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Appendix B - SCSI Backplane Boards B-7
Dual-Channel Configuration
In a dual-channel configuration, channel 1 supports the devices in slots 0 to 2, and
channel 2 supports the devices in slots 3 to 6. Set the channel configuration
switches to “Split” and set the terminators accordingly (Table B-3) to achieve a
dual-channel configuration. See Figure B-1 for the locations of the switches and
terminators.
Connect SCSI
channel 2 to
slots 3 to 6
Connect to external
SCSI devices
Connect SCSI
channel 1 to
slots 0 to 2
Connect to Wide
SCSI connector on
the system board or
SCSI controller board
Figure B-6 Dual-Channel Configuration
Table B-3 lists the terminator settings for the dual-channel configuration.
Table B-3 Terminator Settings for Dual-Channel Configuration
Terminator Setting
With External Device
RA1, RA2, RA3
RA4, RA5, RA6
Removed
Installed
Without External Device
RA1, RA2, RA3
RA4, RA5, RA6
Installed
Installed
- AcerAltos 19000 1
- User’s Guide 1
- IMPORTANT SAFETY INSTRUCTIONS 4
- FCC Class A Radio Frequency 6
- Interference Statement 6
- Table of Contents 7
- AcerAltos 19000 User’s Guidex 10
- List of Figures 12
- List of Tables 15
- Conventions 16
- 1.1 Features 17
- Bus Controller 18
- 1.1.2 System Architecture 19
- System Bus 20
- PCI and EISA Buses 20
- 1.1.3 SCSI Subsystem 21
- 1.1.4 Server Management 21
- 1.1.6 Security 22
- 1.2 External Configuration 23
- Front Panel Features 24
- Power Switch 25
- LED Indicators 26
- LCD Display Screen 26
- Table 1-2 LCD Messages 27
- RDM Button 28
- 1.2.2 Rear Panel 29
- 2.1 Pre-installation 31
- 2.2 Basic Connections 35
- 2.2.2 Mouse 36
- 2.2.3 VGA Monitor 37
- 2.3 System Startup 38
- LCD messages 39
- 2.4 Power-on Problems 40
- Chapter 3 System Housing 43
- Left Panel 44
- Right Panel 45
- ° angle 47
- Chapter 3 - System Housing 49
- 3.3 SCSI Backplane Boards 50
- 3.4 Front Panel Board 51
- 3.5 Power Subsystem 52
- 3.6 ESD Precautions 52
- Chapter 4 System Board 57
- 4.1.1 Layout 58
- 4.1.2 Jumpers and Connectors 59
- * Default setting 60
- Voltage ID Settings 61
- 1 = Open 62
- Table 4-3 Connector Functions 63
- Chapter 4 - System Board 4-9 65
- 4.2 Memory Board 66
- 4.2.2 Rules for Adding Memory 67
- 4.2.3 Memory Configurations 68
- 4.2.4 Installing a SIMM 69
- 4.2.5 Removing a SIMM 70
- Chapter 4 - System Board 4-15 71
- Chapter 4 - System Board 4-17 73
- Chapter 5 BIOS Utility 75
- 5.1 Entering Setup 76
- Chapter 5 - BIOS Utility 77
- 5.2.1 Date and Time 78
- • Year 00 to 99 79
- • Second 00 to 59 79
- 5.2.2 Diskette Drives 80
- 5.2.3 Hard Disk Drives 81
- Selecting the “User” Option 82
- 5.2.4 System Memory 83
- 5.2.5 Math Coprocessor 83
- 5.2.6 Video Display 83
- 1 or 2 stop bits 84
- 7- or 8-bit data word 84
- 5.2.8 Enhanced IDE Features 85
- 5.2.10 Num Lock After Boot 85
- 5.2.11 Memory Test 86
- 5.2.13 Fast Boot Mode 86
- 5.3.1 Shadow RAM 88
- 5.3.3 Memory at 15MB-16MB 89
- 5.4 System Security Setup 90
- Serial Port 1 Base Address 92
- Serial Port 2 Base Address 92
- Parallel Port Base Address 93
- Operation Mode 94
- ECP DMA Channel 94
- 5.4.4 Setup Password 95
- 5.4.5 Power On Password 96
- 5.5.1 PCI IRQ Setting 97
- 5.5.2 VGA Palette Snoop 98
- 5.5.3 Onboard SCSI 98
- AcerAltos 19000 User’s Guide 100
- 5.6.1 IRQ/DMA 101
- 5.6.2 Expansion ROM Region 101
- 5.6.3 I/O Region 101
- 5.6.4 Local Memory Region 101
- 5.9 Leaving Setup 104
- Chapter 6 Utilities 105
- Functions 107
- Making Menu Selections 108
- Getting Help 109
- 6.3.1 Starting the ECU 110
- Computer 111
- Main Menu Selections 112
- Chapter 6 - Utilities 113
- Step 2: Add or remove boards 114
- Step 5: Save and Exit 117
- Figure 6-8 Save and Exit 120
- Adding Boards 121
- Removing a Board 123
- 6.3.5 Configuring Memory 124
- Advanced Menus 128
- Lock/unlock boards 128
- Set verification mode menu 129
- Maintain SCI files menu 129
- 7.1.1 Default Values 131
- Utility! 133
- Host Adapter SCSI ID 136
- SCSI Parity Checking 137
- Boot Device Options 139
- SCSI Device Configuration 140
- ↓) to select a value 141
- Initiate Sync Negotiation 142
- Maximum Sync Transfer Rate 142
- Enable Disconnection 143
- Initiate Wide Negotiation 144
- Send Start Unit Command 144
- Host Adapter BIOS 146
- Multiple Lun Support 148
- 7.2.2 SCSI Disk Utilities 150
- Format Disk 151
- Verify Disk Media 151
- 7.4.1 Extended Translation 153
- 7.4.2 The DOS 1 GByte Limit 153
- With MS-DOS 5.0 and Above 154
- Using Fdisk 154
- 7.6 BIOS Startup Messages 156
- Appendix A System Resources 163
- A.2 I/O Address Map 164
- A.3 Interrupt Channels 166
- Parameter Default Setting 168
- Table A-8 System Security 170
- B.1 Features 173
- B.2 Layout 174
- B.3 Jumper Settings 175
- B.4 Hard Disk ID Feature 176
- B.5 Channel Configuration 177
- Dual-Channel Configuration 179
- Unlock/Power Off 180
- 4. Pull the drive tray out 181
- Power Cable 182
- Drive ID Cable 182
- Wide SCSI Cable 182
- the indicator to light up 184
- Appendix C Power Subsystem 187
- C.1 Power Supply Upgrade 188
- C.4 Power Cable Connections 195
- System Board 196
- Power Subsystem 196
- Power Subs 197
- 8. Unpack the battery box 201
- Removing a Battery Box 204
- Release Note 210
- RDM LED Location 211
- RDM BIOS Utility 212
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