Acer Aspire 4736G Series Service Manual page 31

Hard Disk Drive Interface
Item
Vendor & Seagate
Model Name ST9250827AS
Capacity 250
(MB)
Bytes per 512
sector
Data heads 4
Drive Format
Disks 2
Spindle speed 5400
(RPM)
Performance Specifications
Buffer size 8 MB
Interface SATA
Internal
778
transfer rate
(Mbits/sec,
max)
I/O data 300
transfer rate
(Mbytes/sec
max)
DC Power Requirements
Voltage 5V ±5%
Chapter 1
Specifications
Seagate Seagate
ST9320320AS ST9500325AS
ST9160310AS
320, 160 500
512 512
4, 2 4
2 or 1, 1 2
5400 5400
8 MB 8 MB
SATA SATA
352 1,175
150 300
5V ±5% 5V ±5%
Toshiba WD
MK3252GSX WD5000BEVT
MK2552GSX WD3200BEVT
MK1652GSX WD2500BEVT
WD1600BEVT
320, 250, 160 500, 320, 250,
160
512 512
4, 4, 2 4, 3, 2, 2
2, 2, 1 2, 2, 1, 1
5400 5400
8 MB 8 MB
SATA SATA
400 ~ 794 106 Mbits/s
typical maximum
300 300 maximum
5V ±5% 5V ±5%
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