Compaq QuickSpecs, HP Compaq dc7800 Business PC, Technical Specifications - Optical Storage

QuickSpecs

HP Compaq dc7800 Business PC

Technical Specifications - Optical Storage

Access time

(typical reads, including settling)

Power

Audio output

Environmental conditions (operating – non-condensing)

DVD-R DL, DVD+R DL	Up to 6X
DVD+R, DVD-R	Up to 8X
DVD-ROM DL, DVD-	Up to 8X
ROM
CD-ROM, CD-R	Up to 24X
CD-RW	Up to 24X
Random	DVD: < 140 ms (typical), CD: < 125 ms
	(typical)
Full Stroke	DVD: < 250 ms (seek), CD: < 210 ms (seek)
Stop Time	< 4 seconds
Cache Buffer	2 MB (minimum)
Data Transfer Modes	ATA PIO mode 4 (16.7 MB/s); ATA Multi-word
	DMA mode 2 (16.7 MB/s); ATA UltraDMA
	Mode 3 (44.4 MB/s - default)
Source	Four-pin, DC power receptacle
DC Power Requirement5 VDC ± 5%-100 mV ripple p-p
	12 VDC ± 5%-200 mV ripple p-p
DC Current	5 VDC (< 1000 mA typical, 1600 mA
	maximum)
	12 VDC (< 600 mA typical, 1400 mA
	maximum)
Total Drive Power	< 2.5 Watt
(standby mode)
Line-Out	0.7 VRMS
Signal-to-Noise Ratio	74 dB
Channel Separation	65 dB
Temperature	41° to 122° F (5° to 50° C)
Relative Humidity	10% to 90%
Maximum Wet Bulb	86° F (30° C)
Temperature

PATA CD-RW/DVD-	Height	12.7mm height slim CD-RW
ROM Combo Slim DriveOrientation		Either horizontal or vertical
	Interface type	PATA/ATAPI
	Disc capacity	Single layer: Up to 4.7 GB (6 times capacity of CD-ROM)
	Dimensions (W x H x D) 5.0 x 0.5 x 5.0 in (128 x 13.6 x 129 mm)
	Weight (max)	0.42 lb (190 g)
	Write speeds	CD-R	Up to 24X
		CD-RW	Up to 24X
	Read speeds	DVD+R/-R/+RW/	Up to 4X
		-RW/+R DL /-R DL

Access time

(typical reads, including settling)

DVD-ROM	Up to 8X
CD-ROM, CD-R	Up to 24X
CD-RW	Up to 24X
Random DVD	DVD: < 140 ms (typical), CD: < 125 ms
	(typical)
Random CD	DVD: < 250 ms (typical), CD: < 210 ms
	(typical)

DA - 12744 Worldwide QuickSpecs — Version 13 — 12.14.2007 Page 43