step 3) to the new backplane.