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
20
68-Pin LVD SCSI Port Connector (Low Voltage Differential)
Pin 1
Pin 68
LVD SCSI Connector (Male)
68-Pin SCSI Port Connector
Shown as pin matching
Pin Number
Signal
Description
Pin
Number
Signal
Description
1 +DB(12) 35 -DB(12)
2 +DB(13) 36 -DB(13)
3 +DB(14) 37 -DB(14)
4 +DB(15) 38 -DB(15)
5 +DB(P1) 39 -DB(P1)
6 +DB(0) 40 -DB(0)
7 +DB(1) 41 -DB(1)
8 +DB(2) 42 -DB(2)
9 +DB(3) 43 -DB(3)
10 +DB(4) 44 -DB(4)
11 +DB(5) 45 -DB(5)
12 +DB(6) 46 -DB(6)
13 +DB(7) 47 -DB(7)
14 +DB(P0) 48 -DB(P0)
15 Ground 49 Ground
16 DiffSens 50 Ground
17 TermPwr 51 TermPwr
18 TermPwr 52 TermPwr
19 Reserved 53 Reserved
20 Ground 54 Ground
21 +ATN 55 -ATN
22 Ground 56 Ground
23 +BSY 57 -BSY
24 +ACK 58 -ACK
25 +RST 59 -RST
26 +MSG 60 -MSG
27 +SEL 61 -SEL
28 +CD 62 -CD
29 +REQ 63 -REQ
30 +IQ 64 -IQ
31 +DB(8) 65 -DB(8)
32 +DB(9) 66 -DB(9)
33 +DB(10) 67 -DB(10)
34 +DB(11) 68 -DB(11)