HP Compaq dc7800 User Manual

Computer seems to be locked up.
Cause Solution
off the power. To restart the computer, press the power button
again.
The removable hard drive has no power to the hard drive enclosure.
Cause Solution
The lock on the enclosure is not turned to the “ON” position. Insert the key and turn the lock clockwise 90 degrees. The
green LED on the front of the enclosure should be on.
Power cable from the computer power supply to the enclosure
frame is not properly connected.
Check the power supply to make sure it is properly connected
to the rear of the enclosure frame.
The removable hard drive is not recognized by the computer.
Cause
Solution
The removable hard drive carrier is not fully seated in the
enclosure frame or the hard drive is not fully seated in the
carrier.
Push the carrier into the enclosure frame so that the connector
on the rear of the frame is properly seated. If this does not solve
the problem, turn off the computer, remove the carrier, and
check to see if the connector on the hard drive is properly
seated in the carrier.
The removable hard drive enclosure is beeping and the green LED is flashing.
Cause Solution
Fan failure alarm on the removable hard drive enclosure has
been activated.
Shut down the computer and contact HP for a replacement
enclosure.
Solving Media Card Reader Problems
Table D-5 Solving Media Card Reader Problems
Media card will not work in a digital camera after formatting it in Microsoft Windows XP or Microsoft Windows Vista.
Cause
Solution
By default, Windows XP and Windows Vista will format any
media card with a capacity greater than 32MB with the FAT32
format. Most digital cameras use the FAT (FAT16 & FAT12)
format and can not operate with a FAT32 formatted card.
Either format the media card in the digital camera or select FAT
file system to format the media card in a computer with
Windows XP or Windows Vista.
Table D-4 Solving Hard Drive Problems (continued)
228 Appendix D Troubleshooting Without Diagnostics

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