HGST HDS724040ALE640 3.5″ hard drive with a storage capacity of 4 TB and featuring a SATA interface. HGST HDS724040ALE640 Deskstar 7K4000 4 TB 3.5″ Internal Hard Drive Serial ATA-600 7200 RPM 64 MB Buffer.

All information about the HGST HDS724040ALE640 hard disk drive: technical parameters, failure symptoms, frequently asked questions, reviews, HDD repair and data recovery.

HGST HDS724040ALE640

HGST HDS724040ALE640 Technical Details:

Manufacturer:
HGST (Hitachi Global Storage Technologies)
Hard Disk Model:
HDS724040ALE640
Disk Family:
Deskstar 7K4000 (Performance series)
Form Factor:
3.5″
Capacity:
4 TB (4,000,000,000,000 bytes)
Formatted Capacity:
Approximately 3.63 TB
Number Of Disks:
4
Number Of Heads:
8
Rotational Speed:
7200 RPM
Average Seek Time:
8.5 ms (read) / 9.5 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 205 MB/s
Mean Time Between Failures (MTBF):
1,000,000 hours
Advanced Format:
512e (512-byte emulation, 4K physical sectors)

Note: The HGST HDS724040ALE640 is part of the Deskstar 7K4000 series, released around 2012-2013. This was HGST’s flagship high-performance consumer drive, offering 4 TB of storage at 7200 RPM. The 7K4000 series featured 4 platters and 8 heads, delivering excellent capacity and performance. It was one of the first 4 TB consumer drives on the market and became a favorite among NAS and RAID users.


HGST HDS724040ALE640 Hard Drives:

  • HDS724040ALE640 – 4 TB SATA 3.5″ Performance Hard Drive, Deskstar 7K4000 series

HGST HDS724040ALE640 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 HDS724040ALE640 Data Recovery & HDD Repair:

When it comes to data recovery one of the most common problems HGST HDS724040ALE640 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 0A90379, etc.

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