HP Compaq dc7800 User Manual

Removing an External 3.5-inch Drive .............................................................. 134
Installing a Drive into the 3.5-inch External Drive Bay .................................... 136
Primary 3.5-inch Internal SATA Hard Drive .................................................... 138
Removable 3.5-inch SATA Hard Drive ............................................................ 140
ReadyBoost Card ............................................................................................................................. 144
Fan Shroud ....................................................................................................................................... 145
Chassis Fan ..................................................................................................................................... 146
Power Switch Assembly ................................................................................................................... 147
Front I/O Device ............................................................................................................................... 148
Heatsink ........................................................................................................................................... 149
Processor ......................................................................................................................................... 150
Speaker ............................................................................................................................................ 151
Power Supply ................................................................................................................................... 152
System Board ................................................................................................................................... 153
Backwall ........................................................................................................................................... 155
Battery .............................................................................................................................................. 156
Type 1 Battery Holder ...................................................................................................... 157
Type 2 Battery Holder ...................................................................................................... 157
Type 3 Battery Holder ...................................................................................................... 158
9 Removal and Replacement Procedures Ultra-Slim Desktop (USDT) Chassis
Preparation for Disassembly ............................................................................................................ 159
External Security Devices ................................................................................................................ 160
Cable Lock ....................................................................................................................... 160
HP Business PC Security Lock ........................................................................................ 161
Computer Access Panel ................................................................................................................... 163
Front Bezel ....................................................................................................................................... 164
Bezel Blanks ..................................................................................................................................... 165
Memory ............................................................................................................................................ 166
SODIMMs ........................................................................................................................ 166
DDR2-SDRAM SODIMMs ............................................................................................... 166
Populating SODIMM Sockets .......................................................................................... 167
Installing SODIMMs ......................................................................................................... 167
Cable Management .......................................................................................................................... 169
Cable Connections ........................................................................................................................... 170
Optical Drive ..................................................................................................................................... 170
Removing the Optical Drive ............................................................................................. 170
Preparing a New Optical Drive ........................................................................................ 171
Installing a New Optical Drive .......................................................................................... 172
Optical Drive Connector ................................................................................................................... 173
Hard Drive ........................................................................................................................................ 174
Hard Drive Cage ............................................................................................................................... 178
Port Cover ........................................................................................................................................ 179
ReadyBoost Card ............................................................................................................................. 180
Fan ................................................................................................................................................... 181
Speaker ............................................................................................................................................ 182
I/O Panel .......................................................................................................................................... 183
Heatsink ........................................................................................................................................... 184
Processor ......................................................................................................................................... 186
System Board ................................................................................................................................... 187
ix

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