Service manual
Table Of Contents
- 1 Specifications
- 2 Controls, Ports, and Indicators
- 3 Connector Pinouts
- 4 Maintenance Guidelines
- 5 Error Messages
- 6 Diagnostics
- 7 Maintenance and Troubleshooting
- Preventive Maintenance Procedures
- Troubleshooting
- Password Problems
- General Server Problems
- No lights are on and no error message appears
- Operating system or an application is not responding properly
- Server stops working (hangs)
- Server does not start (boot)
- Power Problems
- Video/Monitor Problems
- Configuration Problems
- Printer/Datacomm Problems
- Keyboard and Mouse Problems
- Flexible Disk Drive Problems
- CD-ROM Problems
- SCSI Problems
- Processor Problems
- Memory Problems
- Embedded Network Interface Card Problems
- Network Interface Card (Installed) Problems
- 8 Parts and Illustrations
- 9 Remove/Replace Procedures
- Introduction
- Covers
- Front Bezels
- Status Panel Assembly
- Mass Storage Devices
- Removing the Flexible Disk Drive
- Replacing the Flexible Disk Drive
- Removing the CD-ROM
- Replacing the CD-ROM
- Removing a Backup Tape Drive
- Replacing a Backup Tape Drive
- Removing a Hard Disk Drive (Tray Mounted)
- Replacing a Hard Disk Drive (Tray Mounted)
- Removing a Hard Disk Drive (Drive Cage Mounted)
- Replacing a Hard Disk Drive (Drive Cage Mounted)
- DIMMs
- Processor
- Accessory Boards
- Power Supply
- Battery
- Chassis Fan
- System Board
- Index
Chapter 3 Connector Pinouts
21
50-Pin Narrow SCSI Port Connector – Accessory Board
Position 25 Position 1
Position 26Position 50
SCSI Port Connector
50-Pin Narrow SCSI Port Connector Pinouts
Pin Number Signal Description Pin Number Signal Description
1-11 Ground 37 Reserved
12 Reserved 38 Termpwr
13 Open 39 Reserved
14 Reserved 40 Ground
15-25 Ground 41 -ATN
26 -DB(0) 42 Ground
27 -DB(1) 43 -BSY
28 -DB(2) 44 -ACK
29 -DB(3) 45 -RST
30 -DB(4) 46 -MSG
31 -DB(5) 47 -SEL
32 -DB(6) 48 -C/D
33 -DB(7) 49 -REQ
34 -DB(P) 50 -I/O
35-36 Ground
LAN Connector – Accessory Board
NOTE The embedded LAN connector does not have the Green and Yellow LEDs on the
connector to indicate any kind of activity. The embedded LAN activity is indicated by the
LAN activity LED on the front panel.
81
GRN LED YEL LED
LAN Connector
LAN Connector Pinouts
Pin Number Signal Description
1 Data signal
2 Not used