HP Compaq dc7800 User Manual

System Board Drive Connections ...................................................................................... 78
Drive Positions ................................................................................................................... 79
Installing a 3.5-inch Hard Drive into an Internal Drive Bay ................................................ 80
Removing and Replacing a Removable 3.5-inch SATA Hard Drive .................................. 82
Installing a 5.25-inch or 3.5-inch Drive into an External Drive Bay .................................... 87
ReadyBoost Card ............................................................................................................................... 89
Front I/O Device and Power Switch ................................................................................................... 90
Fan Shroud ......................................................................................................................................... 91
Heatsink ............................................................................................................................................. 92
Processor ........................................................................................................................................... 93
Speaker .............................................................................................................................................. 94
Rear Chassis Fan ............................................................................................................................... 95
Inner Chassis Fan .............................................................................................................................. 96
Serial Port ........................................................................................................................................... 97
Power Supply ..................................................................................................................................... 98
System Board ..................................................................................................................................... 99
Battery .............................................................................................................................................. 100
Type 1 Battery Holder ...................................................................................................... 101
Type 2 Battery Holder ...................................................................................................... 101
Type 3 Battery Holder ...................................................................................................... 102
Changing from a Desktop to a Minitower Configuration ................................................................... 103
Changing from a Minitower to a Desktop Configuration ................................................................... 105
8 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
Preparation for Disassembly ............................................................................................................ 107
Unlocking the Smart Cover Lock ...................................................................................................... 108
Smart Cover FailSafe Key ............................................................................................... 108
Using the Smart Cover FailSafe Key to Remove the Smart Cover Lock ......................... 109
External Security Devices ................................................................................................................ 110
Installing a Security Lock ................................................................................................. 110
Cable Lock ...................................................................................................... 110
Padlock ........................................................................................................... 110
HP Business PC Security Lock ....................................................................... 111
Computer Access Panel ................................................................................................................... 113
Front Bezel ....................................................................................................................................... 114
Bezel Blanks ..................................................................................................................................... 115
Installing Additional Memory ............................................................................................................ 116
DIMMs ............................................................................................................................. 116
DDR2-SDRAM DIMMs .................................................................................................... 116
Populating DIMM Sockets ............................................................................................... 117
Installing DIMMs .............................................................................................................. 118
Expansion Cards .............................................................................................................................. 120
Cable Management .......................................................................................................................... 124
Cable Connections ........................................................................................................................... 125
Drives ............................................................................................................................................... 126
Drive Positions ................................................................................................................. 126
Installing and Removing Drives ....................................................................................... 127
System Board Drive Connections ................................................................... 129
Removing an Optical Drive ............................................................................. 130
Installing an Optical Drive into the 5.25-inch Drive Bay .................................. 131
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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