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4–2 359782-002 Service Reference Guide, dx2000 uT
Ultra ATA Drive Guidelines and Features
Single-Drive Cable
Two-Drive Cable
On a two-drive cable, the Drive/Device 0 connector is always the farthest one from the system
board connector and the Drive/Device 1 connector is always the closest to the system board
connector.
✎
Some cables may be labeled “Drive 0” instead of “Device 0” and “Drive 1” instead of
“Device 1”.
4.3 Drive Installation Guidelines
Most computer system boards have two ATA (IDE) controller channels with a dedicated
connector for each controller. One controller is designated as the primary and the other as the
secondary controller.
Each of the two controllers can have up to two devices attached to it. Each computer system may
therefore have a maximum of four ATA/ATAPI drives. All drives are connected to these
controllers using an industry-standard 40-pin, 80-conductor cable.
✎
The industry standard 1.44 MB diskette drive has its own separate channel and is not included as
a part of the maximum four drives.
Any drive attached to a controller must have a drive designation. If only a single drive is
connected to a controller and its jumper is in the cable-select position, it is designated as the
Master Drive (Drive/Device 0) by its attachment to the Drive/Device 0 cable position. If two
cable-selected drives are connected to a single controller, one will be designated by its
attachment to the cable as the Master (Drive/Device 0) and the other as Slave (Drive/Device 1).
For optimal performance of a computer system, all drives need to be attached to the ATA
controllers in a specified sequence. This sequence is determined by the device class of the drives
and by specific attach sequence rules.
System
Board
Device 0
(master)
Black
Face
Blue
Face
System
Board
Device 1
(slave)
Device 0
(master)
Black
Face
Blue
Face
Gray
Face
- Personal Computers 1
- 2st Edition 1
- Service Reference Guide 3
- Contents 5
- 1.1 Microsoft Windows XP 9
- 1.2 Converting to NTFS 10
- 1.3 HP Software 10
- 2.1 Power-On Self-Test (POST) 11
- 2.2 Computer Setup Utilities 12
- 2.2.2 Computer Setup Menu 14
- 2.4 Restoring the Software 18
- 2.3 Protecting the Software 18
- Desktop Management 19
- 3.2.1 FailSafe Boot Block ROM 20
- 3.2.2 Dual-State Power Button 20
- 3.2.3 Power Management 21
- 3.2.4 World Wide Web Site 21
- 3.3 Security 22
- Entering a Power-On Password 23
- Entering a Setup Password 23
- Clearing Passwords 25
- 4.1 Ultra ATA Jumpers 27
- 4.2 Ultra ATA Cables 27
- Single-Drive Cable 28
- Two-Drive Cable 28
- 4.3.1 Device Classes 29
- 4.4 SMART 32
- 4.5 Drive Capacities 33
- Disassembly Preparation 35
- 5.2.1 Generating Static 36
- 5.2.4 Grounding the Work Area 37
- 5.3 Routine Care 38
- 5.3.3 Cleaning the Keyboard 39
- 5.3.4 Cleaning the Monitor 39
- 5.3.5 Cleaning the Mouse 39
- 5.4 Service Considerations 40
- 5.4.4 Cables and Connectors 41
- 5.4.5 Hard Drives 41
- Microtower (µT) Chassis 43
- 6.2 Access Panel 44
- 6.3 Front Bezel 45
- 6.4 Front Drive Bezels 46
- 6.4.2 Diskette Drive Bezel 47
- 6.5 Memory 48
- 6.6 Expansion Card 50
- 6.7 Drives 51
- 6.8 Front USB Device 56
- 6.9 Power Switch Assembly 57
- 6.10 Speaker 58
- 6.11 System Fan 59
- 6.12 Processor and Heatsink 60
- 6.13 System Board 61
- 6.14 Battery 62
- 6.15 Power Supply 64
- Connector Pin Assignments 65
- Parallel Interface 66
- Microphone 66
- Headphone 67
- Line-In Audio 67
- Line-Out Audio 67
- 20-Pin Power 68
- 4-Pin Power (for CPU) 68
- Power Cord Set Requirements 69
- Country-Specific Requirements 70
- POST Error Messages 71
- Preliminary Checklist 75
- Solving Minor Problems 76
- Solving Power Supply Problems 78
- Solving Diskette Problems 79
- Solving Hard Drive Problems 80
- Solving Display Problems 83
- Solving Audio Problems 86
- Solving Printer Problems 88
- Solving Keyboard Problems 89
- Solving Network Problems 92
- Solving Memory Problems 94
- Solving Processor Problems 95
- Solving Drive Key Problems 97
- DIMM Sockets 102
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