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Serial ATA (NCQ and
Serial ATA (NCQ andSerial ATA (NCQ and
Serial ATA (NCQ and
Smart III) 1.5-Gb/s Hard
Smart III) 1.5-Gb/s HardSmart III) 1.5-Gb/s Hard
Smart III) 1.5-Gb/s Hard
Drives
DrivesDrives
Drives
80 GB 5400 RPM
80 GB 5400 RPM80 GB 5400 RPM
80 GB 5400 RPM
Capacity
CapacityCapacity
Capacity
80,026,361,856 bytes
Dimensions
DimensionsDimensions
Dimensions
(H x W x D)
0.37 x 3.94 x 2.75 in (0.94 x 10.0 x 6.98 cm)
Physical width
Physical widthPhysical width
Physical width
4 in (10.2 cm)
Interface
InterfaceInterface
Interface
Serial ATA (1.5 Gb/s)
Synchronous Transfer
Synchronous TransferSynchronous Transfer
Synchronous Transfer
Rate
RateRate
Rate
(Maximum)
Up to 1.5 Gb/s
Cache
CacheCache
Cache
8 MB
Seek Time
Seek TimeSeek Time
Seek Time
Read
ReadRead
Read
(typical)
Track to Track
Track to TrackTrack to Track
Track to Track
2 ms
Average
AverageAverage
Average
15 ms
Full-Stroke
Full-StrokeFull-Stroke
Full-Stroke
23 ms
Average latency
Average latencyAverage latency
Average latency
5.6 ms
Rotational Speed
Rotational SpeedRotational Speed
Rotational Speed
5,400 RPM
Buffer
BufferBuffer
Buffer
(max)
4 sec
Operating Temperature
Operating TemperatureOperating Temperature
Operating Temperature
41° to 131° F (5° to 55° C)
80 GB 7200 RPM
80 GB 7200 RPM80 GB 7200 RPM
80 GB 7200 RPM
Capacity
CapacityCapacity
Capacity
80,026,361,856 bytes
Dimensions
DimensionsDimensions
Dimensions
(H x W x D)
0.37 x 3.94 x 2.75 in (0.94 x 10.0 x 6.98 cm)
Physical width
Physical widthPhysical width
Physical width
4 in (10.2 cm)
Interface
InterfaceInterface
Interface
Serial ATA (1.5 Gb/s)
Synchronous transfer rate
Synchronous transfer rateSynchronous transfer rate
Synchronous transfer rate
(Maximum)
Up to 1.5 Gb/s
Cache
CacheCache
Cache
8 MB
Seek Time
Seek TimeSeek Time
Seek Time
Read
ReadRead
Read
(typical)
Track to Track
Track to TrackTrack to Track
Track to Track
1 ms
Average
AverageAverage
Average
13 ms
Full-Stroke
Full-StrokeFull-Stroke
Full-Stroke
22 ms
Average latency
Average latencyAverage latency
Average latency
4.2 ms
Rotational Speed
Rotational SpeedRotational Speed
Rotational Speed
7,200 RPM
Buffer
BufferBuffer
Buffer
(max)
4 sec
Operating Temperature
Operating TemperatureOperating Temperature
Operating Temperature
41° to 131° F (5° to 55° C)
160 GB 7200 RPM
160 GB 7200 RPM160 GB 7200 RPM
160 GB 7200 RPM
Capacity
CapacityCapacity
Capacity
160,041,885,696 bytes
Dimensions
DimensionsDimensions
Dimensions
(H x W x D)
0.37 x 3.94 x 2.75 in (0.94 x 10.0 x 6.98 cm)
Physical width
Physical widthPhysical width
Physical width
4 in (10.2 cm)
Interface
InterfaceInterface
Interface
Serial ATA (1.5 Gb/s)
Synchronous transfer rate
Synchronous transfer rateSynchronous transfer rate
Synchronous transfer rate
(Maximum)
Up to 1.5 Gb/s
Buffer
BufferBuffer
Buffer
8 MB
QuickSpecs
HP Compaq dc7800 Business PC
HP Compaq dc7800 Business PCHP Compaq dc7800 Business PC
HP Compaq dc7800 Business PC
Technical Specifications - Hard Drives
DA - 12744 North America — Version 25 — May 16, 2008
Page 42