WD400BD Western Digital 3.5″ hard drive with a storage capacity of 40GB and featuring a SATA interface. WD400BD Western Digital Caviar Se 40GB 7200RPM SATA 7-Pin 2MB Cache 3.5-inch Low Profile (1.0 inch) Hard Drive.
All information about the Western Digital WD400BD hard disk drive: technical parameters, failure symptoms, free asked questions, reviews, HDD repair and data recovery.
Western Digital WD400BD Technical Details:
- Hard Disk Model: WDC WD400BD
- Disk Family: Caviar
- Form Factor: 3.5″
- Capacity: 40 GB (40 x 1 000 000 000 bytes)
- Number Of Disks: 1
- Number Of Heads: 1
- 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: 2048 KB
- Drive Ready Time (typical): 6 seconds
- Average Seek Time: 8.9 ms
- Track To Track Seek Time: 2 ms
- Full Stroke Seek Time: 21 ms
- Width: 101.6 mm (4.00 inch)
- Depth: 147 mm (5.79 inch)
- Height: 25.4 mm (1.00 inch)
- Acoustic (Idle): 3.0 Bel
- Acoustic (Min performance and volume): 3.1 Bel
- Acoustic (Max performance and volume): 3.2 Bel
- Required Power For Spinup: 1250 mA
- Power Required (Seek): 12.8 W
- Power Required (Idle): 9.5 W
- Power Required (Standby): 1.9 W
- Manufacturer: Western Digital Corporation
Western Digital WD400BD Hard Drives:
- Western Digital WD400BD, 7200RPM, 3.0Gp/s, 40GB SATA 3.5″ HDD
- WD400BD-75MRA1, DCM HSBHNTJCH, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-75JMA0, DCM HSBACTJCA, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-75JMA0, DCM HSBHCTJCH, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-60LRA5, DCM HSBANTJCH, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-75JMA0, DCM DSBHCTJCH, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-75JMC0, DCM DSBHCTJCH, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-75MRA1, DCM DSCANTJCA, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-75JMA0, DCM DSBAYTJCA, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-75JMA0, DCM ESBHYTJCH, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-22LRA0, DCM HSBHNTJCH, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-22JMA0, DCM HSBHCTJCH, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-00MRA1, DCM HSBACTJCH, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-22JMA0, DCM HSCACTJCH, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-60JPA0, DCM HSBANTJCH, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-60LRA0, DCM DSBHNTJAH, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-60LRA0, DCM DSCHNTJCA, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-75MRA2, DCM HSCAYTJAA, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-22LRA0, DCM DSCACTJCA, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-60JPA0, DCM HSCHNTJCH, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-60LTA0, DCM HSBHCTJAA, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-08JMC0, DCM HSBHCTJCH, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-60LRA0, DCM HSBHNTJCH, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-75MRA1, DCM DSBACTJCA, Western Digital 40GB SATA 3.5″ Hard Drive
- WD400BD-75MRA3, DCM HSBHYTJCA, Western Digital 40GB SATA 3.5″ Hard Drive
Western Digital WD400BD 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 WD400BD Data Recovery & HDD Repair:
When it comes to data recovery one of the most common problems Western Digital WD400BD 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:
2060-001293-001, 2060-701335-007, 2060-701355-005, 2060-001293-000, 2060-001293-001, 2060-701335-003, 2060-701335-005, 2060-701293-001, etc.
Multiple Model Number revisions:
WD400BD, WD400BD-00MRA1, WD400BD-22LRA0, WD400BD-08JMC0, WD400BD-60JPA0, WD400BD-75LRA0, WD400BD-08MRA1, WD400BD-60LRA5, WD400BD-22JMA0, WD400BD-60LRA0, WD400BD-75JMA0, WD400BD-75MRA1, WD400BD-75JMC0, WD400BD-75MRA3, WD400BD-22LRA1, WD400BD-60LTA0, WD400BD-75MRA2, WD400BD-22JMC0, etc.