TOSHIBA AMERICA INFORMATION SYSTEMS
STORAGE DEVICE DIVISION
IRVINE, CALIFORNIA
MK4008GAH (HDD1744)
1.8-INCH HARD DISK DRIVE
USER MANUAL
Rev 02
11/2006
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INTRODUCTION – MK4008GAH (HDD1744) HARD DISK DRIVE
General Features
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1.8" sized drive
2 Platter
40 Gigabytes*
8mm High
15ms Average Seek Time
ATA-6 Interface
Ultra DMA 100
2MB Buffer
Rotational speed of 4,200rpm
MTTF 300,000 Hours
*Toshiba defines a megabyte (MB) as 1,000,000 bytes and a gigabyte (GB) as 1,000,000,000 bytes.
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SETUP – MK4008GAH (HDD1744) HARD DISK DRIVE
Caution: Your Hard Disk Drive is a precision device and even a small drop onto any surface can
cause damage. Electronstatic discharge can also damage the drive. You should ground yourself
prior to handling the drive.
Figure 1. MK4008GAH Side View
Installation Notes
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Do not apply any force to the top cover, except the screw areas on top cover. Maximum force to the
specified area is 2N.
important Note: Disconnect power from your computer system before beginning
installation
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USING THE HARD DISK DRIVE – MK4008GAH (HDD1744)
HARD DISK DRIVE
Backing up Data Files
To avoid data loss, regularly back up the data files on the hard disk drive.
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SPECIFICATIONS –MK4008GAH (HDD1744) HARD DISK DRIVE
General
Model
Interface
MK4008GAH (HDD1744)
ATA-6
Functionality
Formatted Capacity
Rotational Speed
Avg. Rotational Latency
Spin-up Time
40.0GB*
4,200rpm
7.14/ms
3.sec (typical)
2MB
Buffer
Seek Time
Average
Maximum
15
26
Internal Transfer Rate
Host Transfer Rate
Ultra DMA mode
PIO Mode
132.6 ~ 230.9 Mbits/sec (max)
100Mbytes/sec
16.6Mbytes/sec
1:1
Interleave Factor
*Toshiba defines a megabyte (MB) as 1,000,000 bytes and a gigabyte (GB) as 1,000,000,000 bytes.
Internal Drive Characteristics
Number of Disks
2
Number of Data Heads
Track Density (TPI)
Logical Cylinders
Logical Heads
4
4,331 (110k)
16,383
16
Logical Sectors/track
Bytes per Sector
63
512
Logical Blocks (LBA)
78,126,048
Reliability
Preventative maintenance
Non-recoverable read errors
None
1 error per 1013 bits read
Electrical
Voltage
3.3V 5%
Power Consumption
Start
Seek
1.8W typ
1.1W typ
Read/Write
Sleep
1.0W typ
0.07W typ
Energy Consumption Efficiency
0.0075W/GB avg
Shock
Operating
Non-Operating
4,900m/s2 (500G)(2msec)
14,700m/s2 (1500G)(1msec)
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Physical
Height
Width
Depth
Weight
0.315 (8.0mm)
2.13" (54.0mm)
3.09" (78.5mm)
2.08oz (59g) typ
Regulatory
The drive satisfies the following standards:
Underwriters Laboratories (UL)
1950
Canadian Standard Association (CSA) C22.2 No. 950
TUV Rheinland
BSMI
EN 60 950
3902C799
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DRIVE CONNECTORS –MK4008GAH (HDD1744) HARD DISK DRIVE
Figure 1. MK4008GAH HDD - INTERFACE CONNECTOR
Interface Connector
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Interface Signals
DRIVE INTERFACE SIGNALS
PIN
1
SIGNAL
RESERVED
- RESET
DD 7
PIN
2
SIGNAL
RESERVED
GROUND
DD 8
3
4
5
6
7
DD 6
8
DD 9
9
DD 5
10
12
14
16
18
20
22
24
26
DD 10
11
13
15
17
19
21
23
25
DD 4
DD 11
DD 3
DD 12
DD 2
DD 13
DD 1
DD 14
DD 0
DD 15
GROUND
GROUND
DMARQ
-DIOW/STOP
GROUND
- DIOR/
- HDMARDY
HSTROBE
27
IORDY/
28
GROUND
- DMARDY/-
DSTROBE
29
31
33
35
37
39
DMACK
DA1
30
32
34
36
38
40
INTRQ
- PDIAG/-CBLID
DA 2
DA0
- CS0
- DASP
+3.3V
CS1
+3.3V
RESERVED
Note: Symbol (-) in front of signal indicates negative logic.
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