SMART Short Self Test Failed - (Error code: WHD16-8NR)

HI all,

I have had my XPS L520X for 4 years 2 months. I've never had an issue with its operation till last week. It randomly restarted and came up with the Realtek PCI Issue when it rebooted.

To cut a very long story short to fault find what was happening, I re-installed the whole operating system including a formatting of the hard drive.

The problem of the laptop freezing/crashing and rebooting with various erros while doing usual tasks has not been solved.

I ran the Dell support centre software and it shows the SMART self test has failed with the following code (Error code: WHD16-8NR).

Event Log:

Dell Support Center Log File
17 March 2016 16:53:55
Overall Result: Failed


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ST9750420AS [ATA:0:0\\?\ide#diskst9750420as_____________________________0005dem1#4&34e0611c&0&0.0.0#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}]
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  Vendor: Seagate
  Model Number: ST9750420AS
  Serial Number: 6WS100EG
  Firmware Revision: 0005DEM1
  Size: 698.6 GB
  Rotation Rate: 7200 RPM
  Cache Size: 16 MB
  Temperature: 43 C
  Physical Sector Size: 4 KB
  Logical Sector Size: 512 B
  Logical Sector Count: 1465149168
  Supported Standards: ATA8-ACS, ATA/ATAPI-7, ATA/ATAPI-6, ATA/ATAPI-5
  Specification Version: ATA8-ACS rev 4

  ----------------------------
  OS - C: [PARTITION:C\\.\C:\]
  ----------------------------

    File System: NTFS
    Volume Serial Number: 5087-8802
    Volume Capacity: 679.00 GB
    Volume Free Space: 568.63 GB
    Volume Used Space: 110.37 GB




  SMART Status Test

    Test Started         - 17/03/2016 16:43:57
      
    Test Finished:       - 17/03/2016 16:43:59
      Passed

  SMART Thresholds Test

    Test Started         - 17/03/2016 16:43:59
      
    Test Finished:       - 17/03/2016 16:44:01
      Passed

  Targeted Read Test

    Test Started         - 17/03/2016 16:44:01
      
    Test Finished:       - 17/03/2016 16:44:05
      Passed

  Random Seek Test

    Test Started         - 17/03/2016 16:44:05
      
    Test Finished:       - 17/03/2016 16:44:54
      Passed

  Funnel Seek Test

    Test Started         - 17/03/2016 16:44:54
      
    Test Finished:       - 17/03/2016 16:46:14
      Passed

  SMART Short Self Test

    Test Started         - 17/03/2016 16:46:14
      
    Error Message:       - 17/03/2016 16:46:24
      The device reported the following status: The previous self-test completed having the read element of the test failed.
    Error Message:       - 17/03/2016 16:46:25
      The first failing LBA value is 121243744 and the failure occurred after the device had been operating for 8792 power-on hours.
    Test Finished:       - 17/03/2016 16:46:26
      Failed (Error code: WHD16-8NR)

  Surface Scan Test

    Test Started         - 17/03/2016 16:46:26
      
    Test Finished:       - 17/03/2016 16:47:25
      Passed

  Surface Scan Test - 2

    Test Started         - 17/03/2016 16:47:25
      
    Test Finished:       - 17/03/2016 16:48:58
      Passed

I also went into the BIOS BOOT MENU by pressing F12 on start-up and ran the diagnostics which seemed to have said everything passed however I did see a faliure error during its process which was too quick for me to write down the error.

In a nut shell, my thought is that my hard drive is failing/ or is about to fail or is corrupt.

My simple question is, do I need a new hard drive with the information I have provided?

Many thanks!