WD740ADFD Western Digital 3.5″ hard drive with a storage capacity of 74GB and featuring a SATA interface. WD740ADFD Western Digital Raptor 74GB 10000RPM SATA 7-Pin Internal 16MB Cache 3.5-inch Low Profile (1.0 inch) Hard Drive.
All information about the Western Digital WD740ADFD hard disk drive: technical parameters, failure symptoms, free asked questions, reviews, HDD repair and data recovery.
Western Digital WD740ADFD Technical Details:
- Hard Disk Model: WDC WD740ADFD
- Disk Family: Raptor
- Form Factor: 3.5″
- Capacity: 74 GB (74 x 1 000 000 000 bytes)
- Number Of Disks: 1
- Number Of Heads: 2
- Rotational Speed: 10000 RPM
- Rotation Time: 6.00 ms
- Average Rotational Latency: 3.00 ms
- Disk Interface: Serial-ATA/150
- Buffer-Host Max. Rate: 150 MB/seconds
- Buffer Size: 16384 KB
- Drive Ready Time (typical): 7 seconds
- Average Seek Time: 4.6 ms
- Track To Track Seek Time: 0.4 ms
- Full Stroke Seek Time: 10.2 ms
- Width: 101.6 mm (4.00 inch)
- Depth: 147 mm (5.79 inch)
- Height: 26.1 mm (1.03 inch)
- Weight: 822 grams (1.81 pounds)
- Acoustic (Idle): 2.9 Bel
- Acoustic (Min performance and volume): 3.6 Bel
- Acoustic (Max performance and volume): 3.6 Bel
- Required Power For Spinup: 1400 mA
- Power Required (Seek): 10 W
- Power Required (Idle): 9.2 W
- Power Required (Standby): 2.7 W
- Manufacturer: Western Digital Corporation
Western Digital WD740ADFD Hard Drives:
- WD740ADFD-00NLR5, DCM HBCA2AB, Western Digital 74GB SATA 3.5″ Hard Drive
- WD740ADFD-00NLR1, DCM HBCA2AB, Western Digital 74GB SATA 3.5″ Hard Drive
Western Digital WD740ADFD Failure Symptoms:
- Electrical Failure Symptoms:
Drive is powered, but shows no sign of function;
Disk knocking as the motor fails to spin;
Clicking sound as the heads search or initialize; - Mechanical Failure Symptoms:
Clicking, grinding sounds;
Completely quiet due to ” motor freeze”;
“music” tone as the disk is powered up; - Logical Failure Examples:
Accidental deletion, accidental format, file corruption, software bugs, file system corruption, viruses and malware, and many, many more. - Firmware Failure Symptoms:
drive powers up, but is not recognised by the computer;
Drive powers up, but is recognised wrongly, sometimes with nonsensical characters;
Drive freezes during booting up; - Bad Platter Area Symptoms:
Hard disk still accessible but appear to “hang” or “sluggish”;
Constant Cyclic Redundancy (CRC) errors;
Unable to access folders or files which could be seen; - Complex Failure Model
Western Digital WD740ADFD Data Recovery & HDD Repair:
When it comes to data recovery one of the most common problems Western Digital WD740ADFD Hard Disk Drive experience is burnt circuit board(PCB). So if you will need to match a replacement PCB, it is important that you note the “Board Number” of your current circuit board in addition to the hard drive’s “Model Number“.
Multiple PCB Number revisions:
2060-701453-000, 2060-701384-002, etc.
Multiple Model Number revisions:
WD740ADFD-00NLR5, WD740ADFD-00NLR1, etc.