ST9320421ASG Seagate 2.5″ hard drive with a storage capacity of 320 GB and featuring a SATA interface. ST9320421ASG SEAGATE 2.5″ 320 GB Serial-ATA/300 Momentus 7200.3 320421 7200 RPM Hard Drive.
All information about the Seagate ST9320421ASG hard disk drive: technical parameters, failure symptoms, free asked questions, reviews, HDD repair and data recovery.
Seagate ST9320421ASG Technical Details:
- Hard Disk Model: SEAGATE ST9320421ASG
- Disk Family: Momentus 7200.3 320421
- Form Factor: 2.5″
- Capacity: 320 GB (320 x 1 000 000 000 bytes)
- Number Of Disks: 2
- Number Of Heads: 4
- 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: 16384 KB
- Width: 69.85 mm (2.72 inch)
- Depth: 100.5 mm (3.94 inch)
- Height: 9.5 mm (0.35 inch)
- Weight: 110 grams (0.24 pounds)
- Acoustic (Idle): 2.3 Bel
- Acoustic (Min performance and volume): 2.5 Bel
- Acoustic (Max performance and volume): 3.0 Bel
- Required Power For Spinup: 1200 mA
- Power Required (Seek): 2.4 W
- Power Required (Idle): 1.2 W
- Power Required (Standby): 0.36 W
- Manufacturer: Seagate Technology
Seagate ST9320421ASG Hard Drives:
- ST9320421ASG SEAGATE 2.5″ 320 GB Serial-ATA/300 Momentus 7200.3 320421 7200 RPM Hard Drive.
Seagate ST9320421ASG 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
Seagate ST9320421ASG Data Recovery & HDD Repair:
When it comes to data recovery one of the most common problems Seagate ST9320421ASG 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 100513573, 100513573, 100508225, 100513491, 100625000, etc.