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HP dx7200 HP Compaq Business PC dx7200 MT Service Reference Guide, 1st edition - Page 174

Activity, Beeps, Possible Cause, Recommended Action, Desktop Management Guide

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POST Error Messages POST Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity Red Power LED flashes four times, once every second, followed by a two second pause. Red Power LED flashes five times, once every second, followed by a two second pause. Red Power LED flashes six times, once every second, followed by a two second pause. Red Power LED flashes seven times, once every second, followed by a two second pause. Red Power LED flashes eight times, once every second, followed by a two second pause. Beeps 4 5 6 7 8 Possible Cause Power failure (power supply is overloaded). Pre-video memory error. Pre-video graphics error. System board failure (ROM detected failure prior to video). Invalid ROM based on bad checksum. Recommended Action Open the hood and ensure the 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. Reseat DIMMs. Power on the system. Replace DIMMs one at a time to isolate the faulty module. Replace third-party memory with HP memory. Replace the system board. For systems with a graphics card: Reseat the graphics card. Power on the system. Replace the graphics card. Replace the system board. For systems with integrated graphics, replace the system board. Replace the system board. Reflash the ROM with the latest BIOS image. See the "ROM Flash" section of the Desktop Management Guide on the Documentation and Diagnostics CD. Replace the system board. C-10 390812-001 Service Reference Guide, dx7200

Section	Page
Contents	5
Installing the Operating System	9
1.1 Installing or Upgrading Device Drivers	9
1.2 Transferring Files and Settings	10
1.3 Backing Up and Restoring Files	10
1.3.1 Creating a Backup File-Windows XP Professional	10
1.3.2 Restoring from the Backup File-Windows XP Professional	10
1.4 Converting to NTFS	10
1.5 HP Software	10
Setup Utilities and Diagnostics Features	13
2.1 Power-On Self-Test (POST)	13
2.2 Computer Setup Utilities	14
2.2.1 Using Computer Setup (F10) Utilities	15
2.2.2 Computer Setup Menu	16
2.2.3 Recovering the Configuration Settings	26
2.3 HP Insight Diagnostics	26
2.3.1 Accessing HP Insight Diagnostics	26
2.3.2 Survey Tab	27
2.3.3 Test Tab	28
2.3.4 Status Tab	29
2.3.5 Log Tab	29
2.3.6 Saving and Printing Information in HP Insight Diagnostics	29
2.3.7 Downloading the Latest Version of HP Insight Diagnostics	30
Desktop Management	31
3.1 Initial Configuration and Deployment	31
3.1.1 Altiris Deployment Solution Agent	32
3.1.2 HP Local Recovery	32
3.2 Remote System Installation	32
3.3 Software Updating and Management	33
3.3.1 HP System Software Manager	33
3.3.2 HP Client Manager	33
3.3.3 HP Client Management Solutions using Altiris	34
3.3.4 HP Local Recovery	35
3.3.5 Dantz Retrospect Express	35
3.3.6 Proactive Change Notification	36
3.3.7 Subscriber’s Choice	36
3.3.8 Retired Solutions	36
3.4 ROM Flash	37
3.4.1 Remote ROM Flash	37
3.4.2 HPQFlash	37
3.4.3 Boot Block Emergency Recovery Mode	37
3.4.4 Replicating the Setup	38
3.4.5 Dual-State Power Button	43
3.4.6 World Wide Web Site	43
3.4.7 Building Blocks and Partners	43
3.5 Asset Tracking and Security	44
3.5.1 Password Security	47
3.5.2 Establishing a Setup Password Using Computer Setup	47
3.5.3 Establishing a Power-On Password Using Computer Setup	48
3.5.4 DriveLock	50
3.5.5 Smart Cover Sensor	52
3.5.6 Cable Lock Provision	54
3.5.7 TPM Embedded Security Chip and HP ProtectTools Security Manager	54
3.6 Fault Notification and Recovery	54
3.6.1 Drive Protection System	54
3.6.2 Surge-Tolerant Power Supply	54
3.6.3 Thermal Sensor	54
Serial and Parallel ATA Drive Guidelines and Features	55
4.1 SATA 1.5 and 3.0 Hard Drives	55
4.2 SATA Hard Drive Cables	56
4.2.1 SATA Data Cable	56
4.2.2 SATA Power Cable	56
4.3 PATA Device Information	57
4.4 PATA Cables	57
4.4.1 PATA Data Cable	57
4.4.2 PATA Power Cable	58
4.5 PATA Drive Installation Guidelines	58
4.5.1 PATA Device Classes	58
4.6 SATA SMART Drives	59
4.7 Drive Capacities	59
4.8 SATA BIOS	59
4.8.1 Legacy Mode	60
4.8.2 Native Mode	60
4.9 Mixed Devices Boot and Drive Letter Ordering	61
Identifying the Chassis, Routine Care, and Disassembly Preparation	63
5.1 Chassis Designations	63
5.1.1 Microtower (MT)	63
5.1.2 Slim Tower (ST)	64
5.2 Electrostatic Discharge Information	65
5.2.1 Generating Static	65
5.2.2 Preventing Electrostatic Damage to Equipment	65
5.2.3 Personal Grounding Methods and Equipment	66
5.2.4 Grounding the Work Area	66
5.2.5 Recommended Materials and Equipment	66
5.3 Operating Guidelines	67
5.4 Routine Care	67
5.4.1 General Cleaning Safety Precautions	67
5.4.2 Cleaning the Computer Case	68
5.4.3 Cleaning the Keyboard	68
5.4.4 Cleaning the Monitor	69
5.4.5 Cleaning the Mouse	69
5.5 Service Considerations	69
5.5.1 Power Supply Fan	69
5.5.2 Tools and Software Requirements	69
5.5.3 Screws	70
5.5.4 Cables and Connectors	70
5.5.5 Hard Drives	70
5.5.6 Lithium Coin Cell Battery	71
Removal and Replacement Procedures- Microtower (MT) Chassis	73
6.1 Preparation for Disassembly	73
6.2 External Security Devices	74
6.2.1 Installing a Cable Lock	74
6.2.2 Installing a Padlock	75
6.3 Access Panel	76
6.4 Front Bezel	77
6.5 Front Drive Bezels	79
6.5.1 5.25\	79
6.5.2 Diskette Drive Bezel	80
6.5.3 3.5\	80
6.6 Cable Management	81
6.7 Memory	82
6.8 Expansion Cards	83
6.9 Drives	87
6.9.1 Drive Positions	87
6.9.2 Removing a Drive	88
6.9.3 Installing a Drive	90
6.10 Chassis Fan	93
6.11 Front I/O Panel Housing Assembly	94
6.12 Front I/O Devices	95
6.13 Power Switch Assembly	96
6.14 Heatsink	97
6.15 Processor	98
6.16 Speaker	100
6.17 Power Supply	101
6.18 System Board	103
6.19 Battery	104
6.19.1 Type 1 Battery Holder	105
6.19.2 Type 2 Battery Holder	106
6.19.3 Type 3 Battery Holder	107
Removal and Replacement Procedures- Slim Tower (ST) Chassis	109
7.1 Preparation for Disassembly	109
7.2 Unlocking the Smart Cover Lock	111
7.3 Hood Sensor	113
7.4 External Security Devices	114
7.4.1 Security Clip	114
7.4.2 Cable Lock	114
7.4.3 Padlock	115
7.5 Computer Cover	116
7.6 Front Drive Bezels	117
7.7 Cable Management	119
7.8 Memory	120
7.9 Vertically Oriented Expansion Card	121
7.9.1 Expansion Card Retainer	121
7.9.2 PCI Expansion Card	122
7.9.3 PCI Express Expansion Card	124
7.10 Drives	125
7.10.1 Drive Positions	125
7.10.2 Optical Drive	126
7.10.3 External 3.5-inch Drive	128
7.10.4 Primary Hard Drive	130
7.11 Fan Shroud	134
7.12 Chassis Fan	135
7.13 Front I/O Devices	136
7.14 Power Switch Assembly	137
7.15 Heatsink	138
7.16 Processor	139
7.17 Speaker	141
7.18 Power Supply	142
7.19 System Board	144
7.20 Battery	147
7.20.1 Type 1 Battery Holder	148
7.20.2 Type 2 Battery Holder	149
7.20.3 Type 3 Battery Holder	150
Connector Pin Assignments	151
Power Cord Set Requirements	163
POST Error Messages	165
Troubleshooting Without Diagnostics	177
System Board and Riser Board Reference Designators	205
Memory	209

Match case Limit results 1 per page

C–10

390812-001

Service Reference Guide, dx7200

POST Error Messages

Red Power LED

flashes four times,

once every

second, followed

by a two second

pause.

Power failure

(power supply is

overloaded).

Open the hood and ensure the 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.

Red Power LED

flashes five times,

once every

second, followed

by a two second

pause.

Pre-video memory

error.

Reseat DIMMs. Power on the system.

Replace DIMMs one at a time to isolate

the faulty module.

Replace third-party memory with HP

memory.

Replace the system board.

Red Power LED

flashes six times,

once every

second, followed

by a two second

pause.

Pre-video

graphics error.

For systems with a graphics card:

Reseat the graphics card. Power on the

system.

Replace the graphics card.

Replace the system board.

For systems with integrated graphics,

replace the system board.

Red Power LED

flashes seven

times, once every

second, followed

by a two second

pause.

System board

failure (ROM

detected failure

prior to video).

Replace the system board.

Red Power LED

flashes eight times,

once every

second, followed

by a two second

pause.

Invalid ROM

based on bad

checksum.

Reflash the ROM with the latest BIOS

image. See the “ROM Flash” section of the

Desktop Management Guide

on the

Documentation and Diagnostics

CD.

Replace the system board.

POST Diagnostic Front Panel LEDs and Audible Codes

(Continued)

Activity

Beeps

Possible Cause

Recommended Action