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Chapter 7 - SCSISelect Configuration Utility
7-13
In most cases, you can use the maximum value of 20.0. If the SCSI controller is set
not to negotiate for synchronous data transfer (i.e., Initiate Sync Negotiation is set
to no), then the value selected here is the maximum rate that the SCSI controller
accepts from the device during negotiation. (This is standard SCSI protocol.)
Some older SCSI-1 devices do not support
Fast SCSI data transfer rates. This may
cause your computer to operate erratically or
hang if the transfer rate is set too high. Set
Initiate Sync Negotiation to no for these
devices.
Enable Disconnection
This option determines whether the SCSI controller allows a SCSI device to
disconnect from the SCSI bus (sometimes called Disconnect/Reconnect).
Disconnect/Reconnect allows the SCSI controller to perform other operations on
the SCSI bus while the SCSI device is temporarily disconnected.
When set to yes, the SCSI device may disconnect from the SCSI bus. The SCSI
device, however, may choose not to disconnect, even if permitted by the SCSI
controller (this can usually be configured on the SCSI device). When set to no, the
SCSI device is not allowed to disconnect from the SCSI bus. The default setting is
yes.
You should leave Enable Disconnection set to yes if two or more SCSI devices are
connected to the SCSI controller. This optimizes SCSI bus performance. If only
one SCSI device is connected to the SCSI controller, set Enable Disconnection to
no to achieve slightly better performance.
- 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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