MK4021GAS Toshiba 2.5″ hard drive with a storage capacity of 40GB and featuring a IDE interface. MK4021GAS-NDW-R Toshiba Mk4021gas 40GB Udma/100 4200RPM 2MB 2.5 Ide Hard Drive.
All information about the Toshiba MK4021GAS hard disk drive: technical parameters, failure symptoms, free asked questions, reviews, HDD repair and data recovery.
Toshiba MK4021GAS Technical Details:
- Hard Disk Model: TOSHIBA MK4021GAS
- Disk Family: MK-4021GAS
- Form Factor: 2.5″
- Capacity: 40.01 GB (40.01 x 1 000 000 000 bytes)
- Number Of Disks: 2
- Number Of Heads: 3
- Rotational Speed: 4200 RPM
- Rotation Time: 14.29 ms
- Average Rotational Latency: 7.14 ms
- Disk Interface: Ultra-ATA/100
- Buffer-Host Max. Rate: 100 MB/seconds
- Buffer Size: 2048 KB
- Drive Ready Time (typical): 4 seconds
- Average Seek Time: 12 ms
- Track To Track Seek Time: 2 ms
- Full Stroke Seek Time: 22 ms
- Width: 69.85 mm (2.75 inch)
- Depth: 100 mm (3.94 inch)
- Height: 9.5 mm (0.37 inch)
- Weight: 99 grams (0.22 pounds)
- Required Power For Spinup: 940 mA
- Power Required (Seek): 2.7 W
- Power Required (Idle): 1.0 W
- Power Required (Standby): 0.25 W
- Manufacturer: Toshiba Corp., Storage Device Division
Toshiba MK4021GAS Hard Drives:
- MK4021GAS, HDD2182 B ZE01 T, Toshiba 40GB IDE 2.5″ Hard Drive
- MK4021GAS, C0/GA224C, HDD2182 F ZE01 T, Toshiba 40GB IDE 2.5″ Hard Drive
- MK4021GAS, D0/GA224G, HDD2182 B ZE01 T, Toshiba 40GB IDE 2.5″ Hard Drive
- MK4021GAS, B0/GA224A, HDD2182 Y ZE01 T, Toshiba 40GB IDE 2.5″ Hard Drive
- MK4021GAS, B0/GA224A, HDD2182 K ZE01 T, Toshiba 40GB IDE 2.5″ Hard Drive
- MK4021GAS, D0/GA224G, HDD2182 B ZE01 S, Toshiba 40GB IDE 2.5″ Hard Drive
- MK4021GAS, C0/GA225B, HDD2182 P ZE01 T, Toshiba 40GB IDE 2.5″ Hard Drive
Toshiba MK4021GAS 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
Toshiba MK4021GAS Data Recovery & HDD Repair:
When it comes to data recovery one of the most common problems Toshiba MK4021GAS 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:
G5B000211000-A, etc.