Western Digital WD40EFZX 3.5″ hard drive with a storage capacity of 4 TB and featuring a SATA interface.
All information about the Western Digital WD40EFZX hard disk drive: technical parameters, failure symptoms, frequently asked questions, reviews, HDD repair and data recovery.
Western Digital WD40EFZX Technical Details:
Manufacturer:
Western Digital
Hard Disk Model:
WD40EFZX
Disk Family:
Red Plus (NAS)
Form Factor:
3.5″
Capacity:
4 TB (4,000,000,000,000 bytes)
Formatted Capacity:
Approximately 3.63 TB
Rotational Speed:
5400 RPM
Average Seek Time:
12.0 ms (read) / 13.0 ms (write)
Disk Interface:
Serial ATA-600 (SATA 6 Gb/s)
Buffer Size:
262144 KB (256 MB)
External Transfer Rate:
600 MB/s
Mean Time Between Failures (MTBF):
1,000,000 hours
Workload Rating:
180 TB/year
Western Digital WD40EFZX Hard Drives:
- WD40EFZX-68AWUN0, DCM , Western Digital 4TB SATA 3.5″ Hard Drive
Western Digital WD40EFZX 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 WD40EFZX Data Recovery & HDD Repair:
When it comes to data recovery one of the most common problems Western Digital WD40EFZX 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 2060-810011-001 REV P1, etc.