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Solving power problems

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Solving power problems Common causes and solutions for power problems are listed in the following table. Table D-2 Solving Power Problems Power supply shuts down intermittently. Cause Solution Voltage selector switch on rear of workstation chassis (some Select the proper AC voltage using the selector switch. models) not switched to correct line voltage (115V or 230V). Power supply will not turn on because of internal power supply Replace the power supply. fault. Workstation powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause, and the workstation beeps two times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Processor thermal protection activated: A fan may be blocked or not turning. OR The heatsink is not properly attached to the processor. 1. Ensure that the workstation air vents are not blocked and the processor cooling fan is running. 2. Open hood, press power button, and see if the processor fan spins. If the processor fan is not spinning, make sure the fan's cable is plugged onto the system board header. 3. If fan is plugged in, but is not spinning, then replace the heatsink/fan assembly. Power LED flashes Red four times, once every second, followed by a two second pause, and the workstation beeps four times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Power failure (power supply is overloaded). 1. Check that the voltage selector, located on the rear of the power supply (some models), is set to the appropriate voltage. Proper voltage setting depends on your region. 2. Open the hood and ensure the 4- or 6-wire power supply cable is seated into the connector on the system board. 3. Check if a device is causing the problem by removing ALL attached devices (such as hard, diskette, or optical drives, and expansion cards). Power on the system. If the system enters the POST, then power off and replace one device at a time and repeat this procedure until failure occurs. Replace the device that is causing the failure. Continue adding devices one at a time to ensure all devices are functioning properly. 4. Replace the power supply. 5. Replace the system board. 126 Appendix D Troubleshooting without diagnostics ENWW

Section	Page
Install the operating system	11
Installing or upgrading device drivers	11
Transferring files and settings	12
Creating a disc recovery set	12
Computer Setup (F10) utility	13
Computer Setup (F10) utilities	13
Using Computer Setup (F10) utilities	14
Computer Setup—File	15
Computer Setup—Storage	16
Computer Setup—Security	19
Computer Setup—Power	21
Computer Setup—Advanced	22
Recovering the configuration settings	24
HP Insight Diagnostics	25
HP Insight Diagnostics	25
Accessing HP Insight Diagnostics	25
Survey tab	26
Test tab	26
Status tab	27
Log tab	28
Help tab	28
Saving and printing information in HP Insight Diagnostics	28
Downloading the latest version of HP Insight Diagnostics	29
Protecting the software	29
Restoring the software	29
Desktop management	31
Initial configuration and deployment	31
HP OpenView Agent	32
Altiris Deployment Solution Agent	32
HP Backup and Recovery Manager	32
Remote system installation	34
Software updating and management	34
HP Client Management Interface	34
HP System Software Manager	35
HP Client Manager	35
HP ProtectTools Security Manager	36
HP Client Management Premium Suite	36
HP Client Foundation Suite	37
HP OpenView Client Configuration Manager	37
HP OpenView Workstation Configuration Management solutions	37
Proactive change notification	38
Subscriber’s Choice	38
Retired solutions	38
ROM Flash	38
Remote ROM Flash	39
HPQFlash	39
Boot Block Emergency Recovery Mode	39
Replicating the setup	40
Copying to single workstation	40
Copying to multiple workstations	40
Creating a bootable device	41
Supported USB flash media device	41
Unsupported USB flash media device	43
Dual-State power button	44
HP web site support	45
Industry standards	45
Asset tracking and security	45
Password security	47
Establishing a Setup password using Computer Setup	48
Establishing a power-on password Using Computer Setup	48
Entering a power-on password	48
Entering a Setup password	48
Changing a power-on or Setup password	49
Deleting a power-on or Setup password	50
National keyboard delimiter characters	50
Clearing passwords	50
DriveLock	51
Using DriveLock	51
DriveLock applications	51
Smart Cover Sensor	53
Setting the Smart Cover Sensor protection level	53
Smart Cover Lock	53
Locking the Smart Cover Lock	54
Unlocking the Smart Cover Lock	54
Using the Smart Cover FailSafe Key	54
Cable Lock provision	54
Fingerprint identification technology	55
Fault notification and recovery	55
Drive protection system	55
Surge-tolerant power supply	55
Thermal sensor	55
Serial and Parallel ATA drive guidelines and features	57
SATA hard drives	57
SATA hard drive cables	58
SATA data cable	58
SATA power cable	58
PATA device information	59
ATA SMART Drives	59
Hard drive capacities	59
Identifying routine care and disassembly preparation	61
Electrostatic discharge information	62
Generating static	62
Preventing electrostatic damage to equipment	62
Personal grounding methods and equipment	63
Grounding the work area	63
Recommended materials and equipment	63
Operating guidelines	65
Routine care	65
General cleaning safety precautions	65
Cleaning the workstation case	65
Cleaning the keyboard	66
Cleaning the monitor	66
Cleaning the mouse	67
Service considerations	67
Power supply fan	67
Tools and software requirements	67
Screws	67
Cables and connectors	68
Hard drives	68
Lithium coin cell battery	68
Removal and replacement procedures	69
Preparation for disassembly	69
External security devices	70
Installing a cable lock	70
Installing a padlock	70
Access panel	71
Front bezel	72
Front drive bezels	73
Cable management	74
Cable connections	75
Memory	76
Expansion cards	77
Drives	84
Drive positions	84
Removing an external drive	84
Disconnecting optical cables	85
Disconnecting diskette drive cables	85
Releasing the drives	86
Installing an external drive	86
Replacing an internal hard drive	89
Chassis fan	93
Fan shroud	94
Front I/O panel housing assembly	95
Heatsink	96
Processor	97
Speaker	99
Power supply	100
System board	101
Battery	102
Type 1 Battery Holder	103
Type 2 Battery Holder	103
Type 3 Battery Holder	104
Connector pin assignments	105
Keyboard	105
Mouse	105
Ethernet BNC	105
Ethernet RJ-45	106
Ethernet AUI	106
Parallel interface	107
Serial interface, powered and non-powered	107
USB	108
Microphone	108
Headphone	108
Line-in audio	108
Line-out audio	108
External infrared transceiver	109
Monitor	109
ATA/ATAPI (IDE) Standard drive cable	110
24-Pin Power	110
4-Pin Power (for CPU)	111
SATA data and power	111
PCI Express	111
PCI Express	112
DVI connector	113
Power cord set requirements	115
General requirements	115
Japanese power cord requirements	115
Country-specific requirements	115
POST error messages	117
Power-On Self-Test (POST)	117
POST numeric codes and text messages	118
Interpreting POST diagnostic front panel LEDs and audible codes	125
Troubleshooting without diagnostics	129
Safety and comfort	129
Before you call for technical support	129
Helpful hints	130
Solving general problems	132
Solving power problems	136
Solving diskette problems	137
Solving hard drive problems	140
Solving media card reader problems	142
Solving display problems	144
Solving audio problems	148
Solving printer problems	150
Solving keyboard and mouse problems	151
Solving hardware installation problems	153
Solving network problems	155
Solving memory problems	158
Solving processor problems	160
Solving CD-ROM and DVD problems	161
Solving drive key problems	164
Solving front panel component problems	165
Solving internet access problems	166
Solving software problems	168
System board and riser board reference designators	169
Memory	175
DDR2-SDRAM DIMMs	175
Populating DIMM sockets	176

Match case Limit results 1 per page

Solving power problems

Common causes and solutions for power problems are listed in the following table.

Table

Solving Power Problems

Power supply shuts down intermittently.

Cause

Solution

Voltage selector switch on rear of workstation chassis (some

models) not switched to correct line voltage (115V or 230V).

Select the proper AC voltage using the selector switch.

Power supply will not turn on because of internal power supply

fault.

Replace the power supply.

Workstation powered off automatically and the Power LED flashes Red two times, once every second,

followed by a two second pause, and the workstation beeps two times. (Beeps stop after fifth iteration but

LEDs continue flashing.)

Cause

Solution

Processor thermal protection activated:

A fan may be blocked or not turning.

The heatsink is not properly attached to the processor.

Ensure that the workstation air vents are not blocked and

the processor cooling fan is running.

Open hood, press power button, and see if the processor

fan spins. If the processor fan is not spinning, make sure

the fan's cable is plugged onto the system board header.

If fan is plugged in, but is not spinning, then replace the

heatsink/fan assembly.

Power LED flashes Red four times, once every second, followed by a two second pause, and the

workstation beeps four times. (Beeps stop after fifth iteration but LEDs continue flashing.)

Cause

Solution

Power failure (power supply is overloaded).

Check that the voltage selector, located on the rear of the

power supply (some models), is set to the appropriate

voltage. Proper voltage setting depends on your region.

Open the hood and ensure the 4- or 6-wire power supply

cable is seated into the connector on the system board.

Check if a device is causing the problem by removing ALL

attached devices (such as hard, diskette, or optical drives,

and expansion cards). Power on the system. If the system

enters the POST, then power off and replace one device

at a time and repeat this procedure until failure occurs.

Replace the device that is causing the failure. Continue

adding devices one at a time to ensure all devices are

functioning properly.

Replace the power supply.

Replace the system board.

126 Appendix

Troubleshooting without diagnostics

ENWW