HP Compaq dc7800 User Manual

Installing a 5.25-inch or 3.5-inch Drive into an External Drive Bay
NOTE: A 3.5-inch drive may be a diskette drive or a media card reader. A 5.25-inch drive may be an
optical drive (DVD-ROM or SuperMulti LightScribe drive) or a media card reader with a 5.25-inch adapter
kit attached.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 60).
2. Remove the computer access panel (
Computer Access Panel on page 64).
3. If you are installing a drive in a bay covered by a bezel blank, remove the front bezel then remove
the bezel blank. See
Front Bezel on page 65 for more information.
4. Install two guide screws in the lower holes on each side of the drive (1).
NOTE: Optical drives, diskette drives, and media card readers use M3 metric guide screws. Eight
extra metric guide screws are provided on the diskette drive bracket under the access panel. The
HP-supplied metric screws are black.
If you are replacing a drive, transfer the guides screws from the old drive to the new one.
5. Install the drive in the desired drive bay by sliding it all the way into the front of the drive cage until
it locks (2). The drivelock automatically secures the drive in the bay.
CAUTION: The bottom 5.25-inch drive bay has a shorter depth than the upper two bays. The
bottom bay supports a half-height drive or other device that is no more than 14.5 cm (5.7 inches)
in depth. Do not try to force a larger drive, such as an optical drive, into the bottom bay. This could
cause damage to the drive and the system board. The use of unnecessary force when installing
any drive into the drive bay may result in damage to the drive.
NOTE: If you are installing a third optional drive, you may need to remove the strap that bundles
the extra power connectors.
Drives 87

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