HP XW8400 Specification page 41

QuickSpecs
Technical Specifications - Hard Drives
250 GB 250 GB 250 GB 250 GB Capacity Capacity Capacity Capacity
(7,200 rpm)
Height Height Height Height
Width Width Width Width
Interface Interface Interface Interface
Synchronous Transfer Synchronous Transfer Synchronous Transfer Synchronous Transfer
Rate (Maximum) Rate Rate Rate
Cache Cache Cache Cache
Seek Time (typical reads, Seek Time Seek Time Seek Time
includes controller
overhead, including
settling)
Rotational Speed Rotational Speed Rotational Speed Rotational Speed
Logical Blocks Logical Blocks Logical Blocks Logical Blocks
Operating Temperature Operating Temperature Operating Temperature Operating Temperature
160 GB 160 GB 160 GB 160 GB Capacity Capacity Capacity Capacity
(7,200 rpm)
Height Height Height Height
Width Width Width Width
Interface Interface Interface Interface
Synchronous Transfer Synchronous Transfer Synchronous Transfer Synchronous Transfer
Rate (Maximum) Rate Rate Rate
Cache Cache Cache Cache
Seek Time Seek Time Seek Time Seek Time (typical reads,
includes controller
overhead, including
settling)
Rotational Speed Rotational Speed Rotational Speed Rotational Speed
Logical Blocks Logical Blocks Logical Blocks Logical Blocks
Operating Temperature Operating Temperature Operating Temperature Operating Temperature
DA - 12522 Canada — Version 26 — February 22, 2008
250,059,350,016 bytes
1 inches; 2.54 cm
Media diameter: 3.5 inches; 8.89 cm
Physical size: 4 inches; 10.2 cm
Serial ATA (3.0 Gb/s)
Native Command Queuing enabled (Model EA788AA only)
Up to 3.0 Gb/s
With NCQ (Model EA788AA):16 MB
Without NCQ (Model PY278AA): 8MB
Single Track Single Track Single Track Single Track
Average Average Average Average
Full-Stroke Full-Stroke Full-Stroke Full-Stroke
7,200 rpm
488,397,168
41° to 131°F (5° to 55°C)
160,041,885,696 bytes
1 inches; 2.54 cm
Media diameter: 3.5 inches; 8.89 cm
Physical size: 4 inches; 10.2 cm
Serial ATA (3.0 Gb/s)
Serial ATA (3.0 Gb/s), Native Command Queuing enabled
8 MB
Single Track Single Track Single Track Single Track
Average Average
Average Average
Full-Stroke Full-Stroke Full-Stroke Full-Stroke
7,200 rpm
312,581,808
41° to 131°F (5° to 55°C)
HP xw8400 Workstation HP xw8400 Workstation HP xw8400 Workstation HP xw8400 Workstation
1.0 ms
18.5 ms
18 ms
0.9 ms
9.3 ms
18 ms
Page 41