HDT721064SLA380 Hitachi 3.5″ hard drive with a storage capacity of 640GB and featuring a SATA interface. HDT721064SLA380 Hitachi Deskstar 7k1000.B 640GB 7200RPM SATA 3GB/s 8MB Cache 3.5-inch Hard Disk Drive.
All information about the Hitachi HDT721064SLA380 hard disk drive: technical parameters, failure symptoms, free asked questions, reviews, HDD repair and data recovery.
Hitachi HDT721064SLA380 Technical Details:
- Hard Disk Model: HITACHI HDT721064SLA380
- Disk Family: Deskstar 7K1000.B
- Form Factor: 3.5″
- Capacity: 640 GB (640 x 1 000 000 000 bytes)
- Number Of Disks: 2
- Number Of Heads: 4
- Rotational Speed: 7200 RPM
- Rotation Time: 8.33 ms
- Average Rotational Latency: 4.17 ms
- Disk Interface: Serial-ATA/300
- Buffer-Host Max. Rate: 300 MB/seconds
- Buffer Size: 8192 KB
- Drive Ready Time (typical): 10 seconds
- Average Seek Time: 8.5 ms
- Track To Track Seek Time: 0.8 ms
- Full Stroke Seek Time: 15.1 ms
- Width: 101.6 mm (4.00 inch)
- Depth: 147 mm (5.79 inch)
- Height: 26.1 mm (1.03 inch)
- Weight: 680 grams (1.50 pounds)
- Required Power For Spinup: 3300 mA
- Power Required (Seek): 7 W
- Power Required (Idle): 5 W
- Power Required (Standby): 2 W
- Manufacturer: Hitachi Global Storage Technologies
Hitachi HDT721064SLA380 Hard Drives:
- HDT721064SLA380, PN 0A38110, MLC BA3013, Hitachi 640GB SATA 3.5″ Hard Drive
Hitachi HDT721064SLA380 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
Hitachi HDT721064SLA380 Data Recovery & HDD Repair:
When it comes to data recovery one of the most common problems Hitachi HDT721064SLA380 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 “Main Controller IC Number (3.5″)” or “White Label Number (2.5″)” of your current circuit board in addition to the hard drive’s “Model Number“.
Multiple Main Controller IC Number revisions:
0A56992, etc.
Multiple Sticker Number revisions:
0A29871 BA2937B, etc.