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Troubleshooting
Understanding the Diag LEDs
Chapter 11222
●YYR The hard disk drive fan is not
functioning. This fan is located
behind the hard disk drive cage.
The sensor reads the state of the fan
that is connected to the “hard disk
drive fan” power connector on the
system board, regardless of which fan
is connected.
1. Reseat the fan’s power cable on the
system board.
2. Verify that the cabel leads to the
hard disk drive fan and replace the
fan as in “Hard Disk Drive Fan” on
page 197.
3. If you cannot verify that the cable
leads to the hard disk drive fan,
replace both the PCI and hard disk
drive fans as described in “Fan and
Speaker Assembly” on page 194
and in “Hard Disk Drive Fan” on
page 197.
●Y●R The turbo cooler fan for processor 1 is
not functioning.
1. Reseat the fan’s power cable to the
system board.
2. Replace the turbocooler as
described in “Processor” on page
177.
3. Replace the system board as
described in “System Board” on
page 186.
●●RY The rear system fan is not
functioning.
1. Reseat the fan’s power cable to the
system board.
2. Replace the fan.
3. Replace the system board as
described in “System Board” on
page 186.
Table 11-1 Diag LED Patterns (R = Red, Y = Yellow, G = Green, ● = Off)
Pattern Description
Possible Solutions
a
- Technical Reference Manual 1
- HP x4000 Workstation 1
- Contents 10
- 1 System Overview 11
- Overview 12
- System Overview 19
- Chapter 1 19 19
- Chapter 120 20
- Figure 1-3 Rear View 20
- HP x4000 Control Panel 21
- Internal Features 23
- Documentation 24
- 2 System Board 25
- System Board Component Layout 27
- Architectural Diagram 28
- System Chipset 30
- LAN Chip (Intel 82550) 31
- Expansion Card Slots 35
- Chapter 3 37 37
- System Memory and Processors 42
- Chapter 342 42
- 4 System BIOS and Resources 43
- System BIOS 45
- Clearing the CMOS 46
- 3 to OFF 47
- HP Setup Program 49
- Main Menu 51
- Advanced Menu 52
- Enabled if 53
- Auto lets the BIOS or a 54
- Enabled lets you set each 54
- Security Menu 55
- IPMI Menu 56
- Power Menu 57
- Boot Menu 57
- BIOS Beep Codes 59
- System Resources 60
- IRQ Routing 61
- Interrupt Controllers 63
- System Memory Map 65
- DMA Channel Controllers 67
- System BIOS and Resources 68
- Chapter 468 68
- 5 Hardware Management 69
- (Monitoring and Reporting) 69
- General Firmware Information 71
- Hardware Monitoring 72
- Fan Control 75
- Sense Power State 75
- Chassis Intrusion 76
- Pre-boot Device Test 76
- PCI/AGP Power 76
- Reporting 77
- Diag LEDs 78
- Firmware Failure Handling 78
- BIOS is Running OK 78
- IPMI Platform Event Trap 78
- Security 79
- Chapter 580 80
- 6 Power Specifications 81
- Power Delivery 82
- Power Supply Specifications 87
- Resetting the Power Supply 88
- Power Consumption and Cooling 88
- Power Saving and Ergonometry 89
- Power Options 90
- Power Specifications 91
- Chapter 6 91 91
- Chapter 692 92
- 7 Connector Pin-Outs 93
- Expansion Slots 94
- System Board Connectors 105
- Floppy Disk Drive Connector 106
- IDE/ATA 100 Connectors 107
- SCSI Connectors 109
- Parallel Port Connector 111
- Serial Port Connectors 112
- Keyboard and Mouse Connector 113
- Front Panel Connector 114
- ATX Power Connector 115
- LAN Connector 116
- Audio Connector 116
- CD Audio In Connector 117
- Microphone Connector 117
- System Speaker Connector 118
- Processor Fan Connectors 118
- Chassis Fan Connectors 118
- Chassis Intrusion Connector 119
- Connector Pin-Outs 120
- Chapter 7120 120
- 8 Mechanical Specifications 121
- System Fans and Air Flow 122
- Physical Specifications 123
- Environmental Specifications 124
- 9 Hardware Components 125
- Graphics Cards 127
- Actual graphics 131
- Fire GL2 and Fire GL4 133
- Mass Storage Devices 136
- Hardware Components 138
- Chapter 9138 138
- Optical Drives 140
- Chapter 9 143 143
- Description 143
- Rear Panel Connectors 144
- Chapter 10 143 145
- Cover and Front Bezel 147
- Chapter 10146 148
- Removing the Front Bezel 149
- Hard Disk Drive Cage 151
- Chassis Beam Assembly 154
- Retaining clip 155
- Graphics Card 156
- Memory Expander Card (MEC) 157
- Installing the MEC 158
- System Memory 159
- Chapter 10158 160
- Installing Memory 161
- Installing a Graphics Card 165
- Chassis Beam 168
- Assembly 168
- Retainer Beam 168
- SCSI Hard Drive 169
- CD-ROM, CD-RW or DVD 173
- Determining IDE Connections 174
- Easy CD Creator 176
- Direct CD 176
- Yes to restart your 176
- Processor 177
- Installing a Processor 179
- Floppy Disk Drive 182
- Power Supply 184
- System Board 186
- Align the hooks with the 188
- System Board Switches 191
- System Fan 192
- Installing the System Fan 193
- Fan and Speaker Assembly 194
- Remove this 195
- Press these 195
- Hard Disk Drive Fan 197
- Replacing the System Battery 199
- System Board Diagram 201
- Chapter 10200 202
- 11 Troubleshooting 203
- Solving Hardware Problems 205
- Keyboard Doesn’t Work 206
- Monitor Doesn’t Work 206
- Mouse Doesn’t Work 207
- Audio Doesn’t Work 207
- Power LED is Flashing 207
- Hard Disk Drive Problems 208
- CD-RW Won’t Allow Recording 209
- You Forgot Your Password 210
- ESC when prompted to see the 211
- Understanding the Diag LEDs 212
- OFF. Restart the 217
- Setting Passwords 224
- Removing Passwords 224
- Recovery CD-ROM 226
- Windows NT 227
- Windows 2000 229
- 12 Contacting Support 231
- Documentation Set Overview 233
- Services 234
- System icon. The 236
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