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Troubleshooting Understanding the Diag LEDs Table 11-1 Diag LED Patterns (R = Red, Y = Yellow, G = Green, q = Off) Pattern Description Possible Solutionsa qqYR 5 V standby power circuit error. 1. Replace the power supply as described in "System Memory" on page 159. 2. Replace the system board as described in "System Board" on page 186. a. Possible solutions are listed in order of ease and probability. Follow the solutions in sequence in sequence. Remember to ﬂash the BIOS and ﬁrmware before attempting any of the solutions in the table. Chapter 11 223

Section	Page
1 System Overview	11
Overview	12
HP x4000 Workstation Feature Set	13
Internal and External Components	18
HP x4000 Control Panel	21
Internal Features	23
Documentation	24
HP Web Site Contents	24
2 System Board	25
Overview	26
System Board Component Layout	27
System Board Switches	28
Architectural Diagram	28
System Chipset	30
Memory Controller Hub (Intel 860)	30
PCI 64-bit Hub (Intel 82086)	30
Interface Controller Hub (Intel 82801BA)	30
Super I/O Chip (National PC87366)	31
LAN Chip (Intel 82550)	31
SCSI Controller Chip (LSI SYM43C1010R)	32
Audio Chip (Analog Devices AD 1885)	33
Hardware Management Controller Chips	33
Clocks	34
Expansion Card Slots	35
Peripheral Component Interconnect (PCI) Slots	35
Accelerated Graphics Port (AGP) Slot	36
3 System Memory and Processors	37
Overview	38
System Memory	39
Rambus	39
Eight-RIMM MEC	39
Processor	41
4 System BIOS and Resources	43
Overview	44
System BIOS	45
BIOS Identification	45
Updating the System BIOS and Firmware	46
Restoring BIOS Default Settings	46
Clearing the CMOS	46
Recovering the BIOS from the Boot Block	47
HP Setup Program	49
Starting the HP Setup Program	49
Main Menu	51
Advanced Menu	52
Security Menu	55
IPMI Menu	56
Power Menu	57
Boot Menu	57
BIOS Beep Codes	59
System Resources	60
PCI IRQ Lines	60
IRQ Routing	61
Interrupt Controllers	63
System Memory Map	65
I/O Port Map (I/O Addresses Used by the System	65
DMA Channel Controllers	67
5 Hardware Management (Monitoring and Reporting)	69
Overview	70
General Firmware Information	71
Date/Time Initialization	71
SEEPROM Organization	71
Hardware Monitoring	72
Built-in Self Test (BIST)	72
Sensor Scan	72
Fan Control	75
Sense Power State	75
Chassis Intrusion	76
Pre-boot Device Test	76
PCI/AGP Power	76
Reporting	77
Event Logging	77
Sensor Report Using IPMI	77
System Event Log (SEL)	77
Power Status LED	77
Diag LEDs	78
Firmware Failure Handling	78
BIOS is Running OK	78
IPMI Platform Event Trap	78
Security	79
Lock Status Panel	79
BIOS Configuration Tokens	79
6 Power Specifications	81
Power Delivery	82
Power Supply	86
Power Supply Specifications	87
Resetting the Power Supply	88
Power Consumption and Cooling	88
Power Saving and Ergonometry	89
Using Power Management	89
Power Saving Modes and Resume Events	90
7 Connector Pin-Outs	93
Expansion Slots	94
Peripheral Component Interconnect (PCI) Slots	94
Accelerated Graphics Port (AGP) Slot	102
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
Universal Serial Bus Connectors	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
8 Mechanical Specifications	121
System Fans and Air Flow	122
Physical Specifications	123
Environmental Specifications	124
9 Hardware Components	125
Overview	126
Graphics Cards	127
Matrox Millennium G450 Graphics Card	127
nVIDIA Quadro2 MXR	131
nVIDIA Quadro2 Pro	132
Fire GL2 and Fire GL4	133
Mass Storage Devices	136
Flexible Disk Drives	136
Hard Disk Drives	136
Optical Drives	140
Rear Panel Connectors	144
10 Installing or Replacing Parts and Accessories	145
Overview	146
Cover and FrontBezel	147
Removing the Left Side Cover	147
Removing the Front Bezel	149
Replacing the Cover and Front Bezel	150
Hard Disk Drive Cage	151
Opening the Hard Disk Drive Cage	151
Closing and Securing the Hard Disk Drive Cage	152
Chassis Beam Assembly	154
Removing the Chassis Beam Assembly	154
Installing the Chassis Beam Assembly	155
Memory Expander Card (MEC)	157
Removing the MEC	157
Installing the MEC	158
System Memory	159
Upgrading Memory on the 8-RIMM MEC	159
Installing Memory	161
Graphics Card	164
Removing a Graphics Card	164
Installing a Graphics Card	165
SCSI Hard Drive	169
Removing a SCSI Hard Disk Drive	170
Setting SCSI IDs for a New Hard Disk Drive	171
Installing a SCSI Hard Disk Drive	172
CD-ROM, CD-RW or DVD	173
Determining IDE Connections	174
Removing a CD-ROM, CD-RW, or DVD	174
Installing a CD-ROM, CD-RW or DVD	175
Load the Software Applications for Your CD-RW	176
Processor	177
Removing a Processor	177
Installing a Processor	179
Updating Your Operating System	181
Floppy Disk Drive	182
Removing the Floppy Disk Drive	182
Installing the Floppy Disk Drive	183
Power Supply	184
Removing the Power Supply Unit	184
Installing the Power Supply Unit	185
System Board	186
Removing the System Board	186
Installing the New System Board	188
System Board Switches	191
System Fan	192
Removing the System Fan	192
Installing the System Fan	193
Fan and Speaker Assembly	194
Removing the Fan and Speaker Assembly	194
Installing the Fan and Speaker Assembly	195
Hard Disk Drive Fan	197
Removing the Hard Disk Drive Fan	197
Installing the Hard Disk Drive Fan	198
Battery	199
Replacing the System Battery	199
System Board Diagram	201
11 Troubleshooting	203
Overview	204
Solving Hardware Problems	205
Workstation Does Not Start Properly	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
Hard Disk Drive Activity LED Doesn’t Work	209
CD-ROM, DVD or CD-RW Drive Doesn’t Work	209
CD-RW Won’t Allow Recording	209
DVD Drive Doesn’t Play DVD Video	210
You Forgot Your Password	210
Understanding the Diag LEDs	212
Setting and Removing System Passwords	224
Setting Passwords	224
Removing Passwords	224
Using e-Diag Tools for Hardware Problems	225
Starting e-Diag Tools from the Hard Drive’s Utility Partition (Recommended Method)	225
Starting e-Diag Tools from the	226
Recovering or Reconfiguring Windows 2000 or Windows NT	227
Preparing to Recover Windows NT or Windows 2000	228
Performing a Full Recovery of Windows NT or Windows 2000	229
12 Contacting Support	231
Online Support for Troubleshooting	232
Documentation Set Overview	233
Hewlett-Packard Support and Information Services	234
Collecting Information Before Contacting HP Support	234