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Compaq Pro 6305 Maintenance and Service Guide Pro 6305 Microtower Business PC - Page 201

Table 10-1, Control panel message, Description, Recommended action, Storage, DPS Self-test

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Table 10-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 912-Computer Cover Has Been Removed Since Last System Startup Computer cover was removed since last system startup. No action required. 917-Front Audio Not Connected Front audio harness has been detached or unseated from motherboard. Reconnect or replace front audio harness. 918-Front USB Not Connected Front USB harness has been detached or unseated from motherboard. Reconnect or replace front USB harness. 921-Device in PCI Express slot failed to initialize There is an incompatibility/problem with this device and the system or PCI Express Link could not be retrained to an x1. Try rebooting the system. If the error reoccurs, the device may not work with this system 1151-Serial Port A Address Conflict Detected Both external and internal serial ports are assigned to COM1. 1. Remove any serial port expansion cards. 2. Clear CMOS. (See Appendix B, Password Security and Resetting CMOS on page 199.) 3. Reconfigure card resources and/or run Computer Setup or Windows utilities. 1152-Serial Port B Address Conflict Detected Both external and internal serial ports are assigned to COM2. 1. Remove any serial port expansion cards. 2. Clear CMOS. (See Appendix B, Password Security and Resetting CMOS on page 199.) 3. Reconfigure card resources and/or run Computer Setup or Windows utilities. 1155-Serial Port Address Conflict Detected Both external and internal serial ports are assigned to same IRQ. 1. Remove any serial port expansion cards. 2. Clear CMOS. (See Appendix B, Password Security and Resetting CMOS on page 199.) 3. Reconfigure card resources and/or run Computer Setup or Windows utilities. 1720-SMART Hard Drive Detects Imminent Failure Hard drive is about to fail. (Some hard 1. Determine if hard drive is giving correct drives have a hard drive firmware patch that error message. Enter Computer Setup will fix an erroneous error message.) and run the Drive Protection System test under Storage > DPS Self-test. 2. Apply hard drive firmware patch if applicable. (Available at http://www.hp.com/support.) 3. Back up contents and replace hard drive. 1796-SATA Cabling Error One or more SATA devices are improperly attached. For optimal performance, the SATA 0 and SATA 1 connectors must be used before SATA 2 and SATA 3. Ensure SATA connectors are used in ascending order. For one device, use SATA 0. For two devices, use SATA 0 and SATA 1. For three devices, use SATA 0, SATA 1, and SATA 2. POST Numeric Codes and Text Messages 191

Section	Page
Product Features	11
Standard Configuration Features	11
Microtower (MT) Front Panel Components	12
Small Form Factor (SFF) Front Panel Components	13
Microtower (MT) Rear Panel Components	14
Small Form Factor (SFF) Rear Panel Components	15
Serial Number Location	16
Activating and Customizing the Software	17
Activating and customizing the software in Windows 7	17
Activating the Windows operating system	17
Downloading Windows 7 updates	18
Installing or upgrading device drivers	18
Customizing the monitor display	18
Activating and customizing the software in Windows 8	18
Activating the Windows Operating System	18
Downloading Windows 8 updates	19
Customizing the monitor display	19
Computer Setup (F10) Utility	20
Computer Setup (F10) Utilities	20
Using Computer Setup (F10) Utilities	21
Computer Setup—File	22
Computer Setup—Storage	23
Computer Setup—Security	26
Computer Setup—Power	31
Computer Setup—Advanced	32
Recovering the Configuration Settings	34
Illustrated parts catalog	35
Microtower (MT) chassis spare parts	35
Computer major components	35
Cables	37
Misc parts	38
Drives	40
Misc boards	40
Sequential part number listing	41
Small Form Factor (SFF) chassis spare parts	45
Computer major components	45
Cables	47
Misc parts	48
Drives	50
Misc boards	50
Sequential part number listing	51
Routine Care, SATA Drive Guidelines, and Disassembly Preparation	55
Electrostatic Discharge Information	55
Generating Static	55
Preventing Electrostatic Damage to Equipment	56
Personal Grounding Methods and Equipment	56
Grounding the Work Area	57
Recommended Materials and Equipment	57
Operating Guidelines	58
Routine Care	58
General Cleaning Safety Precautions	58
Cleaning the Computer Case	59
Cleaning the Keyboard	59
Cleaning the Monitor	59
Cleaning the Mouse	60
Service Considerations	60
Power Supply Fan	60
Tools and Software Requirements	60
Screws	60
Cables and Connectors	61
Hard Drives	61
Lithium Coin Cell Battery	61
SATA Hard Drives	62
SATA Hard Drive Cables	62
SATA Data Cable	62
SMART ATA Drives	62
Cable Management	62
Hard Drive Capacities	63
Removal and Replacement Procedures Microtower (MT) Chassis	64
Preparation for Disassembly	64
Computer Access Panel	65
Front Bezel	66
Front Bezel Security	67
Bezel Blanks	69
Memory	70
DIMMs	70
DDR3-SDRAM DIMMs	70
Populating DIMM Sockets	71
Installing DIMMs	72
Expansion Cards	74
WLAN module	77
System Board Connections	79
Drives	80
Drive Positions	82
Removing a 5.25-inch or 3.5-inch Drive from a Drive Bay	83
Installing a 5.25-inch or 3.5-inch Drive into a Drive Bay	85
Removing a Hard Drive from a Drive Bay	87
Installing a Hard Drive into an Internal Drive Bay	88
Removing and Replacing a Removable 3.5-inch SATA Hard Drive	90
Front Fan Assembly	95
Front I/O Assembly	96
Power Switch/LED Assembly	97
Heat sink	99
Processor	100
Speaker	101
Rear Chassis Fan	103
Power Supply	105
System Board	106
Removal and Replacement Procedures Small Form Factor (SFF) Chassis	109
Preparation for Disassembly	109
Access Panel	110
Front Bezel	111
Front Bezel Security	112
Bezel Blanks	114
Memory	115
DIMMs	115
DDR3-SDRAM DIMMs	115
Populating DIMM Sockets	116
Installing DIMMs	117
Expansion Card	119
WLAN module	123
System Board Connections	125
Drives	126
Drive Positions	127
Installing and Removing Drives	127
Removing a 5.25-inch Drive from a Drive Bay	129
Installing a 5.25-inch Drive into a Drive Bay	129
Removing a 3.5-inch Drive from a Drive Bay	131
Installing a 3.5-inch Drive into a Drive Bay	133
Removing and Replacing the Primary 3.5-inch Internal Hard Drive	135
Removing and Replacing a Removable 3.5-inch SATA Hard Drive	137
Fan duct	142
Front Fan Assembly	143
Hood Sensor	145
Front I/O, Power Switch Assembly	146
Speaker	148
Heat sink	149
Processor	151
Power Supply	152
System Board	153
Using the Small Form Factor Computer in a Tower Orientation	155
Troubleshooting Without Diagnostics	156
Safety and Comfort	156
Before You Call for Technical Support	156
Helpful Hints	157
Solving General Problems	158
Solving Power Problems	162
Solving Hard Drive Problems	164
Solving Media Card Reader Problems	166
Solving Display Problems	168
Solving Audio Problems	173
Solving Printer Problems	175
Solving Keyboard and Mouse Problems	176
Solving Hardware Installation Problems	179
Solving Network Problems	181
Solving Memory Problems	185
Solving Processor Problems	186
Solving CD-ROM and DVD Problems	187
Solving USB Flash Drive Problems	189
Solving Front Panel Component Problems	190
Solving Internet Access Problems	191
Solving Software Problems	192
Contacting Customer Support	194
HP PC Hardware Diagnostics	195
Why run HP PC Hardware Diagnostics – UEFI	195
How to access and run HP PC Hardware Diagnostics - UEFI	195
Downloading HP PC Hardware Diagnostics to a USB device	196
POST Error Messages	197
POST Numeric Codes and Text Messages	197
Interpreting POST Diagnostic Front Panel LEDs and Audible Codes	205
Password Security and Resetting CMOS	209
Resetting the Password Jumper	209
Clearing and Resetting the CMOS	210
Backup and Recovery	213
Restoring and recovering in Windows 7	213
System Restore	213
System Recovery	213
System Recovery when Windows is responding	214
System Recovery when Windows is not responding	215
System recovery using recovery media	215
Creating recovery media	216
Using recovery media	217
Backup and recovery in Windows 8	217
Backing up your information	218
Performing a system recovery	218
Using the Windows recovery tools	219
Using f11 recovery tools	219
Using Windows 8 operating system media (purchased separately)	220
Battery Replacement	221
Power Cord Set Requirements	224
General Requirements	224
Japanese Power Cord Requirements	224
Country-Specific Requirements	225
Specifications	226
MT Specifications	226
SFF Specifications	227

Match case Limit results 1 per page

Table 10-1

Numeric Codes and Text Messages (continued)

Control panel message

Description

Recommended action

912-Computer Cover Has Been Removed

Since Last System Startup

Computer cover was removed since last

system startup.

No action required.

917-Front Audio Not Connected

Front audio harness has been detached or

unseated from motherboard.

Reconnect or replace front audio harness.

918-Front USB Not Connected

Front USB harness has been detached or

unseated from motherboard.

Reconnect or replace front USB harness.

921-Device in PCI Express slot failed to

initialize

There is an incompatibility/problem with this

device and the system or PCI Express Link

could not be retrained to an x1.

Try rebooting the system. If the error

reoccurs, the device may not work with this

system

1151-Serial Port A Address Conflict Detected

Both external and internal serial ports are

assigned to COM1.

Remove any serial port expansion

cards.

Clear CMOS. (See Appendix B,

Password Security and Resetting CMOS

on page

199

Reconfigure card resources and/or run

Computer Setup or Windows utilities.

1152-Serial Port B Address Conflict Detected

Both external and internal serial ports are

assigned to COM2.

Remove any serial port expansion

cards.

Clear CMOS. (See Appendix B,

Password Security and Resetting CMOS

on page

199

Reconfigure card resources and/or run

Computer Setup or Windows utilities.

1155-Serial Port Address Conflict Detected

Both external and internal serial ports are

assigned to same IRQ.

Remove any serial port expansion

cards.

Clear CMOS. (See Appendix B,

Password Security and Resetting CMOS

on page

199

Reconfigure card resources and/or run

Computer Setup or Windows utilities.

1720-SMART Hard Drive Detects Imminent

Failure

Hard drive is about to fail. (Some hard

drives have a hard drive firmware patch that

will fix an erroneous error message.)

Determine if hard drive is giving correct

error message. Enter Computer Setup

and run the Drive Protection System test

under

Storage

DPS Self-test

Apply hard drive firmware patch

if applicable. (Available at

http://www.hp.com/

support

Back up contents and replace hard

drive.

1796-SATA Cabling Error

One or more SATA devices are improperly

attached. For optimal performance, the

SATA 0 and SATA 1 connectors must be

used before SATA 2 and SATA 3.

Ensure SATA connectors are used in

ascending order. For one device, use SATA

0. For two devices, use SATA 0 and SATA

1. For three devices, use SATA 0, SATA 1,

and SATA 2.

POST Numeric Codes and Text Messages

191