ST3750840AS Seagate 3.5″ hard drive with a storage capacity of 750GB and featuring a SATA interface. ST3750840AS Seagate Barracuda 750GB 7200RPM SATA 3Gb/s 8MB Cache 3.5-inch Hard Drive.
All information about the Seagate ST3750840AS hard disk drive: technical parameters, failure symptoms, free asked questions, reviews, HDD repair and data recovery.
Seagate ST3750840AS Technical Details:
- Hard Disk Model: SEAGATE ST3750840AS
- Disk Family: Barracuda 7200.10 750840
- Form Factor: 3.5″
- Capacity: 750 GB (750 x 1 000 000 000 bytes)
- Number Of Disks: 4
- Number Of Heads: 8
- 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: 8192 KB
- Drive Ready Time (typical): 15 seconds
- Average Seek Time: 8.5 ms
- Track To Track Seek Time: 0.8 ms
- Width: 101.6 mm (4.00 inch)
- Depth: 146.99 mm (5.79 inch)
- Height: 26.1 mm (1.03 inch)
- Weight: 720 grams (1.59 pounds)
- Acoustic (Idle): 2.1 Bel
- Acoustic (Min performance and volume): 2.3 Bel
- Acoustic (Max performance and volume): 2.3 Bel
- Required Power For Spinup: 2000 mA
- Power Required (Seek): 5.8 W
- Power Required (Idle): 4.50 W
- Manufacturer: Seagate Technology
Seagate ST3750840AS Hard Drives:
- ST3750840AS, 5QD, WU, PN 9BJ138-150, FW 3.AAD, Seagate 750GB SATA 3.5″ Hard Drive
- ST3750840AS, 5QD, WU, PN 9BJ138-225, FW 3.AAK, Seagate 750GB SATA 3.5″ Hard Drive
- ST3750840AS, 5QD, WU, PN 9BJ138-277, FW 3.CQD, Seagate 750GB SATA 3.5″ Hard Drive
- ST3750840AS, 5QD, WU, PN 9BJ138-065, FW 3.AAD, Seagate 750GB SATA 3.5″ Hard Drive
Seagate ST3750840AS 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 ST3750840AS Data Recovery & HDD Repair:
When it comes to data recovery one of the most common problems Seagate ST3750840AS 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:
100435196, 100406533, etc.