ST3120814A Seagate 3.5″ hard drive with a storage capacity of 120GB and featuring a IDE interface. ST3120814A Seagate Barracuda 120GB 7200RPM IDE ROHS COMPLIANT. 8MB Cache DMA/ATA100(ULTRA) 3.5-inch Low Profile (1.0 inch) Hard Drive.

All information about the Seagate ST3120814A hard disk drive: technical parameters, failure symptoms, free asked questions, reviews, HDD repair and data recovery.

Seagate ST3120814A Technical Details:

• Hard Disk Model: SEAGATE ST3120814A
• Disk Family: Barracuda 7200.9 120814
• Form Factor: 3.5″
• Capacity: 120 GB (120 x 1 000 000 000 bytes)
• Number Of Disks: 1
• Number Of Heads: 2
• Rotational Speed: 7200 RPM
• Rotation Time: 8.33 ms
• Average Rotational Latency: 4.17 ms
• Disk Interface: Ultra-ATA/100
• Buffer-Host Max. Rate: 100 MB/seconds
• Buffer Size: 8192 KB
• Width: 101.6 mm (4.00 inch)
• Depth: 146.99 mm (5.79 inch)
• Height: 26.1 mm (1.03 inch)
• Weight: 580 grams (1.28 pounds)
• Acoustic (Idle): 2.5 Bel
• Acoustic (Min performance and volume): 2.8 Bel
• Acoustic (Max performance and volume): 2.8 Bel
• Required Power For Spinup: 2800 mA
• Power Required (Seek): 12.8 W
• Power Required (Idle): 7.20 W
• Power Required (Standby): 0.80 W
• Manufacturer: Seagate Technology

Seagate ST3120814A Hard Drives:

• ST3120814A, 5LS, WU, PN 9BD03C-303, FW 3.AAE, Seagate 120GB IDE 3.5″ Hard Drive
• ST3120814A, 5LS, WU, PN 9BD03C-304, FW 3.AAJ, Seagate 120GB IDE 3.5″ Hard Drive

Seagate ST3120814A 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 ST3120814A Data Recovery & HDD Repair:

When it comes to data recovery one of the most common problems Seagate ST3120814A 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:
100387574, etc.