HGST HDS723020ALA640 3.5″ hard drive with a storage capacity of 2TB and featuring a SATA interface.
All information about the HGST HDS723020ALA640 hard disk drive: technical parameters, failure symptoms, HDD PCB repair and recommended retailers.
HGST HDS723020ALA640 Technical Details:
Manufacturer:
HGST (Hitachi Global Storage Technologies)
Hard Disk Model:
HDS723020ALA640
Disk Family:
Deskstar 7K3000 (Performance series)
Form Factor:
3.5″
Capacity:
2 TB (2,000,000,000,000 bytes)
Formatted Capacity:
Approximately 1.81 TB
Number Of Disks:
3
Number Of Heads:
5
Rotational Speed:
7200 RPM
Average Seek Time:
8.2 ms (read) / 9.2 ms (write)
Disk Interface:
Serial ATA-600 (SATA 6 Gb/s)
Buffer Size:
65536 KB (64 MB)
External Transfer Rate:
600 MB/s
Internal Transfer Rate:
Up to 204 MB/s
Mean Time Between Failures (MTBF):
1,000,000 hours
Advanced Format:
512n (512-byte native, Traditional Sector)
HGST HDS723020ALA640 Hard Drives:
- HDS723020ALA640 – 2 TB SATA 3.5″ Performance Hard Drive, Deskstar 7K3000 series
HGST HDS723020ALA640 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
HGST HDS723020ALA640 HDD PCB Repair:
When it comes to data recovery one of the most common problems HGST HDS723020ALA640 hard drive experience is a burned circuit board (PCB). Therefore, if you need to replace the PCB, be sure to match the “PCB Number” of the current board, such as 0A90284, etc.
