Compaq manual Technical Specifications - Hard Drives, QuickSpecs, HP Compaq dc7800 Business PC

QuickSpecs

HP Compaq dc7800 Business PC

Technical Specifications - Hard Drives

7200 RPM Serial ATA 500-GB Hard Drives

250-GB

Capacity	500,107,862,016 bytes
Height	1 in (2.54 cm)
Width	Media diameter: 3.5 in (8.89 cm)
	Physical size: 4 in (10.2 cm)
Interface	Serial ATA (3.0 Gb/s)
Synchronous Transfer	Up to 3 Gb/s
Rate (Maximum)
Buffer	16 MB
Seek Time (typical	Single Track	2.0 ms
reads, includes	Average	11 ms
controller overhead,
	Full-Stroke	21 ms
including settling)
Rotational Speed	7,200 RPM
Logical Blocks	976,773,168
Operating Temperature41° to 131° F (5° to 55° C)
Capacity	250,059,350,016 bytes
Height	1 in (2.54 cm)
Width	Media diameter: 3.5 in (8.89 cm)
	Physical size: 4 in (10.2 cm)

	Interface	Serial ATA (3.0 Gb/s)
	Synchronous Transfer	Up to 3 Gb/s
	Rate (Maximum)
	Buffer	8 MB
	Seek Time (typical	Single Track	1.0 ms
	reads, includes	Average	8.5 ms
	controller overhead,
		Full-Stroke	18 ms
	including settling)
	Rotational Speed	7,200 RPM
	Logical Blocks	488,397,168
	Operating Temperature41° to 131° F (5° to 55° C)
160-GB	Capacity	160,041,885,696 bytes
	Height	1 in (2.54 cm)
	Width	Media diameter: 3.5 in (8.89 cm)
		Physical size: 4 in (10.2 cm)
	Interface	Serial ATA (3.0 Gb/s)
	Synchronous Transfer	Up to 3 Gb/s
	Rate (Maximum)
	Buffer	8 MB
	Seek Time (typical	Single Track	0.9 ms
	reads, includes	Average	9.3 ms
	controller overhead,
		Full-Stroke	18 ms
	including settling)
	Rotational Speed	7,200 RPM
	Logical Blocks	312,581,808
	Operating Temperature41° to 131° F (5° to 55° C)
80-GB	Capacity	80,026,361,856 bytes
	Height	1 in (2.54 cm)
	Width	Media diameter: 3.5 in (8.89 cm)
		Physical size: 4 in (10.2 cm)

DA - 12744 Worldwide QuickSpecs — Version 13 — 12.14.2007 Page 33