Acer Aspire 5737Z Series Service Manual page 30

Hard Disk Drive Interface
Item
Vendor & Model Segate
Name
ST9250827AS
Capacity (GB) 250
Bytes per sector 512
Data heads 4
Drive Format
Disks 2
Spindle speed 5400
(RPM)
Performance Specifications
Buffer size 8 MB
Interface SATA
Internal transfer 778
rate (Mbits/sec,
max)
I/O data transfer 300
rate
(Mbytes/sec
max)
DC Power Requirements
Voltage 5V ±5%
tolerance
20
Specification
Segate Toshiba
ST9160310AS MK3252GSX
160 320
512 512
2 4
1 2
5400 5400
8 MB 8 MB
SATA SATA
352 400 ~ 794
typical
150 300
5V ±5% 5V ±5%
Hitachi WD
WD1600BEVT
5K350-320
5K350-250
320, 250 160
512 512
4, 4 or 3 2
2, 2 1
5400 5400
8 MB 8 MB
SATA SATA
674 ~ 729 850 Mbits/s
maximum
300 300 maximum
5V ±5% 5V ±5%
Chapter 1