HP Compaq dc7800 User Manual

Rear Chassis Fan ............................................................................................................................. 188
Battery .............................................................................................................................................. 189
Appendix A Connector Pin Assignments
Keyboard .......................................................................................................................................... 191
Mouse ............................................................................................................................................... 191
Ethernet BNC ................................................................................................................................... 191
Ethernet RJ-45 ................................................................................................................................. 192
Ethernet AUI ..................................................................................................................................... 192
Parallel Interface .............................................................................................................................. 193
Serial Interface, Powered and Non-Powered ................................................................................... 193
USB .................................................................................................................................................. 194
Microphone ....................................................................................................................................... 194
Headphone ....................................................................................................................................... 194
Line-in Audio .................................................................................................................................... 194
Line-out Audio .................................................................................................................................. 194
External Infrared Transceiver ........................................................................................................... 195
Monitor ............................................................................................................................................. 195
ATA/ATAPI (IDE) Standard Drive Cable .......................................................................................... 196
CD-ROM 50-Pin Connector .............................................................................................................. 197
24-Pin Power .................................................................................................................................... 197
24-Pin MicroFit Power (CMT, SFF) .................................................................................................. 198
4-Pin Power (for CPU) ...................................................................................................................... 198
6-Pin Power (for CPU) (CMT, SFF) .................................................................................................. 198
SATA Data and Power ..................................................................................................................... 199
PCI Express .................................................................................................................................... 199
PCI Express ..................................................................................................................................... 200
PCI Express Mini Card ..................................................................................................................... 201
DVI Connector .................................................................................................................................. 202
Appendix B Power Cord Set Requirements
General Requirements ..................................................................................................................... 203
Japanese Power Cord Requirements .............................................................................................. 203
Country-Specific Requirements ........................................................................................................ 204
Appendix C POST Error Messages
POST Numeric Codes and Text Messages ..................................................................................... 206
Interpreting POST Diagnostic Front Panel LEDs and Audible Codes .............................................. 212
Appendix D Troubleshooting Without Diagnostics
Safety and Comfort .......................................................................................................................... 216
Before You Call for Technical Support ............................................................................................. 216
Helpful Hints ..................................................................................................................................... 217
Solving General Problems ................................................................................................................ 219
Solving Power Problems .................................................................................................................. 222
Solving Diskette Problems ............................................................................................................... 223
Solving Hard Drive Problems ........................................................................................................... 226
Solving Media Card Reader Problems ............................................................................................. 228
Solving Display Problems ................................................................................................................. 230
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HP Compaq dc7800 Specifications

General

Tcase	73.3 °C
Bus type	FSB
Stepping	M0
Processor cache	2 MB
Processor cores	2
Processor model	E4600
System bus rate	- GT/s
Processor family	Intel® Core™2 Duo
Processor series	Intel Core 2 Duo E4000 Series
Processor socket	LGA 775 (Socket T)
Processor codename	Conroe
Processing Die size	111 mm²
Processor frequency	2.4 GHz
Processor cache type	L2
Processor lithography	65 nm
Processor manufacturer	Intel
Processor front side bus	800 MHz
Processor operating modes	64-bit
ECC supported by processor	No
Thermal Design Power (TDP)	65 W
CPU multiplier (bus/core ratio)	12
Number of Processing Die Transistors	167 M
Internal memory	1 GB
Internal memory type	DDR2-SDRAM
Maximum internal memory	8 GB
Memory layout (slots x size)	2 x 0.5 GB
HDD speed	7200 RPM
HDD interface	SATA
Optical drive type	DVD Super Multi
Total storage capacity	160 GB
Audio input	1
LightScribe	Yes
Networking features	Intel 82566DM Gigabit Network Connection
Graphics card RAMDAC	400 MHz
Storage drive controller	SATA 3, 0 Gb/s NCQ SMART VI
Discrete graphics card model	Intel® GMA 3100
Maximum graphics card memory	0.256 GB
Operating system installed	Windows Vista Business
USB 2.0 ports quantity	8
Chassis type	Mini Tower
Country of origin	China
Cable lock slot type	Kensington
Operating altitude	0 - 3048 m
Non-operating altitude	0 - 9144 m
Storage temperature (T-T)	-30 - 60 °C
Operating temperature (T-T)	10 - 35 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	10 - 90 %
Power supply	365 W
Product type	PC
Processor code	SLA94
Processor ARK ID	32242
Processor package size	37.5 x 37.5 mm

Weight and Dimensions

Depth	452 mm
Width	177 mm
Height	447 mm
Weight	11800 g