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HP Xw8400 HP xw8400 Service and Technical Reference Guide - Page 120

Solving power supply problems, Testing power supply

UPC - 883585271085

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Table 5-3 Minor problems (continued) Problem Cause Possible Solution 1. Verify that the unit is plugged into a working AC outlet. 2. Open the access panel, and verify that the power button harness is properly connected to the inline front panel I/O device assembly connector. 3. Verify that the power supply cables are properly connected to the system board. 4. Verify power supply functionality: a. Disconnect AC power. b. Remove all internal power supply cables from the system board. c. Plug in AC power. ● If the power supply fan spins and the BIST* LED lights, then the power supply is good. Replace the system board. ● If the power supply fan does not spin or the BIST* LED does not light, replace the power supply. Solving power supply problems Testing power supply Before replacing the power supply, use the BIST feature to determine if the power supply still works. To test the power supply: 1. Disconnect all internal power supply cables. 2. Plug in AC power. a. If the green BIST LED on the rear of the workstation is lit and the fan is spinning, the power supply is functional. b. If the green BIST LED is not lit or the fan is not spinning, replace the power supply. 110 Chapter 5 System diagnostics and troubleshooting ENWW

Section	Page
Product overview	11
Product features	12
Exploded view	12
Front panel components	13
Rear panel components	14
Serial number and COA label location	14
Product specifications	16
Power supply and cooling	16
Power supply specifications	17
Power consumption and cooling	18
System fans and airflow	20
Resetting the power supply	20
Power cord requirements	20
Environmental specifications	21
PCI card slot power specification	21
Energy Star®	23
Energy Star compliance	23
Hyper-Threading Technology	24
Installing or restoring the operating system	25
Installing the operating system and software	26
Microsoft Windows XP Professional	26
Installing or upgrading device drivers	26
Linux-preinstalled workstations	26
Starting up the Linux operating system	26
Upgrading device drivers	26
Linux-enabled workstations	27
Verifying hardware compatibility	27
Installing the Linux operating system	27
Red Hat Activation	27
HP software	28
Restoring the operating system	29
Restoring the Windows operating system	29
The RestorePlus! process	29
Creating a RestorePlus! CD	29
Restoring from RestorePlus! CDs	29
Restoring from RestorePlus! on the Recovery Partition	29
HP Backup and Recovery Manager restore points	30
Restoring from the HP Backup and Recovery Manager restore point CD/DVDs	30
Restoring from the HP Backup and Recovery Manager restore point on the Recovery Partition	30
Reclaiming hard disk space from the recovery partition	30
Ordering backup software	30
Restoring the Linux operating system	31
Downloading the latest HP driver CD contents	31
Installing the operating system with the HP driver CD contents	31
Protecting the software	32
System management	33
Computer Setup (F10) Utility	34
BIOS ROM	35
Using Computer Setup (F10) Utility	35
Computer Setup (F10) Utility menu	36
Desktop management	44
Initial configuration and deployment	44
Remote system installation	44
Managing and updating software	45
HP Client Manager software	45
Altiris Client Management solutions	45
System Software Manager	46
Proactive Change Notification	46
Subscriber’s Choice	46
ROM flash	47
Remote ROM flash	47
HPQFlash	47
FailSafe Boot Block ROM	47
Replicating the setup	48
Copying to a single workstation	49
Copying to multiple workstations	49
Dual-state power button	50
Worldwide web site	50
Building blocks and partners	51
Asset tracking and security	51
Password security	52
Establishing a setup password in the Computer Setup (F10) Utility	53
Establishing a power-on password in the Computer Setup (F10) Utility	53
Entering a power-on password	54
Entering a setup password	54
Changing a power-on or setup password	55
Deleting a power-on or setup password	55
National keyboard delimiter characters	56
Clearing passwords	56
Hood sensor (Smart Cover Sensor)	56
Setting the hood sensor protection level	57
Cable lock provision (optional)	57
Security lock (optional)	57
Universal chassis clamp lock (optional)	57
Access panel key lock	57
Fault notification and recovery	57
Drive Protection System	57
ECC fault prediction and pre-failure warranty	58
Thermal sensor	58
Removal and replacement procedures	59
Service considerations	60
Read cautions, warnings, and safety precautions	60
Electrostatic discharge information	60
Generating static	60
Preventing electrostatic damage to equipment	61
Personal grounding methods and equipment	61
Grounding the work area	61
Recommended materials and equipment	62
Required tools and software	62
Screws	62
Special handling of components	62
Cables and connectors	63
Hard drives	63
Lithium coin cell battery	63
Customer Self Repair	64
Pre-disassembly procedures	65
System board components	66
System board architecture	67
Removing and replacing components	68
Disassembly order	68
Removing the security lock (optional)	69
Removing the cable lock (optional)	70
Access panel	70
Front bezel	71
Bezel blanks	72
Hood sensor (Smart Cover Sensor)	73
Front panel I/O device assembly	73
Power button assembly and system speaker	74
Power supply	75
System/memory fan assembly	76
Memory	77
Memory module features	77
Memory module requirements	77
Removing memory module	78
Installing memory module	79
Installing a DIMM	80
PCI slots	81
PCI retainer	81
Removing the PCI retainer	82
Installing the PCI retainer	82
PCI retention clamp	83
PCI Express	84
Removing PCI or PCI Express cards	84
PCI or PCI Express installation	85
Front fan removal (Optional)	86
Battery	88
Power connections to drives	88
Optical drive	89
Replacing the SATA optical drive data cable	91
Diskette drive (optional)	92
Hard drive	94
Replacing a hard drive	94
Removing a hard drive	94
Installing a hard drive	95
Installing a hard drive In the fifth hard drive bay	97
Processor heatsink	98
Removing the CPU heatsink	98
Replacing the CPU heatsink	100
Processor	101
Removing the processor	101
Replacing the processor	103
System board	104
Removing the system board	104
Replacing the System Board:	105
System diagnostics and troubleshooting	107
E-Support	108
Help and support center and E-Support	108
Troubleshooting checklist	109
LED color definitions	110
HP Insight Diagnostics Offline Edition	111
Key features and benefits	111
Theory of operation	111
Starting the diagnostic utility from CD	111
Download the ISO image	112
User interface	112
Navigation	112
Survey tab	112
Test tab	113
Status tab	114
Log tab	114
Help tab	114
Diagnostic error codes	116
Diagnostic light codes	116
Troubleshooting scenarios and solutions	119
Solving minor problems	119
Solving power supply problems	120
Testing power supply	120
Solving diskette problems	122
Solving hard drive problems	124
Solving display problems	125
Solving audio problems	126
Solving printer problems	128
Solving keyboard and mouse problems	128
Solving front panel component problems	129
Solving hardware installation problems	130
Solving network problems	131
Solving memory problems	132
Solving processor problems	133
Solving CD-ROM and DVD problems	133
Solving Internet access problems	134
POST error messages	136
Appendix A — SAS devices	143
Supported SAS RAID configurations	144
SAS RAID 0 configuration	145
SAS RAID 1 configuration	146
SAS RAID 1E configuration	148
Appendix B—SATA devices	151
Attaching SATA HDDs	152
Configuring system BIOS	153
Creating RAID volumes	154
Deleting RAID volumes	155
Appendix C — Ultra ATA devices	157
Ultra ATA jumpers	158
Ultra ATA cables	159
Drive installation guidelines	160
Device classes	160
General attach guidelines	160
Attach sequence rules by class priority	160
Attach sequence worksheet	161
Example 1: Three device installation sample	162
Example 2: Four device installation sample	163
Additional drive application notes	163
SMART	164
Jumpers	165
CD-ROM or DVD-ROM drive	165
Appendix D — Connector pins	167
Connector pin descriptions	168
Appendix E — System board designators	177
Appendix F — Power cord set requirements	179
Appendix G — Routine care	181
General cleaning safety precautions	182
Maximizing the airflow	183
Cleaning the workstation case	184
Cleaning the keyboard	185
Cleaning the monitor	186
Cleaning the mouse	187
Appendix H — Additional password security and resetting CMOS	189
Resetting the password jumper	190
Clearing and Resetting the CMOS	191
Using the CMOS Button	191
Using Computer Setup to Reset CMOS	192
Appendix I — Quick troubleshooting flowcharts	193
Initial troubleshooting	194
No power	195
No power, part 1	195
No power, part 2	196
No power, part 3	197
No video	198
No video, part 1	198
No video, part 2	199
No video, part 3	200
Error messages	201
Error messages, part 1	201
Error messages, part 2	202
Error messages, part 3	203
No operating system loading	204
No operating system loading from hard drive	205
No operating loading from hard drive, part 1	205
No operating system loading from hard drive, part 2	206
No operating system loading from hard drive, part 3	207
No operating system loading from diskette drive	208
No operating system loading from CD-ROM drive	209
No operating system loading from network	210
Non-functioning device	211
Appendix J—PCI bus layout	213