HP DC7900 - Manual (Page 38)

2.5” 7200 RPM Serial 2.5” 7200 RPM Serial 2.5” 7200 RPM Serial 2.5” 7200 RPM Serial
ATA Hard Drives
ATA Hard Drives ATA Hard Drives ATA Hard Drives
250 GB 250 GB 250 GB 250 GB Capacity Capacity Capacity Capacity 250,059,350,016 bytes
Height Height Height Height (Nominal) 0.374 in (9.5 mm)
Width Width Width Width (Nominal) Media diameter: 2.5 in (63.5 mm)
Physical size: 2.75 in (70 mm)
Interface Interface Interface Interface Serial ATA (3.0 Gb/s)
Synchronous Transfer Rate Synchronous Transfer Rate Synchronous Transfer Rate Synchronous Transfer Rate
(Maximum) Up to 3 Gb/s
Cache Cache Cache Cache 8 MB
Seek Time Seek Time Seek Time Seek Time (typical reads,
includes controller
overhead, including
settling) Single Track Single Track Single Track Single Track 2.0 ms
Average Average Average Average 12 ms
Full-Stroke Full-Stroke Full-Stroke Full-Stroke 22 ms
Rotational Speed Rotational Speed Rotational Speed Rotational Speed 7,200 rpm
Logical Blocks Logical Blocks Logical Blocks Logical Blocks 488,397,168
Operating Temperature Operating Temperature Operating Temperature Operating Temperature 41° to 131° F (5° to 55° C)
160 GB 160 GB 160 GB 160 GB Capacity Capacity Capacity Capacity 160,041,885,696 bytes
Height Height Height Height (Nominal) 0.374 in (9.5 mm)
Width Width Width Width (Nominal) Media diameter: 2.5 in (63.5 mm)
Physical size: 2.75 in (70 mm)
Interface Interface Interface Interface Serial ATA (3.0 Gb/s)
Synchronous Transfer Rate Synchronous Transfer Rate Synchronous Transfer Rate Synchronous Transfer Rate
(Maximum) Up to 3 Gb/s
Cache Cache Cache Cache 8 MB
Seek Time Seek Time Seek Time Seek Time (typical reads,
includes controller
overhead, including
settling) Single Track Single Track Single Track Single Track 2.0 ms
Average Average Average Average 12 ms
Full-Stroke Full-Stroke Full-Stroke Full-Stroke 22 ms
Rotational Speed Rotational Speed Rotational Speed Rotational Speed 7,200 rpm
Logical Blocks Logical Blocks Logical Blocks Logical Blocks 312,581,808
Operating Temperature Operating Temperature Operating Temperature Operating Temperature 41° to 131° F (5° to 55° C)
80 GB 80 GB 80 GB 80 GB Capacity Capacity Capacity Capacity 80,026,361,856 bytes
Height Height Height Height (Nominal) 0.374 in (9.5 mm)
Width Width Width Width (Nominal) Media diameter: 2.5 in (63.5 mm)
Physical size: 2.75 in (70 mm)
Interface Interface Interface Interface Serial ATA (3.0 Gb/s)
Synchronous Transfer Rate Synchronous Transfer Rate Synchronous Transfer Rate Synchronous Transfer Rate
(Maximum) Up to 3 Gb/s
Cache Cache Cache Cache 8 MB
QuickSpecs
HP Compaq dc7900 Business PC HP Compaq dc7900 Business PC HP Compaq dc7900 Business PC HP Compaq dc7900 Business PC
Technical Specifications - Hard Drives
DA - 13029 North America — Version 15 — March 30, 2009 Page 38